You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2018/05/17 14:48:34 UTC

[35/51] [partial] hbase-site git commit: Published site at cf529f18a9959589fa635f78df4840472526ea2c.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7bcc960d/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/MasterObserver.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/MasterObserver.html b/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/MasterObserver.html
index c8405ee..7c87df2 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/MasterObserver.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/MasterObserver.html
@@ -217,1117 +217,1215 @@
 <span class="sourceLineNo">209</span>   * table RPC call.<a name="line.209"></a>
 <span class="sourceLineNo">210</span>   * @param ctx the environment to interact with the framework and master<a name="line.210"></a>
 <span class="sourceLineNo">211</span>   * @param tableName the name of the table<a name="line.211"></a>
-<span class="sourceLineNo">212</span>   * @param htd the TableDescriptor<a name="line.212"></a>
-<span class="sourceLineNo">213</span>   */<a name="line.213"></a>
-<span class="sourceLineNo">214</span>  default void preModifyTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.214"></a>
-<span class="sourceLineNo">215</span>      final TableName tableName, TableDescriptor htd) throws IOException {}<a name="line.215"></a>
-<span class="sourceLineNo">216</span><a name="line.216"></a>
-<span class="sourceLineNo">217</span>  /**<a name="line.217"></a>
-<span class="sourceLineNo">218</span>   * Called after the modifyTable operation has been requested.  Called as part<a name="line.218"></a>
-<span class="sourceLineNo">219</span>   * of modify table RPC call.<a name="line.219"></a>
-<span class="sourceLineNo">220</span>   * @param ctx the environment to interact with the framework and master<a name="line.220"></a>
-<span class="sourceLineNo">221</span>   * @param tableName the name of the table<a name="line.221"></a>
-<span class="sourceLineNo">222</span>   * @param htd the TableDescriptor<a name="line.222"></a>
-<span class="sourceLineNo">223</span>   */<a name="line.223"></a>
-<span class="sourceLineNo">224</span>  default void postModifyTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.224"></a>
-<span class="sourceLineNo">225</span>      final TableName tableName, TableDescriptor htd) throws IOException {}<a name="line.225"></a>
-<span class="sourceLineNo">226</span><a name="line.226"></a>
-<span class="sourceLineNo">227</span>  /**<a name="line.227"></a>
-<span class="sourceLineNo">228</span>   * Called prior to modifying a table's properties.  Called as part of modify<a name="line.228"></a>
-<span class="sourceLineNo">229</span>   * table procedure and it is async to the modify table RPC call.<a name="line.229"></a>
-<span class="sourceLineNo">230</span>   *<a name="line.230"></a>
-<span class="sourceLineNo">231</span>   * @param ctx the environment to interact with the framework and master<a name="line.231"></a>
-<span class="sourceLineNo">232</span>   * @param tableName the name of the table<a name="line.232"></a>
-<span class="sourceLineNo">233</span>   * @param htd the TableDescriptor<a name="line.233"></a>
-<span class="sourceLineNo">234</span>   */<a name="line.234"></a>
-<span class="sourceLineNo">235</span>  default void preModifyTableAction(<a name="line.235"></a>
-<span class="sourceLineNo">236</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.236"></a>
-<span class="sourceLineNo">237</span>      final TableName tableName,<a name="line.237"></a>
-<span class="sourceLineNo">238</span>      final TableDescriptor htd) throws IOException {}<a name="line.238"></a>
-<span class="sourceLineNo">239</span><a name="line.239"></a>
-<span class="sourceLineNo">240</span>  /**<a name="line.240"></a>
-<span class="sourceLineNo">241</span>   * Called after to modifying a table's properties.  Called as part of modify<a name="line.241"></a>
-<span class="sourceLineNo">242</span>   * table procedure and it is async to the modify table RPC call.<a name="line.242"></a>
-<span class="sourceLineNo">243</span>   *<a name="line.243"></a>
-<span class="sourceLineNo">244</span>   * @param ctx the environment to interact with the framework and master<a name="line.244"></a>
-<span class="sourceLineNo">245</span>   * @param tableName the name of the table<a name="line.245"></a>
-<span class="sourceLineNo">246</span>   * @param htd the TableDescriptor<a name="line.246"></a>
-<span class="sourceLineNo">247</span>   */<a name="line.247"></a>
-<span class="sourceLineNo">248</span>  default void postCompletedModifyTableAction(<a name="line.248"></a>
-<span class="sourceLineNo">249</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.249"></a>
-<span class="sourceLineNo">250</span>      final TableName tableName,<a name="line.250"></a>
-<span class="sourceLineNo">251</span>      final TableDescriptor htd) throws IOException {}<a name="line.251"></a>
-<span class="sourceLineNo">252</span><a name="line.252"></a>
-<span class="sourceLineNo">253</span>  /**<a name="line.253"></a>
-<span class="sourceLineNo">254</span>   * Called prior to enabling a table.  Called as part of enable table RPC call.<a name="line.254"></a>
-<span class="sourceLineNo">255</span>   * @param ctx the environment to interact with the framework and master<a name="line.255"></a>
-<span class="sourceLineNo">256</span>   * @param tableName the name of the table<a name="line.256"></a>
-<span class="sourceLineNo">257</span>   */<a name="line.257"></a>
-<span class="sourceLineNo">258</span>  default void preEnableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.258"></a>
-<span class="sourceLineNo">259</span>      final TableName tableName) throws IOException {}<a name="line.259"></a>
-<span class="sourceLineNo">260</span><a name="line.260"></a>
-<span class="sourceLineNo">261</span>  /**<a name="line.261"></a>
-<span class="sourceLineNo">262</span>   * Called after the enableTable operation has been requested.  Called as part<a name="line.262"></a>
-<span class="sourceLineNo">263</span>   * of enable table RPC call.<a name="line.263"></a>
-<span class="sourceLineNo">264</span>   * @param ctx the environment to interact with the framework and master<a name="line.264"></a>
-<span class="sourceLineNo">265</span>   * @param tableName the name of the table<a name="line.265"></a>
-<span class="sourceLineNo">266</span>   */<a name="line.266"></a>
-<span class="sourceLineNo">267</span>  default void postEnableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.267"></a>
-<span class="sourceLineNo">268</span>      final TableName tableName) throws IOException {}<a name="line.268"></a>
-<span class="sourceLineNo">269</span><a name="line.269"></a>
-<span class="sourceLineNo">270</span>  /**<a name="line.270"></a>
-<span class="sourceLineNo">271</span>   * Called prior to enabling a table.  Called as part of enable table procedure<a name="line.271"></a>
-<span class="sourceLineNo">272</span>   * and it is async to the enable table RPC call.<a name="line.272"></a>
-<span class="sourceLineNo">273</span>   *<a name="line.273"></a>
-<span class="sourceLineNo">274</span>   * @param ctx the environment to interact with the framework and master<a name="line.274"></a>
-<span class="sourceLineNo">275</span>   * @param tableName the name of the table<a name="line.275"></a>
-<span class="sourceLineNo">276</span>   */<a name="line.276"></a>
-<span class="sourceLineNo">277</span>  default void preEnableTableAction(<a name="line.277"></a>
-<span class="sourceLineNo">278</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.278"></a>
-<span class="sourceLineNo">279</span>      final TableName tableName) throws IOException {}<a name="line.279"></a>
-<span class="sourceLineNo">280</span><a name="line.280"></a>
-<span class="sourceLineNo">281</span>  /**<a name="line.281"></a>
-<span class="sourceLineNo">282</span>   * Called after the enableTable operation has been requested.  Called as part<a name="line.282"></a>
-<span class="sourceLineNo">283</span>   * of enable table procedure and it is async to the enable table RPC call.<a name="line.283"></a>
-<span class="sourceLineNo">284</span>   *<a name="line.284"></a>
-<span class="sourceLineNo">285</span>   * @param ctx the environment to interact with the framework and master<a name="line.285"></a>
-<span class="sourceLineNo">286</span>   * @param tableName the name of the table<a name="line.286"></a>
-<span class="sourceLineNo">287</span>   */<a name="line.287"></a>
-<span class="sourceLineNo">288</span>  default void postCompletedEnableTableAction(<a name="line.288"></a>
-<span class="sourceLineNo">289</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.289"></a>
-<span class="sourceLineNo">290</span>      final TableName tableName) throws IOException {}<a name="line.290"></a>
-<span class="sourceLineNo">291</span><a name="line.291"></a>
-<span class="sourceLineNo">292</span>  /**<a name="line.292"></a>
-<span class="sourceLineNo">293</span>   * Called prior to disabling a table.  Called as part of disable table RPC<a name="line.293"></a>
-<span class="sourceLineNo">294</span>   * call.<a name="line.294"></a>
+<span class="sourceLineNo">212</span>   * @param newDescriptor after modify operation, table will have this descriptor<a name="line.212"></a>
+<span class="sourceLineNo">213</span>   * @deprecated Since 2.1. Will be removed in 3.0.<a name="line.213"></a>
+<span class="sourceLineNo">214</span>   */<a name="line.214"></a>
+<span class="sourceLineNo">215</span>  @Deprecated<a name="line.215"></a>
+<span class="sourceLineNo">216</span>  default void preModifyTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.216"></a>
+<span class="sourceLineNo">217</span>    final TableName tableName, TableDescriptor newDescriptor) throws IOException {}<a name="line.217"></a>
+<span class="sourceLineNo">218</span><a name="line.218"></a>
+<span class="sourceLineNo">219</span>  /**<a name="line.219"></a>
+<span class="sourceLineNo">220</span>   * Called prior to modifying a table's properties.  Called as part of modify<a name="line.220"></a>
+<span class="sourceLineNo">221</span>   * table RPC call.<a name="line.221"></a>
+<span class="sourceLineNo">222</span>   * @param ctx the environment to interact with the framework and master<a name="line.222"></a>
+<span class="sourceLineNo">223</span>   * @param tableName the name of the table<a name="line.223"></a>
+<span class="sourceLineNo">224</span>   * @param currentDescriptor current TableDescriptor of the table<a name="line.224"></a>
+<span class="sourceLineNo">225</span>   * @param newDescriptor after modify operation, table will have this descriptor<a name="line.225"></a>
+<span class="sourceLineNo">226</span>   */<a name="line.226"></a>
+<span class="sourceLineNo">227</span>  default void preModifyTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.227"></a>
+<span class="sourceLineNo">228</span>      final TableName tableName, TableDescriptor currentDescriptor, TableDescriptor newDescriptor)<a name="line.228"></a>
+<span class="sourceLineNo">229</span>    throws IOException {<a name="line.229"></a>
+<span class="sourceLineNo">230</span>    preModifyTable(ctx, tableName, newDescriptor);<a name="line.230"></a>
+<span class="sourceLineNo">231</span>  }<a name="line.231"></a>
+<span class="sourceLineNo">232</span><a name="line.232"></a>
+<span class="sourceLineNo">233</span>  /**<a name="line.233"></a>
+<span class="sourceLineNo">234</span>   * Called after the modifyTable operation has been requested.  Called as part<a name="line.234"></a>
+<span class="sourceLineNo">235</span>   * of modify table RPC call.<a name="line.235"></a>
+<span class="sourceLineNo">236</span>   * @param ctx the environment to interact with the framework and master<a name="line.236"></a>
+<span class="sourceLineNo">237</span>   * @param tableName the name of the table<a name="line.237"></a>
+<span class="sourceLineNo">238</span>   * @param currentDescriptor current TableDescriptor of the table<a name="line.238"></a>
+<span class="sourceLineNo">239</span>   * @deprecated Since 2.1. Will be removed in 3.0.<a name="line.239"></a>
+<span class="sourceLineNo">240</span>   */<a name="line.240"></a>
+<span class="sourceLineNo">241</span>  @Deprecated<a name="line.241"></a>
+<span class="sourceLineNo">242</span>  default void postModifyTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.242"></a>
+<span class="sourceLineNo">243</span>    final TableName tableName, TableDescriptor currentDescriptor) throws IOException {}<a name="line.243"></a>
+<span class="sourceLineNo">244</span><a name="line.244"></a>
+<span class="sourceLineNo">245</span>  /**<a name="line.245"></a>
+<span class="sourceLineNo">246</span>   * Called after the modifyTable operation has been requested.  Called as part<a name="line.246"></a>
+<span class="sourceLineNo">247</span>   * of modify table RPC call.<a name="line.247"></a>
+<span class="sourceLineNo">248</span>   * @param ctx the environment to interact with the framework and master<a name="line.248"></a>
+<span class="sourceLineNo">249</span>   * @param tableName the name of the table<a name="line.249"></a>
+<span class="sourceLineNo">250</span>   * @param oldDescriptor descriptor of table before modify operation happened<a name="line.250"></a>
+<span class="sourceLineNo">251</span>   * @param currentDescriptor current TableDescriptor of the table<a name="line.251"></a>
+<span class="sourceLineNo">252</span>   */<a name="line.252"></a>
+<span class="sourceLineNo">253</span>  default void postModifyTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.253"></a>
+<span class="sourceLineNo">254</span>      final TableName tableName, TableDescriptor oldDescriptor, TableDescriptor currentDescriptor)<a name="line.254"></a>
+<span class="sourceLineNo">255</span>    throws IOException {<a name="line.255"></a>
+<span class="sourceLineNo">256</span>    postModifyTable(ctx, tableName, currentDescriptor);<a name="line.256"></a>
+<span class="sourceLineNo">257</span>  }<a name="line.257"></a>
+<span class="sourceLineNo">258</span><a name="line.258"></a>
+<span class="sourceLineNo">259</span>  /**<a name="line.259"></a>
+<span class="sourceLineNo">260</span>   * Called prior to modifying a table's properties.  Called as part of modify<a name="line.260"></a>
+<span class="sourceLineNo">261</span>   * table procedure and it is async to the modify table RPC call.<a name="line.261"></a>
+<span class="sourceLineNo">262</span>   *<a name="line.262"></a>
+<span class="sourceLineNo">263</span>   * @param ctx the environment to interact with the framework and master<a name="line.263"></a>
+<span class="sourceLineNo">264</span>   * @param tableName the name of the table<a name="line.264"></a>
+<span class="sourceLineNo">265</span>   * @param newDescriptor after modify operation, table will have this descriptor<a name="line.265"></a>
+<span class="sourceLineNo">266</span>   * @deprecated Since 2.1. Will be removed in 3.0.<a name="line.266"></a>
+<span class="sourceLineNo">267</span>   */<a name="line.267"></a>
+<span class="sourceLineNo">268</span>  @Deprecated<a name="line.268"></a>
+<span class="sourceLineNo">269</span>  default void preModifyTableAction(<a name="line.269"></a>
+<span class="sourceLineNo">270</span>    final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.270"></a>
+<span class="sourceLineNo">271</span>    final TableName tableName,<a name="line.271"></a>
+<span class="sourceLineNo">272</span>    final TableDescriptor newDescriptor) throws IOException {}<a name="line.272"></a>
+<span class="sourceLineNo">273</span><a name="line.273"></a>
+<span class="sourceLineNo">274</span>  /**<a name="line.274"></a>
+<span class="sourceLineNo">275</span>   * Called prior to modifying a table's properties.  Called as part of modify<a name="line.275"></a>
+<span class="sourceLineNo">276</span>   * table procedure and it is async to the modify table RPC call.<a name="line.276"></a>
+<span class="sourceLineNo">277</span>   *<a name="line.277"></a>
+<span class="sourceLineNo">278</span>   * @param ctx the environment to interact with the framework and master<a name="line.278"></a>
+<span class="sourceLineNo">279</span>   * @param tableName the name of the table<a name="line.279"></a>
+<span class="sourceLineNo">280</span>   * @param currentDescriptor current TableDescriptor of the table<a name="line.280"></a>
+<span class="sourceLineNo">281</span>   * @param newDescriptor after modify operation, table will have this descriptor<a name="line.281"></a>
+<span class="sourceLineNo">282</span>   */<a name="line.282"></a>
+<span class="sourceLineNo">283</span>  default void preModifyTableAction(<a name="line.283"></a>
+<span class="sourceLineNo">284</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.284"></a>
+<span class="sourceLineNo">285</span>      final TableName tableName,<a name="line.285"></a>
+<span class="sourceLineNo">286</span>      final TableDescriptor currentDescriptor,<a name="line.286"></a>
+<span class="sourceLineNo">287</span>      final TableDescriptor newDescriptor) throws IOException {<a name="line.287"></a>
+<span class="sourceLineNo">288</span>    preModifyTableAction(ctx, tableName, newDescriptor);<a name="line.288"></a>
+<span class="sourceLineNo">289</span>  }<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
+<span class="sourceLineNo">291</span>  /**<a name="line.291"></a>
+<span class="sourceLineNo">292</span>   * Called after to modifying a table's properties.  Called as part of modify<a name="line.292"></a>
+<span class="sourceLineNo">293</span>   * table procedure and it is async to the modify table RPC call.<a name="line.293"></a>
+<span class="sourceLineNo">294</span>   *<a name="line.294"></a>
 <span class="sourceLineNo">295</span>   * @param ctx the environment to interact with the framework and master<a name="line.295"></a>
 <span class="sourceLineNo">296</span>   * @param tableName the name of the table<a name="line.296"></a>
-<span class="sourceLineNo">297</span>   */<a name="line.297"></a>
-<span class="sourceLineNo">298</span>  default void preDisableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.298"></a>
-<span class="sourceLineNo">299</span>      final TableName tableName) throws IOException {}<a name="line.299"></a>
-<span class="sourceLineNo">300</span><a name="line.300"></a>
-<span class="sourceLineNo">301</span>  /**<a name="line.301"></a>
-<span class="sourceLineNo">302</span>   * Called after the disableTable operation has been requested.  Called as part<a name="line.302"></a>
-<span class="sourceLineNo">303</span>   * of disable table RPC call.<a name="line.303"></a>
-<span class="sourceLineNo">304</span>   * @param ctx the environment to interact with the framework and master<a name="line.304"></a>
-<span class="sourceLineNo">305</span>   * @param tableName the name of the table<a name="line.305"></a>
-<span class="sourceLineNo">306</span>   */<a name="line.306"></a>
-<span class="sourceLineNo">307</span>  default void postDisableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.307"></a>
-<span class="sourceLineNo">308</span>      final TableName tableName) throws IOException {}<a name="line.308"></a>
-<span class="sourceLineNo">309</span><a name="line.309"></a>
-<span class="sourceLineNo">310</span>  /**<a name="line.310"></a>
-<span class="sourceLineNo">311</span>   * Called prior to disabling a table.  Called as part of disable table procedure<a name="line.311"></a>
-<span class="sourceLineNo">312</span>   * and it is asyn to the disable table RPC call.<a name="line.312"></a>
-<span class="sourceLineNo">313</span>   *<a name="line.313"></a>
-<span class="sourceLineNo">314</span>   * @param ctx the environment to interact with the framework and master<a name="line.314"></a>
-<span class="sourceLineNo">315</span>   * @param tableName the name of the table<a name="line.315"></a>
-<span class="sourceLineNo">316</span>   */<a name="line.316"></a>
-<span class="sourceLineNo">317</span>  default void preDisableTableAction(<a name="line.317"></a>
-<span class="sourceLineNo">318</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.318"></a>
-<span class="sourceLineNo">319</span>      final TableName tableName) throws IOException {}<a name="line.319"></a>
-<span class="sourceLineNo">320</span><a name="line.320"></a>
-<span class="sourceLineNo">321</span>  /**<a name="line.321"></a>
-<span class="sourceLineNo">322</span>   * Called after the disableTable operation has been requested.  Called as part<a name="line.322"></a>
-<span class="sourceLineNo">323</span>   * of disable table procedure and it is asyn to the disable table RPC call.<a name="line.323"></a>
-<span class="sourceLineNo">324</span>   *<a name="line.324"></a>
+<span class="sourceLineNo">297</span>   * @param currentDescriptor current TableDescriptor of the table<a name="line.297"></a>
+<span class="sourceLineNo">298</span>   * @deprecated Since 2.1. Will be removed in 3.0.<a name="line.298"></a>
+<span class="sourceLineNo">299</span>   */<a name="line.299"></a>
+<span class="sourceLineNo">300</span>  @Deprecated<a name="line.300"></a>
+<span class="sourceLineNo">301</span>  default void postCompletedModifyTableAction(<a name="line.301"></a>
+<span class="sourceLineNo">302</span>    final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.302"></a>
+<span class="sourceLineNo">303</span>    final TableName tableName,<a name="line.303"></a>
+<span class="sourceLineNo">304</span>    final TableDescriptor currentDescriptor) throws IOException {}<a name="line.304"></a>
+<span class="sourceLineNo">305</span><a name="line.305"></a>
+<span class="sourceLineNo">306</span>  /**<a name="line.306"></a>
+<span class="sourceLineNo">307</span>   * Called after to modifying a table's properties.  Called as part of modify<a name="line.307"></a>
+<span class="sourceLineNo">308</span>   * table procedure and it is async to the modify table RPC call.<a name="line.308"></a>
+<span class="sourceLineNo">309</span>   *<a name="line.309"></a>
+<span class="sourceLineNo">310</span>   * @param ctx the environment to interact with the framework and master<a name="line.310"></a>
+<span class="sourceLineNo">311</span>   * @param tableName the name of the table<a name="line.311"></a>
+<span class="sourceLineNo">312</span>   * @param oldDescriptor descriptor of table before modify operation happened<a name="line.312"></a>
+<span class="sourceLineNo">313</span>   * @param currentDescriptor current TableDescriptor of the table<a name="line.313"></a>
+<span class="sourceLineNo">314</span>   */<a name="line.314"></a>
+<span class="sourceLineNo">315</span>  default void postCompletedModifyTableAction(<a name="line.315"></a>
+<span class="sourceLineNo">316</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.316"></a>
+<span class="sourceLineNo">317</span>      final TableName tableName,<a name="line.317"></a>
+<span class="sourceLineNo">318</span>      final TableDescriptor oldDescriptor,<a name="line.318"></a>
+<span class="sourceLineNo">319</span>      final TableDescriptor currentDescriptor) throws IOException {<a name="line.319"></a>
+<span class="sourceLineNo">320</span>    postCompletedModifyTableAction(ctx, tableName, currentDescriptor);<a name="line.320"></a>
+<span class="sourceLineNo">321</span>  }<a name="line.321"></a>
+<span class="sourceLineNo">322</span><a name="line.322"></a>
+<span class="sourceLineNo">323</span>  /**<a name="line.323"></a>
+<span class="sourceLineNo">324</span>   * Called prior to enabling a table.  Called as part of enable table RPC call.<a name="line.324"></a>
 <span class="sourceLineNo">325</span>   * @param ctx the environment to interact with the framework and master<a name="line.325"></a>
 <span class="sourceLineNo">326</span>   * @param tableName the name of the table<a name="line.326"></a>
 <span class="sourceLineNo">327</span>   */<a name="line.327"></a>
-<span class="sourceLineNo">328</span>  default void postCompletedDisableTableAction(<a name="line.328"></a>
-<span class="sourceLineNo">329</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.329"></a>
-<span class="sourceLineNo">330</span>      final TableName tableName) throws IOException {}<a name="line.330"></a>
-<span class="sourceLineNo">331</span><a name="line.331"></a>
-<span class="sourceLineNo">332</span>  /**<a name="line.332"></a>
-<span class="sourceLineNo">333</span>   * Called before a abortProcedure request has been processed.<a name="line.333"></a>
+<span class="sourceLineNo">328</span>  default void preEnableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.328"></a>
+<span class="sourceLineNo">329</span>      final TableName tableName) throws IOException {}<a name="line.329"></a>
+<span class="sourceLineNo">330</span><a name="line.330"></a>
+<span class="sourceLineNo">331</span>  /**<a name="line.331"></a>
+<span class="sourceLineNo">332</span>   * Called after the enableTable operation has been requested.  Called as part<a name="line.332"></a>
+<span class="sourceLineNo">333</span>   * of enable table RPC call.<a name="line.333"></a>
 <span class="sourceLineNo">334</span>   * @param ctx the environment to interact with the framework and master<a name="line.334"></a>
-<span class="sourceLineNo">335</span>   * @param procId the Id of the procedure<a name="line.335"></a>
+<span class="sourceLineNo">335</span>   * @param tableName the name of the table<a name="line.335"></a>
 <span class="sourceLineNo">336</span>   */<a name="line.336"></a>
-<span class="sourceLineNo">337</span>  default void preAbortProcedure(<a name="line.337"></a>
-<span class="sourceLineNo">338</span>      ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx, final long procId) throws IOException {}<a name="line.338"></a>
+<span class="sourceLineNo">337</span>  default void postEnableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.337"></a>
+<span class="sourceLineNo">338</span>      final TableName tableName) throws IOException {}<a name="line.338"></a>
 <span class="sourceLineNo">339</span><a name="line.339"></a>
 <span class="sourceLineNo">340</span>  /**<a name="line.340"></a>
-<span class="sourceLineNo">341</span>   * Called after a abortProcedure request has been processed.<a name="line.341"></a>
-<span class="sourceLineNo">342</span>   * @param ctx the environment to interact with the framework and master<a name="line.342"></a>
-<span class="sourceLineNo">343</span>   */<a name="line.343"></a>
-<span class="sourceLineNo">344</span>  default void postAbortProcedure(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.344"></a>
-<span class="sourceLineNo">345</span>      throws IOException {}<a name="line.345"></a>
-<span class="sourceLineNo">346</span><a name="line.346"></a>
-<span class="sourceLineNo">347</span>  /**<a name="line.347"></a>
-<span class="sourceLineNo">348</span>   * Called before a getProcedures request has been processed.<a name="line.348"></a>
-<span class="sourceLineNo">349</span>   * @param ctx the environment to interact with the framework and master<a name="line.349"></a>
-<span class="sourceLineNo">350</span>   */<a name="line.350"></a>
-<span class="sourceLineNo">351</span>  default void preGetProcedures(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.351"></a>
-<span class="sourceLineNo">352</span>      throws IOException {}<a name="line.352"></a>
-<span class="sourceLineNo">353</span><a name="line.353"></a>
-<span class="sourceLineNo">354</span>  /**<a name="line.354"></a>
-<span class="sourceLineNo">355</span>   * Called after a getProcedures request has been processed.<a name="line.355"></a>
-<span class="sourceLineNo">356</span>   * @param ctx the environment to interact with the framework and master<a name="line.356"></a>
+<span class="sourceLineNo">341</span>   * Called prior to enabling a table.  Called as part of enable table procedure<a name="line.341"></a>
+<span class="sourceLineNo">342</span>   * and it is async to the enable table RPC call.<a name="line.342"></a>
+<span class="sourceLineNo">343</span>   *<a name="line.343"></a>
+<span class="sourceLineNo">344</span>   * @param ctx the environment to interact with the framework and master<a name="line.344"></a>
+<span class="sourceLineNo">345</span>   * @param tableName the name of the table<a name="line.345"></a>
+<span class="sourceLineNo">346</span>   */<a name="line.346"></a>
+<span class="sourceLineNo">347</span>  default void preEnableTableAction(<a name="line.347"></a>
+<span class="sourceLineNo">348</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.348"></a>
+<span class="sourceLineNo">349</span>      final TableName tableName) throws IOException {}<a name="line.349"></a>
+<span class="sourceLineNo">350</span><a name="line.350"></a>
+<span class="sourceLineNo">351</span>  /**<a name="line.351"></a>
+<span class="sourceLineNo">352</span>   * Called after the enableTable operation has been requested.  Called as part<a name="line.352"></a>
+<span class="sourceLineNo">353</span>   * of enable table procedure and it is async to the enable table RPC call.<a name="line.353"></a>
+<span class="sourceLineNo">354</span>   *<a name="line.354"></a>
+<span class="sourceLineNo">355</span>   * @param ctx the environment to interact with the framework and master<a name="line.355"></a>
+<span class="sourceLineNo">356</span>   * @param tableName the name of the table<a name="line.356"></a>
 <span class="sourceLineNo">357</span>   */<a name="line.357"></a>
-<span class="sourceLineNo">358</span>  default void postGetProcedures(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.358"></a>
-<span class="sourceLineNo">359</span>      throws IOException {}<a name="line.359"></a>
-<span class="sourceLineNo">360</span><a name="line.360"></a>
-<span class="sourceLineNo">361</span>  /**<a name="line.361"></a>
-<span class="sourceLineNo">362</span>   * Called before a getLocks request has been processed.<a name="line.362"></a>
-<span class="sourceLineNo">363</span>   * @param ctx the environment to interact with the framework and master<a name="line.363"></a>
-<span class="sourceLineNo">364</span>   * @throws IOException if something went wrong<a name="line.364"></a>
-<span class="sourceLineNo">365</span>   */<a name="line.365"></a>
-<span class="sourceLineNo">366</span>  default void preGetLocks(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.366"></a>
-<span class="sourceLineNo">367</span>      throws IOException {}<a name="line.367"></a>
-<span class="sourceLineNo">368</span><a name="line.368"></a>
-<span class="sourceLineNo">369</span>  /**<a name="line.369"></a>
-<span class="sourceLineNo">370</span>   * Called after a getLocks request has been processed.<a name="line.370"></a>
-<span class="sourceLineNo">371</span>   * @param ctx the environment to interact with the framework and master<a name="line.371"></a>
-<span class="sourceLineNo">372</span>   * @throws IOException if something went wrong<a name="line.372"></a>
-<span class="sourceLineNo">373</span>   */<a name="line.373"></a>
-<span class="sourceLineNo">374</span>  default void postGetLocks(<a name="line.374"></a>
-<span class="sourceLineNo">375</span>      ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx) throws IOException {}<a name="line.375"></a>
-<span class="sourceLineNo">376</span><a name="line.376"></a>
-<span class="sourceLineNo">377</span>  /**<a name="line.377"></a>
-<span class="sourceLineNo">378</span>   * Called prior to moving a given region from one region server to another.<a name="line.378"></a>
-<span class="sourceLineNo">379</span>   * @param ctx the environment to interact with the framework and master<a name="line.379"></a>
-<span class="sourceLineNo">380</span>   * @param region the RegionInfo<a name="line.380"></a>
-<span class="sourceLineNo">381</span>   * @param srcServer the source ServerName<a name="line.381"></a>
-<span class="sourceLineNo">382</span>   * @param destServer the destination ServerName<a name="line.382"></a>
-<span class="sourceLineNo">383</span>   */<a name="line.383"></a>
-<span class="sourceLineNo">384</span>  default void preMove(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.384"></a>
-<span class="sourceLineNo">385</span>      final RegionInfo region, final ServerName srcServer,<a name="line.385"></a>
-<span class="sourceLineNo">386</span>      final ServerName destServer)<a name="line.386"></a>
-<span class="sourceLineNo">387</span>    throws IOException {}<a name="line.387"></a>
-<span class="sourceLineNo">388</span><a name="line.388"></a>
-<span class="sourceLineNo">389</span>  /**<a name="line.389"></a>
-<span class="sourceLineNo">390</span>   * Called after the region move has been requested.<a name="line.390"></a>
-<span class="sourceLineNo">391</span>   * @param ctx the environment to interact with the framework and master<a name="line.391"></a>
-<span class="sourceLineNo">392</span>   * @param region the RegionInfo<a name="line.392"></a>
-<span class="sourceLineNo">393</span>   * @param srcServer the source ServerName<a name="line.393"></a>
-<span class="sourceLineNo">394</span>   * @param destServer the destination ServerName<a name="line.394"></a>
-<span class="sourceLineNo">395</span>   */<a name="line.395"></a>
-<span class="sourceLineNo">396</span>  default void postMove(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.396"></a>
-<span class="sourceLineNo">397</span>      final RegionInfo region, final ServerName srcServer,<a name="line.397"></a>
-<span class="sourceLineNo">398</span>      final ServerName destServer)<a name="line.398"></a>
-<span class="sourceLineNo">399</span>    throws IOException {}<a name="line.399"></a>
-<span class="sourceLineNo">400</span><a name="line.400"></a>
-<span class="sourceLineNo">401</span>  /**<a name="line.401"></a>
-<span class="sourceLineNo">402</span>   * Called prior to assigning a specific region.<a name="line.402"></a>
-<span class="sourceLineNo">403</span>   * @param ctx the environment to interact with the framework and master<a name="line.403"></a>
-<span class="sourceLineNo">404</span>   * @param regionInfo the regionInfo of the region<a name="line.404"></a>
-<span class="sourceLineNo">405</span>   */<a name="line.405"></a>
-<span class="sourceLineNo">406</span>  default void preAssign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.406"></a>
-<span class="sourceLineNo">407</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.407"></a>
-<span class="sourceLineNo">408</span><a name="line.408"></a>
-<span class="sourceLineNo">409</span>  /**<a name="line.409"></a>
-<span class="sourceLineNo">410</span>   * Called after the region assignment has been requested.<a name="line.410"></a>
-<span class="sourceLineNo">411</span>   * @param ctx the environment to interact with the framework and master<a name="line.411"></a>
-<span class="sourceLineNo">412</span>   * @param regionInfo the regionInfo of the region<a name="line.412"></a>
+<span class="sourceLineNo">358</span>  default void postCompletedEnableTableAction(<a name="line.358"></a>
+<span class="sourceLineNo">359</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.359"></a>
+<span class="sourceLineNo">360</span>      final TableName tableName) throws IOException {}<a name="line.360"></a>
+<span class="sourceLineNo">361</span><a name="line.361"></a>
+<span class="sourceLineNo">362</span>  /**<a name="line.362"></a>
+<span class="sourceLineNo">363</span>   * Called prior to disabling a table.  Called as part of disable table RPC<a name="line.363"></a>
+<span class="sourceLineNo">364</span>   * call.<a name="line.364"></a>
+<span class="sourceLineNo">365</span>   * @param ctx the environment to interact with the framework and master<a name="line.365"></a>
+<span class="sourceLineNo">366</span>   * @param tableName the name of the table<a name="line.366"></a>
+<span class="sourceLineNo">367</span>   */<a name="line.367"></a>
+<span class="sourceLineNo">368</span>  default void preDisableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.368"></a>
+<span class="sourceLineNo">369</span>      final TableName tableName) throws IOException {}<a name="line.369"></a>
+<span class="sourceLineNo">370</span><a name="line.370"></a>
+<span class="sourceLineNo">371</span>  /**<a name="line.371"></a>
+<span class="sourceLineNo">372</span>   * Called after the disableTable operation has been requested.  Called as part<a name="line.372"></a>
+<span class="sourceLineNo">373</span>   * of disable table RPC call.<a name="line.373"></a>
+<span class="sourceLineNo">374</span>   * @param ctx the environment to interact with the framework and master<a name="line.374"></a>
+<span class="sourceLineNo">375</span>   * @param tableName the name of the table<a name="line.375"></a>
+<span class="sourceLineNo">376</span>   */<a name="line.376"></a>
+<span class="sourceLineNo">377</span>  default void postDisableTable(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.377"></a>
+<span class="sourceLineNo">378</span>      final TableName tableName) throws IOException {}<a name="line.378"></a>
+<span class="sourceLineNo">379</span><a name="line.379"></a>
+<span class="sourceLineNo">380</span>  /**<a name="line.380"></a>
+<span class="sourceLineNo">381</span>   * Called prior to disabling a table.  Called as part of disable table procedure<a name="line.381"></a>
+<span class="sourceLineNo">382</span>   * and it is asyn to the disable table RPC call.<a name="line.382"></a>
+<span class="sourceLineNo">383</span>   *<a name="line.383"></a>
+<span class="sourceLineNo">384</span>   * @param ctx the environment to interact with the framework and master<a name="line.384"></a>
+<span class="sourceLineNo">385</span>   * @param tableName the name of the table<a name="line.385"></a>
+<span class="sourceLineNo">386</span>   */<a name="line.386"></a>
+<span class="sourceLineNo">387</span>  default void preDisableTableAction(<a name="line.387"></a>
+<span class="sourceLineNo">388</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.388"></a>
+<span class="sourceLineNo">389</span>      final TableName tableName) throws IOException {}<a name="line.389"></a>
+<span class="sourceLineNo">390</span><a name="line.390"></a>
+<span class="sourceLineNo">391</span>  /**<a name="line.391"></a>
+<span class="sourceLineNo">392</span>   * Called after the disableTable operation has been requested.  Called as part<a name="line.392"></a>
+<span class="sourceLineNo">393</span>   * of disable table procedure and it is asyn to the disable table RPC call.<a name="line.393"></a>
+<span class="sourceLineNo">394</span>   *<a name="line.394"></a>
+<span class="sourceLineNo">395</span>   * @param ctx the environment to interact with the framework and master<a name="line.395"></a>
+<span class="sourceLineNo">396</span>   * @param tableName the name of the table<a name="line.396"></a>
+<span class="sourceLineNo">397</span>   */<a name="line.397"></a>
+<span class="sourceLineNo">398</span>  default void postCompletedDisableTableAction(<a name="line.398"></a>
+<span class="sourceLineNo">399</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.399"></a>
+<span class="sourceLineNo">400</span>      final TableName tableName) throws IOException {}<a name="line.400"></a>
+<span class="sourceLineNo">401</span><a name="line.401"></a>
+<span class="sourceLineNo">402</span>  /**<a name="line.402"></a>
+<span class="sourceLineNo">403</span>   * Called before a abortProcedure request has been processed.<a name="line.403"></a>
+<span class="sourceLineNo">404</span>   * @param ctx the environment to interact with the framework and master<a name="line.404"></a>
+<span class="sourceLineNo">405</span>   * @param procId the Id of the procedure<a name="line.405"></a>
+<span class="sourceLineNo">406</span>   */<a name="line.406"></a>
+<span class="sourceLineNo">407</span>  default void preAbortProcedure(<a name="line.407"></a>
+<span class="sourceLineNo">408</span>      ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx, final long procId) throws IOException {}<a name="line.408"></a>
+<span class="sourceLineNo">409</span><a name="line.409"></a>
+<span class="sourceLineNo">410</span>  /**<a name="line.410"></a>
+<span class="sourceLineNo">411</span>   * Called after a abortProcedure request has been processed.<a name="line.411"></a>
+<span class="sourceLineNo">412</span>   * @param ctx the environment to interact with the framework and master<a name="line.412"></a>
 <span class="sourceLineNo">413</span>   */<a name="line.413"></a>
-<span class="sourceLineNo">414</span>  default void postAssign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.414"></a>
-<span class="sourceLineNo">415</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.415"></a>
+<span class="sourceLineNo">414</span>  default void postAbortProcedure(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.414"></a>
+<span class="sourceLineNo">415</span>      throws IOException {}<a name="line.415"></a>
 <span class="sourceLineNo">416</span><a name="line.416"></a>
 <span class="sourceLineNo">417</span>  /**<a name="line.417"></a>
-<span class="sourceLineNo">418</span>   * Called prior to unassigning a given region.<a name="line.418"></a>
+<span class="sourceLineNo">418</span>   * Called before a getProcedures request has been processed.<a name="line.418"></a>
 <span class="sourceLineNo">419</span>   * @param ctx the environment to interact with the framework and master<a name="line.419"></a>
-<span class="sourceLineNo">420</span>   * @param regionInfo<a name="line.420"></a>
-<span class="sourceLineNo">421</span>   * @param force whether to force unassignment or not<a name="line.421"></a>
-<span class="sourceLineNo">422</span>   */<a name="line.422"></a>
-<span class="sourceLineNo">423</span>  default void preUnassign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.423"></a>
-<span class="sourceLineNo">424</span>      final RegionInfo regionInfo, final boolean force) throws IOException {}<a name="line.424"></a>
-<span class="sourceLineNo">425</span><a name="line.425"></a>
-<span class="sourceLineNo">426</span>  /**<a name="line.426"></a>
-<span class="sourceLineNo">427</span>   * Called after the region unassignment has been requested.<a name="line.427"></a>
-<span class="sourceLineNo">428</span>   * @param ctx the environment to interact with the framework and master<a name="line.428"></a>
-<span class="sourceLineNo">429</span>   * @param regionInfo<a name="line.429"></a>
-<span class="sourceLineNo">430</span>   * @param force whether to force unassignment or not<a name="line.430"></a>
-<span class="sourceLineNo">431</span>   */<a name="line.431"></a>
-<span class="sourceLineNo">432</span>  default void postUnassign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.432"></a>
-<span class="sourceLineNo">433</span>      final RegionInfo regionInfo, final boolean force) throws IOException {}<a name="line.433"></a>
-<span class="sourceLineNo">434</span><a name="line.434"></a>
-<span class="sourceLineNo">435</span>  /**<a name="line.435"></a>
-<span class="sourceLineNo">436</span>   * Called prior to marking a given region as offline.<a name="line.436"></a>
-<span class="sourceLineNo">437</span>   * @param ctx the environment to interact with the framework and master<a name="line.437"></a>
-<span class="sourceLineNo">438</span>   * @param regionInfo<a name="line.438"></a>
-<span class="sourceLineNo">439</span>   */<a name="line.439"></a>
-<span class="sourceLineNo">440</span>  default void preRegionOffline(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.440"></a>
-<span class="sourceLineNo">441</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.441"></a>
-<span class="sourceLineNo">442</span><a name="line.442"></a>
-<span class="sourceLineNo">443</span>  /**<a name="line.443"></a>
-<span class="sourceLineNo">444</span>   * Called after the region has been marked offline.<a name="line.444"></a>
-<span class="sourceLineNo">445</span>   * @param ctx the environment to interact with the framework and master<a name="line.445"></a>
-<span class="sourceLineNo">446</span>   * @param regionInfo<a name="line.446"></a>
-<span class="sourceLineNo">447</span>   */<a name="line.447"></a>
-<span class="sourceLineNo">448</span>  default void postRegionOffline(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.448"></a>
-<span class="sourceLineNo">449</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.449"></a>
-<span class="sourceLineNo">450</span><a name="line.450"></a>
-<span class="sourceLineNo">451</span>  /**<a name="line.451"></a>
-<span class="sourceLineNo">452</span>   * Called prior to requesting rebalancing of the cluster regions, though after<a name="line.452"></a>
-<span class="sourceLineNo">453</span>   * the initial checks for regions in transition and the balance switch flag.<a name="line.453"></a>
-<span class="sourceLineNo">454</span>   * @param ctx the environment to interact with the framework and master<a name="line.454"></a>
-<span class="sourceLineNo">455</span>   */<a name="line.455"></a>
-<span class="sourceLineNo">456</span>  default void preBalance(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.456"></a>
-<span class="sourceLineNo">457</span>      throws IOException {}<a name="line.457"></a>
+<span class="sourceLineNo">420</span>   */<a name="line.420"></a>
+<span class="sourceLineNo">421</span>  default void preGetProcedures(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.421"></a>
+<span class="sourceLineNo">422</span>      throws IOException {}<a name="line.422"></a>
+<span class="sourceLineNo">423</span><a name="line.423"></a>
+<span class="sourceLineNo">424</span>  /**<a name="line.424"></a>
+<span class="sourceLineNo">425</span>   * Called after a getProcedures request has been processed.<a name="line.425"></a>
+<span class="sourceLineNo">426</span>   * @param ctx the environment to interact with the framework and master<a name="line.426"></a>
+<span class="sourceLineNo">427</span>   */<a name="line.427"></a>
+<span class="sourceLineNo">428</span>  default void postGetProcedures(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.428"></a>
+<span class="sourceLineNo">429</span>      throws IOException {}<a name="line.429"></a>
+<span class="sourceLineNo">430</span><a name="line.430"></a>
+<span class="sourceLineNo">431</span>  /**<a name="line.431"></a>
+<span class="sourceLineNo">432</span>   * Called before a getLocks request has been processed.<a name="line.432"></a>
+<span class="sourceLineNo">433</span>   * @param ctx the environment to interact with the framework and master<a name="line.433"></a>
+<span class="sourceLineNo">434</span>   * @throws IOException if something went wrong<a name="line.434"></a>
+<span class="sourceLineNo">435</span>   */<a name="line.435"></a>
+<span class="sourceLineNo">436</span>  default void preGetLocks(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.436"></a>
+<span class="sourceLineNo">437</span>      throws IOException {}<a name="line.437"></a>
+<span class="sourceLineNo">438</span><a name="line.438"></a>
+<span class="sourceLineNo">439</span>  /**<a name="line.439"></a>
+<span class="sourceLineNo">440</span>   * Called after a getLocks request has been processed.<a name="line.440"></a>
+<span class="sourceLineNo">441</span>   * @param ctx the environment to interact with the framework and master<a name="line.441"></a>
+<span class="sourceLineNo">442</span>   * @throws IOException if something went wrong<a name="line.442"></a>
+<span class="sourceLineNo">443</span>   */<a name="line.443"></a>
+<span class="sourceLineNo">444</span>  default void postGetLocks(<a name="line.444"></a>
+<span class="sourceLineNo">445</span>      ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx) throws IOException {}<a name="line.445"></a>
+<span class="sourceLineNo">446</span><a name="line.446"></a>
+<span class="sourceLineNo">447</span>  /**<a name="line.447"></a>
+<span class="sourceLineNo">448</span>   * Called prior to moving a given region from one region server to another.<a name="line.448"></a>
+<span class="sourceLineNo">449</span>   * @param ctx the environment to interact with the framework and master<a name="line.449"></a>
+<span class="sourceLineNo">450</span>   * @param region the RegionInfo<a name="line.450"></a>
+<span class="sourceLineNo">451</span>   * @param srcServer the source ServerName<a name="line.451"></a>
+<span class="sourceLineNo">452</span>   * @param destServer the destination ServerName<a name="line.452"></a>
+<span class="sourceLineNo">453</span>   */<a name="line.453"></a>
+<span class="sourceLineNo">454</span>  default void preMove(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.454"></a>
+<span class="sourceLineNo">455</span>      final RegionInfo region, final ServerName srcServer,<a name="line.455"></a>
+<span class="sourceLineNo">456</span>      final ServerName destServer)<a name="line.456"></a>
+<span class="sourceLineNo">457</span>    throws IOException {}<a name="line.457"></a>
 <span class="sourceLineNo">458</span><a name="line.458"></a>
 <span class="sourceLineNo">459</span>  /**<a name="line.459"></a>
-<span class="sourceLineNo">460</span>   * Called after the balancing plan has been submitted.<a name="line.460"></a>
+<span class="sourceLineNo">460</span>   * Called after the region move has been requested.<a name="line.460"></a>
 <span class="sourceLineNo">461</span>   * @param ctx the environment to interact with the framework and master<a name="line.461"></a>
-<span class="sourceLineNo">462</span>   * @param plans the RegionPlans which master has executed. RegionPlan serves as hint<a name="line.462"></a>
-<span class="sourceLineNo">463</span>   * as for the final destination for the underlying region but may not represent the<a name="line.463"></a>
-<span class="sourceLineNo">464</span>   * final state of assignment<a name="line.464"></a>
+<span class="sourceLineNo">462</span>   * @param region the RegionInfo<a name="line.462"></a>
+<span class="sourceLineNo">463</span>   * @param srcServer the source ServerName<a name="line.463"></a>
+<span class="sourceLineNo">464</span>   * @param destServer the destination ServerName<a name="line.464"></a>
 <span class="sourceLineNo">465</span>   */<a name="line.465"></a>
-<span class="sourceLineNo">466</span>  default void postBalance(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx, List&lt;RegionPlan&gt; plans)<a name="line.466"></a>
-<span class="sourceLineNo">467</span>      throws IOException {}<a name="line.467"></a>
-<span class="sourceLineNo">468</span><a name="line.468"></a>
-<span class="sourceLineNo">469</span>  /**<a name="line.469"></a>
-<span class="sourceLineNo">470</span>   * Called prior to setting split / merge switch<a name="line.470"></a>
-<span class="sourceLineNo">471</span>   * Supports Coprocessor 'bypass'.<a name="line.471"></a>
-<span class="sourceLineNo">472</span>   * @param ctx the coprocessor instance's environment<a name="line.472"></a>
-<span class="sourceLineNo">473</span>   * @param newValue the new value submitted in the call<a name="line.473"></a>
-<span class="sourceLineNo">474</span>   * @param switchType type of switch<a name="line.474"></a>
+<span class="sourceLineNo">466</span>  default void postMove(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.466"></a>
+<span class="sourceLineNo">467</span>      final RegionInfo region, final ServerName srcServer,<a name="line.467"></a>
+<span class="sourceLineNo">468</span>      final ServerName destServer)<a name="line.468"></a>
+<span class="sourceLineNo">469</span>    throws IOException {}<a name="line.469"></a>
+<span class="sourceLineNo">470</span><a name="line.470"></a>
+<span class="sourceLineNo">471</span>  /**<a name="line.471"></a>
+<span class="sourceLineNo">472</span>   * Called prior to assigning a specific region.<a name="line.472"></a>
+<span class="sourceLineNo">473</span>   * @param ctx the environment to interact with the framework and master<a name="line.473"></a>
+<span class="sourceLineNo">474</span>   * @param regionInfo the regionInfo of the region<a name="line.474"></a>
 <span class="sourceLineNo">475</span>   */<a name="line.475"></a>
-<span class="sourceLineNo">476</span>  default void preSetSplitOrMergeEnabled(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.476"></a>
-<span class="sourceLineNo">477</span>      final boolean newValue, final MasterSwitchType switchType) throws IOException {}<a name="line.477"></a>
+<span class="sourceLineNo">476</span>  default void preAssign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.476"></a>
+<span class="sourceLineNo">477</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.477"></a>
 <span class="sourceLineNo">478</span><a name="line.478"></a>
 <span class="sourceLineNo">479</span>  /**<a name="line.479"></a>
-<span class="sourceLineNo">480</span>   * Called after setting split / merge switch<a name="line.480"></a>
-<span class="sourceLineNo">481</span>   * @param ctx the coprocessor instance's environment<a name="line.481"></a>
-<span class="sourceLineNo">482</span>   * @param newValue the new value submitted in the call<a name="line.482"></a>
-<span class="sourceLineNo">483</span>   * @param switchType type of switch<a name="line.483"></a>
-<span class="sourceLineNo">484</span>   */<a name="line.484"></a>
-<span class="sourceLineNo">485</span>  default void postSetSplitOrMergeEnabled(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.485"></a>
-<span class="sourceLineNo">486</span>      final boolean newValue, final MasterSwitchType switchType) throws IOException {}<a name="line.486"></a>
-<span class="sourceLineNo">487</span><a name="line.487"></a>
-<span class="sourceLineNo">488</span>  /**<a name="line.488"></a>
-<span class="sourceLineNo">489</span>   * Called before the split region procedure is called.<a name="line.489"></a>
-<span class="sourceLineNo">490</span>   * @param c the environment to interact with the framework and master<a name="line.490"></a>
-<span class="sourceLineNo">491</span>   * @param tableName the table where the region belongs to<a name="line.491"></a>
-<span class="sourceLineNo">492</span>   * @param splitRow split point<a name="line.492"></a>
-<span class="sourceLineNo">493</span>   */<a name="line.493"></a>
-<span class="sourceLineNo">494</span>  default void preSplitRegion(<a name="line.494"></a>
-<span class="sourceLineNo">495</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; c,<a name="line.495"></a>
-<span class="sourceLineNo">496</span>      final TableName tableName,<a name="line.496"></a>
-<span class="sourceLineNo">497</span>      final byte[] splitRow)<a name="line.497"></a>
-<span class="sourceLineNo">498</span>      throws IOException {}<a name="line.498"></a>
-<span class="sourceLineNo">499</span><a name="line.499"></a>
-<span class="sourceLineNo">500</span>  /**<a name="line.500"></a>
-<span class="sourceLineNo">501</span>   * Called before the region is split.<a name="line.501"></a>
-<span class="sourceLineNo">502</span>   * @param c the environment to interact with the framework and master<a name="line.502"></a>
-<span class="sourceLineNo">503</span>   * @param tableName the table where the region belongs to<a name="line.503"></a>
-<span class="sourceLineNo">504</span>   * @param splitRow split point<a name="line.504"></a>
-<span class="sourceLineNo">505</span>   */<a name="line.505"></a>
-<span class="sourceLineNo">506</span>  default void preSplitRegionAction(<a name="line.506"></a>
-<span class="sourceLineNo">507</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; c,<a name="line.507"></a>
-<span class="sourceLineNo">508</span>      final TableName tableName,<a name="line.508"></a>
-<span class="sourceLineNo">509</span>      final byte[] splitRow)<a name="line.509"></a>
-<span class="sourceLineNo">510</span>      throws IOException {}<a name="line.510"></a>
-<span class="sourceLineNo">511</span><a name="line.511"></a>
-<span class="sourceLineNo">512</span>  /**<a name="line.512"></a>
-<span class="sourceLineNo">513</span>   * Called after the region is split.<a name="line.513"></a>
-<span class="sourceLineNo">514</span>   * @param c the environment to interact with the framework and master<a name="line.514"></a>
-<span class="sourceLineNo">515</span>   * @param regionInfoA the left daughter region<a name="line.515"></a>
-<span class="sourceLineNo">516</span>   * @param regionInfoB the right daughter region<a name="line.516"></a>
+<span class="sourceLineNo">480</span>   * Called after the region assignment has been requested.<a name="line.480"></a>
+<span class="sourceLineNo">481</span>   * @param ctx the environment to interact with the framework and master<a name="line.481"></a>
+<span class="sourceLineNo">482</span>   * @param regionInfo the regionInfo of the region<a name="line.482"></a>
+<span class="sourceLineNo">483</span>   */<a name="line.483"></a>
+<span class="sourceLineNo">484</span>  default void postAssign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.484"></a>
+<span class="sourceLineNo">485</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.485"></a>
+<span class="sourceLineNo">486</span><a name="line.486"></a>
+<span class="sourceLineNo">487</span>  /**<a name="line.487"></a>
+<span class="sourceLineNo">488</span>   * Called prior to unassigning a given region.<a name="line.488"></a>
+<span class="sourceLineNo">489</span>   * @param ctx the environment to interact with the framework and master<a name="line.489"></a>
+<span class="sourceLineNo">490</span>   * @param regionInfo<a name="line.490"></a>
+<span class="sourceLineNo">491</span>   * @param force whether to force unassignment or not<a name="line.491"></a>
+<span class="sourceLineNo">492</span>   */<a name="line.492"></a>
+<span class="sourceLineNo">493</span>  default void preUnassign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.493"></a>
+<span class="sourceLineNo">494</span>      final RegionInfo regionInfo, final boolean force) throws IOException {}<a name="line.494"></a>
+<span class="sourceLineNo">495</span><a name="line.495"></a>
+<span class="sourceLineNo">496</span>  /**<a name="line.496"></a>
+<span class="sourceLineNo">497</span>   * Called after the region unassignment has been requested.<a name="line.497"></a>
+<span class="sourceLineNo">498</span>   * @param ctx the environment to interact with the framework and master<a name="line.498"></a>
+<span class="sourceLineNo">499</span>   * @param regionInfo<a name="line.499"></a>
+<span class="sourceLineNo">500</span>   * @param force whether to force unassignment or not<a name="line.500"></a>
+<span class="sourceLineNo">501</span>   */<a name="line.501"></a>
+<span class="sourceLineNo">502</span>  default void postUnassign(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.502"></a>
+<span class="sourceLineNo">503</span>      final RegionInfo regionInfo, final boolean force) throws IOException {}<a name="line.503"></a>
+<span class="sourceLineNo">504</span><a name="line.504"></a>
+<span class="sourceLineNo">505</span>  /**<a name="line.505"></a>
+<span class="sourceLineNo">506</span>   * Called prior to marking a given region as offline.<a name="line.506"></a>
+<span class="sourceLineNo">507</span>   * @param ctx the environment to interact with the framework and master<a name="line.507"></a>
+<span class="sourceLineNo">508</span>   * @param regionInfo<a name="line.508"></a>
+<span class="sourceLineNo">509</span>   */<a name="line.509"></a>
+<span class="sourceLineNo">510</span>  default void preRegionOffline(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.510"></a>
+<span class="sourceLineNo">511</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.511"></a>
+<span class="sourceLineNo">512</span><a name="line.512"></a>
+<span class="sourceLineNo">513</span>  /**<a name="line.513"></a>
+<span class="sourceLineNo">514</span>   * Called after the region has been marked offline.<a name="line.514"></a>
+<span class="sourceLineNo">515</span>   * @param ctx the environment to interact with the framework and master<a name="line.515"></a>
+<span class="sourceLineNo">516</span>   * @param regionInfo<a name="line.516"></a>
 <span class="sourceLineNo">517</span>   */<a name="line.517"></a>
-<span class="sourceLineNo">518</span>  default void postCompletedSplitRegionAction(<a name="line.518"></a>
-<span class="sourceLineNo">519</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; c,<a name="line.519"></a>
-<span class="sourceLineNo">520</span>      final RegionInfo regionInfoA,<a name="line.520"></a>
-<span class="sourceLineNo">521</span>      final RegionInfo regionInfoB) throws IOException {}<a name="line.521"></a>
-<span class="sourceLineNo">522</span><a name="line.522"></a>
-<span class="sourceLineNo">523</span>  /**<a name="line.523"></a>
-<span class="sourceLineNo">524</span>   * This will be called before update META step as part of split transaction.<a name="line.524"></a>
-<span class="sourceLineNo">525</span>   * @param ctx the environment to interact with the framework and master<a name="line.525"></a>
-<span class="sourceLineNo">526</span>   * @param splitKey<a name="line.526"></a>
-<span class="sourceLineNo">527</span>   * @param metaEntries<a name="line.527"></a>
-<span class="sourceLineNo">528</span>   */<a name="line.528"></a>
-<span class="sourceLineNo">529</span>  default void preSplitRegionBeforeMETAAction(<a name="line.529"></a>
-<span class="sourceLineNo">530</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.530"></a>
-<span class="sourceLineNo">531</span>      final byte[] splitKey,<a name="line.531"></a>
-<span class="sourceLineNo">532</span>      final List&lt;Mutation&gt; metaEntries) throws IOException {}<a name="line.532"></a>
-<span class="sourceLineNo">533</span><a name="line.533"></a>
-<span class="sourceLineNo">534</span><a name="line.534"></a>
-<span class="sourceLineNo">535</span>  /**<a name="line.535"></a>
-<span class="sourceLineNo">536</span>   * This will be called after update META step as part of split transaction<a name="line.536"></a>
-<span class="sourceLineNo">537</span>   * @param ctx the environment to interact with the framework and master<a name="line.537"></a>
-<span class="sourceLineNo">538</span>   */<a name="line.538"></a>
-<span class="sourceLineNo">539</span>  default void preSplitRegionAfterMETAAction(<a name="line.539"></a>
-<span class="sourceLineNo">540</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.540"></a>
-<span class="sourceLineNo">541</span>      throws IOException {}<a name="line.541"></a>
-<span class="sourceLineNo">542</span><a name="line.542"></a>
-<span class="sourceLineNo">543</span>  /**<a name="line.543"></a>
-<span class="sourceLineNo">544</span>   * This will be called after the roll back of the split region is completed<a name="line.544"></a>
-<span class="sourceLineNo">545</span>   * @param ctx the environment to interact with the framework and master<a name="line.545"></a>
-<span class="sourceLineNo">546</span>   */<a name="line.546"></a>
-<span class="sourceLineNo">547</span>  default void postRollBackSplitRegionAction(<a name="line.547"></a>
-<span class="sourceLineNo">548</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.548"></a>
-<span class="sourceLineNo">549</span>      throws IOException {}<a name="line.549"></a>
-<span class="sourceLineNo">550</span><a name="line.550"></a>
-<span class="sourceLineNo">551</span>  /**<a name="line.551"></a>
-<span class="sourceLineNo">552</span>   * Called before the regions merge.<a name="line.552"></a>
-<span class="sourceLineNo">553</span>   * @param ctx the environment to interact with the framework and master<a name="line.553"></a>
+<span class="sourceLineNo">518</span>  default void postRegionOffline(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.518"></a>
+<span class="sourceLineNo">519</span>      final RegionInfo regionInfo) throws IOException {}<a name="line.519"></a>
+<span class="sourceLineNo">520</span><a name="line.520"></a>
+<span class="sourceLineNo">521</span>  /**<a name="line.521"></a>
+<span class="sourceLineNo">522</span>   * Called prior to requesting rebalancing of the cluster regions, though after<a name="line.522"></a>
+<span class="sourceLineNo">523</span>   * the initial checks for regions in transition and the balance switch flag.<a name="line.523"></a>
+<span class="sourceLineNo">524</span>   * @param ctx the environment to interact with the framework and master<a name="line.524"></a>
+<span class="sourceLineNo">525</span>   */<a name="line.525"></a>
+<span class="sourceLineNo">526</span>  default void preBalance(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.526"></a>
+<span class="sourceLineNo">527</span>      throws IOException {}<a name="line.527"></a>
+<span class="sourceLineNo">528</span><a name="line.528"></a>
+<span class="sourceLineNo">529</span>  /**<a name="line.529"></a>
+<span class="sourceLineNo">530</span>   * Called after the balancing plan has been submitted.<a name="line.530"></a>
+<span class="sourceLineNo">531</span>   * @param ctx the environment to interact with the framework and master<a name="line.531"></a>
+<span class="sourceLineNo">532</span>   * @param plans the RegionPlans which master has executed. RegionPlan serves as hint<a name="line.532"></a>
+<span class="sourceLineNo">533</span>   * as for the final destination for the underlying region but may not represent the<a name="line.533"></a>
+<span class="sourceLineNo">534</span>   * final state of assignment<a name="line.534"></a>
+<span class="sourceLineNo">535</span>   */<a name="line.535"></a>
+<span class="sourceLineNo">536</span>  default void postBalance(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx, List&lt;RegionPlan&gt; plans)<a name="line.536"></a>
+<span class="sourceLineNo">537</span>      throws IOException {}<a name="line.537"></a>
+<span class="sourceLineNo">538</span><a name="line.538"></a>
+<span class="sourceLineNo">539</span>  /**<a name="line.539"></a>
+<span class="sourceLineNo">540</span>   * Called prior to setting split / merge switch<a name="line.540"></a>
+<span class="sourceLineNo">541</span>   * Supports Coprocessor 'bypass'.<a name="line.541"></a>
+<span class="sourceLineNo">542</span>   * @param ctx the coprocessor instance's environment<a name="line.542"></a>
+<span class="sourceLineNo">543</span>   * @param newValue the new value submitted in the call<a name="line.543"></a>
+<span class="sourceLineNo">544</span>   * @param switchType type of switch<a name="line.544"></a>
+<span class="sourceLineNo">545</span>   */<a name="line.545"></a>
+<span class="sourceLineNo">546</span>  default void preSetSplitOrMergeEnabled(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.546"></a>
+<span class="sourceLineNo">547</span>      final boolean newValue, final MasterSwitchType switchType) throws IOException {}<a name="line.547"></a>
+<span class="sourceLineNo">548</span><a name="line.548"></a>
+<span class="sourceLineNo">549</span>  /**<a name="line.549"></a>
+<span class="sourceLineNo">550</span>   * Called after setting split / merge switch<a name="line.550"></a>
+<span class="sourceLineNo">551</span>   * @param ctx the coprocessor instance's environment<a name="line.551"></a>
+<span class="sourceLineNo">552</span>   * @param newValue the new value submitted in the call<a name="line.552"></a>
+<span class="sourceLineNo">553</span>   * @param switchType type of switch<a name="line.553"></a>
 <span class="sourceLineNo">554</span>   */<a name="line.554"></a>
-<span class="sourceLineNo">555</span>  default void preMergeRegionsAction(<a name="line.555"></a>
-<span class="sourceLineNo">556</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.556"></a>
-<span class="sourceLineNo">557</span>      final RegionInfo[] regionsToMerge) throws IOException {}<a name="line.557"></a>
-<span class="sourceLineNo">558</span><a name="line.558"></a>
-<span class="sourceLineNo">559</span>  /**<a name="line.559"></a>
-<span class="sourceLineNo">560</span>   * called after the regions merge.<a name="line.560"></a>
-<span class="sourceLineNo">561</span>   * @param ctx the environment to interact with the framework and master<a name="line.561"></a>
-<span class="sourceLineNo">562</span>   */<a name="line.562"></a>
-<span class="sourceLineNo">563</span>  default void postCompletedMergeRegionsAction(<a name="line.563"></a>
-<span class="sourceLineNo">564</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.564"></a>
-<span class="sourceLineNo">565</span>      final RegionInfo[] regionsToMerge,<a name="line.565"></a>
-<span class="sourceLineNo">566</span>      final RegionInfo mergedRegion) throws IOException {}<a name="line.566"></a>
-<span class="sourceLineNo">567</span><a name="line.567"></a>
-<span class="sourceLineNo">568</span>  /**<a name="line.568"></a>
-<span class="sourceLineNo">569</span>   * This will be called before update META step as part of regions merge transaction.<a name="line.569"></a>
-<span class="sourceLineNo">570</span>   * @param ctx the environment to interact with the framework and master<a name="line.570"></a>
-<span class="sourceLineNo">571</span>   * @param metaEntries mutations to execute on hbase:meta atomically with regions merge updates.<a name="line.571"></a>
-<span class="sourceLineNo">572</span>   *        Any puts or deletes to execute on hbase:meta can be added to the mutations.<a name="line.572"></a>
-<span class="sourceLineNo">573</span>   */<a name="line.573"></a>
-<span class="sourceLineNo">574</span>  default void preMergeRegionsCommitAction(<a name="line.574"></a>
-<span class="sourceLineNo">575</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.575"></a>
-<span class="sourceLineNo">576</span>      final RegionInfo[] regionsToMerge,<a name="line.576"></a>
-<span class="sourceLineNo">577</span>      @MetaMutationAnnotation List&lt;Mutation&gt; metaEntries) throws IOException {}<a name="line.577"></a>
-<span class="sourceLineNo">578</span><a name="line.578"></a>
-<span class="sourceLineNo">579</span>  /**<a name="line.579"></a>
-<span class="sourceLineNo">580</span>   * This will be called after META step as part of regions merge transaction.<a name="line.580"></a>
-<span class="sourceLineNo">581</span>   * @param ctx the environment to interact with the framework and master<a name="line.581"></a>
-<span class="sourceLineNo">582</span>   */<a name="line.582"></a>
-<span class="sourceLineNo">583</span>  default void postMergeRegionsCommitAction(<a name="line.583"></a>
-<span class="sourceLineNo">584</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.584"></a>
-<span class="sourceLineNo">585</span>      final RegionInfo[] regionsToMerge,<a name="line.585"></a>
-<span class="sourceLineNo">586</span>      final RegionInfo mergedRegion) throws IOException {}<a name="line.586"></a>
-<span class="sourceLineNo">587</span><a name="line.587"></a>
-<span class="sourceLineNo">588</span>  /**<a name="line.588"></a>
-<span class="sourceLineNo">589</span>   * This will be called after the roll back of the regions merge.<a name="line.589"></a>
-<span class="sourceLineNo">590</span>   * @param ctx the environment to interact with the framework and master<a name="line.590"></a>
-<span class="sourceLineNo">591</span>   */<a name="line.591"></a>
-<span class="sourceLineNo">592</span>  default void postRollBackMergeRegionsAction(<a name="line.592"></a>
-<span class="sourceLineNo">593</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.593"></a>
-<span class="sourceLineNo">594</span>      final RegionInfo[] regionsToMerge) throws IOException {}<a name="line.594"></a>
-<span class="sourceLineNo">595</span><a name="line.595"></a>
-<span class="sourceLineNo">596</span>  /**<a name="line.596"></a>
-<span class="sourceLineNo">597</span>   * Called prior to modifying the flag used to enable/disable region balancing.<a name="line.597"></a>
-<span class="sourceLineNo">598</span>   * @param ctx the coprocessor instance's environment<a name="line.598"></a>
-<span class="sourceLineNo">599</span>   */<a name="line.599"></a>
-<span class="sourceLineNo">600</span>  default void preBalanceSwitch(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.600"></a>
-<span class="sourceLineNo">601</span>      final boolean newValue) throws IOException {}<a name="line.601"></a>
-<span class="sourceLineNo">602</span><a name="line.602"></a>
-<span class="sourceLineNo">603</span>  /**<a name="line.603"></a>
-<span class="sourceLineNo">604</span>   * Called after the flag to enable/disable balancing has changed.<a name="line.604"></a>
-<span class="sourceLineNo">605</span>   * @param ctx the coprocessor instance's environment<a name="line.605"></a>
-<span class="sourceLineNo">606</span>   * @param oldValue the previously set balanceSwitch value<a name="line.606"></a>
-<span class="sourceLineNo">607</span>   * @param newValue the newly set balanceSwitch value<a name="line.607"></a>
+<span class="sourceLineNo">555</span>  default void postSetSplitOrMergeEnabled(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.555"></a>
+<span class="sourceLineNo">556</span>      final boolean newValue, final MasterSwitchType switchType) throws IOException {}<a name="line.556"></a>
+<span class="sourceLineNo">557</span><a name="line.557"></a>
+<span class="sourceLineNo">558</span>  /**<a name="line.558"></a>
+<span class="sourceLineNo">559</span>   * Called before the split region procedure is called.<a name="line.559"></a>
+<span class="sourceLineNo">560</span>   * @param c the environment to interact with the framework and master<a name="line.560"></a>
+<span class="sourceLineNo">561</span>   * @param tableName the table where the region belongs to<a name="line.561"></a>
+<span class="sourceLineNo">562</span>   * @param splitRow split point<a name="line.562"></a>
+<span class="sourceLineNo">563</span>   */<a name="line.563"></a>
+<span class="sourceLineNo">564</span>  default void preSplitRegion(<a name="line.564"></a>
+<span class="sourceLineNo">565</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; c,<a name="line.565"></a>
+<span class="sourceLineNo">566</span>      final TableName tableName,<a name="line.566"></a>
+<span class="sourceLineNo">567</span>      final byte[] splitRow)<a name="line.567"></a>
+<span class="sourceLineNo">568</span>      throws IOException {}<a name="line.568"></a>
+<span class="sourceLineNo">569</span><a name="line.569"></a>
+<span class="sourceLineNo">570</span>  /**<a name="line.570"></a>
+<span class="sourceLineNo">571</span>   * Called before the region is split.<a name="line.571"></a>
+<span class="sourceLineNo">572</span>   * @param c the environment to interact with the framework and master<a name="line.572"></a>
+<span class="sourceLineNo">573</span>   * @param tableName the table where the region belongs to<a name="line.573"></a>
+<span class="sourceLineNo">574</span>   * @param splitRow split point<a name="line.574"></a>
+<span class="sourceLineNo">575</span>   */<a name="line.575"></a>
+<span class="sourceLineNo">576</span>  default void preSplitRegionAction(<a name="line.576"></a>
+<span class="sourceLineNo">577</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; c,<a name="line.577"></a>
+<span class="sourceLineNo">578</span>      final TableName tableName,<a name="line.578"></a>
+<span class="sourceLineNo">579</span>      final byte[] splitRow)<a name="line.579"></a>
+<span class="sourceLineNo">580</span>      throws IOException {}<a name="line.580"></a>
+<span class="sourceLineNo">581</span><a name="line.581"></a>
+<span class="sourceLineNo">582</span>  /**<a name="line.582"></a>
+<span class="sourceLineNo">583</span>   * Called after the region is split.<a name="line.583"></a>
+<span class="sourceLineNo">584</span>   * @param c the environment to interact with the framework and master<a name="line.584"></a>
+<span class="sourceLineNo">585</span>   * @param regionInfoA the left daughter region<a name="line.585"></a>
+<span class="sourceLineNo">586</span>   * @param regionInfoB the right daughter region<a name="line.586"></a>
+<span class="sourceLineNo">587</span>   */<a name="line.587"></a>
+<span class="sourceLineNo">588</span>  default void postCompletedSplitRegionAction(<a name="line.588"></a>
+<span class="sourceLineNo">589</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; c,<a name="line.589"></a>
+<span class="sourceLineNo">590</span>      final RegionInfo regionInfoA,<a name="line.590"></a>
+<span class="sourceLineNo">591</span>      final RegionInfo regionInfoB) throws IOException {}<a name="line.591"></a>
+<span class="sourceLineNo">592</span><a name="line.592"></a>
+<span class="sourceLineNo">593</span>  /**<a name="line.593"></a>
+<span class="sourceLineNo">594</span>   * This will be called before update META step as part of split transaction.<a name="line.594"></a>
+<span class="sourceLineNo">595</span>   * @param ctx the environment to interact with the framework and master<a name="line.595"></a>
+<span class="sourceLineNo">596</span>   * @param splitKey<a name="line.596"></a>
+<span class="sourceLineNo">597</span>   * @param metaEntries<a name="line.597"></a>
+<span class="sourceLineNo">598</span>   */<a name="line.598"></a>
+<span class="sourceLineNo">599</span>  default void preSplitRegionBeforeMETAAction(<a name="line.599"></a>
+<span class="sourceLineNo">600</span>      final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.600"></a>
+<span class="sourceLineNo">601</span>      final byte[] splitKey,<a name="line.601"></a>
+<span class="sourceLineNo">602</span>      final List&lt;Mutation&gt; metaEntries) throws IOException {}<a name="line.602"></a>
+<span class="sourceLineNo">603</span><a name="line.603"></a>
+<span class="sourceLineNo">604</span><a name="line.604"></a>
+<span class="sourceLineNo">605</span>  /**<a name="line.605"></a>
+<span class="sourceLineNo">606</span>   * This will be called after update META step as part of split transaction<a name="line.606"></a>
+<span class="sourceLineNo">607</span>   * @param ctx the environment to interact with the framework and master<a name="line.607"></a>
 <span class="sourceLineNo">608</span>   */<a name="line.608"></a>
-<span class="sourceLineNo">609</span>  default void postBalanceSwitch(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.609"></a>
-<span class="sourceLineNo">610</span>      final boolean oldValue, final boolean newValue) throws IOException {}<a name="line.610"></a>
-<span class="sourceLineNo">611</span><a name="line.611"></a>
-<span class="sourceLineNo">612</span>  /**<a name="line.612"></a>
-<span class="sourceLineNo">613</span>   * Called prior to shutting down the full HBase cluster, including this<a name="line.613"></a>
-<span class="sourceLineNo">614</span>   * {@link org.apache.hadoop.hbase.master.HMaster} process.<a name="line.614"></a>
-<span class="sourceLineNo">615</span>   */<a name="line.615"></a>
-<span class="sourceLineNo">616</span>  default void preShutdown(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.616"></a>
-<span class="sourceLineNo">617</span>      throws IOException {}<a name="line.617"></a>
-<span class="sourceLineNo">618</span><a name="line.618"></a>
-<span class="sourceLineNo">619</span><a name="line.619"></a>
-<span class="sourceLineNo">620</span>  /**<a name="line.620"></a>
-<span class="sourceLineNo">621</span>   * Called immediately prior to stopping this<a name="line.621"></a>
-<span class="sourceLineNo">622</span>   * {@link org.apache.hadoop.hbase.master.HMaster} process.<a name="line.622"></a>
-<span class="sourceLineNo">623</span>   */<a name="line.623"></a>
-<span class="sourceLineNo">624</span>  default void preStopMaster(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.624"></a>
-<span class="sourceLineNo">625</span>      throws IOException {}<a name="line.625"></a>
-<span class="sourceLineNo">626</span><a name="line.626"></a>
-<span class="sourceLineNo">627</span>  /**<a name="line.627"></a>
-<span class="sourceLineNo">628</span>   * Called immediately after an active master instance has completed<a name="line.628"></a>
-<span class="sourceLineNo">629</span>   * initialization.  Will not be called on standby master instances unless<a name="line.629"></a>
-<span class="sourceLineNo">630</span>   * they take over the active role.<a name="line.630"></a>
-<span class="sourceLineNo">631</span>   */<a name="line.631"></a>
-<span class="sourceLineNo">632</span>  default void postStartMaster(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.632"></a>
-<span class="sourceLineNo">633</span>      throws IOException {}<a name="line.633"></a>
-<span class="sourceLineNo">634</span><a name="line.634"></a>
-<span class="sourceLineNo">635</span>  /**<a name="line.635"></a>
-<span class="sourceLineNo">636</span>   * Call before the master initialization is set to true.<a name="line.636"></a>
-<span class="sourceLineNo">637</span>   * {@link org.apache.hadoop.hbase.master.HMaster} process.<a name="line.637"></a>
-<span class="sourceLineNo">638</span>   */<a name="line.638"></a>
-<span class="sourceLineNo">639</span>  default void preMasterInitialization(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx)<a name="line.639"></a>
-<span class="sourceLineNo">640</span>      throws IOException {}<a name="line.640"></a>
-<span class="sourceLineNo">641</span><a name="line.641"></a>
-<span class="sourceLineNo">642</span>  /**<a name="line.642"></a>
-<span class="sourceLineNo">643</span>   * Called before a new snapshot is taken.<a name="line.643"></a>
-<span class="sourceLineNo">644</span>   * Called as part of snapshot RPC call.<a name="line.644"></a>
-<span class="sourceLineNo">645</span>   * @param ctx the environment to interact with the framework and master<a name="line.645"></a>
-<span class="sourceLineNo">646</span>   * @param snapshot the SnapshotDescriptor for the snapshot<a name="line.646"></a>
-<span class="sourceLineNo">647</span>   * @param tableDescriptor the TableDescriptor of the table to snapshot<a name="line.647"></a>
-<span class="sourceLineNo">648</span>   */<a name="line.648"></a>
-<span class="sourceLineNo">649</span>  default void preSnapshot(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.649"></a>
-<span class="sourceLineNo">650</span>      final SnapshotDescription snapshot, final TableDescriptor tableDescriptor)<a name="line.650"></a>
-<span class="sourceLineNo">651</span>      throws IOException {}<a name="line.651"></a>
-<span class="sourceLineNo">652</span><a name="line.652"></a>
-<span class="sourceLineNo">653</span>  /**<a name="line.653"></a>
-<span class="sourceLineNo">654</span>   * Called after the snapshot operation has been requested.<a name="line.654"></a>
-<span class="sourceLineNo">655</span>   * Called as part of snapshot RPC call.<a name="line.655"></a>
-<span class="sourceLineNo">656</span>   * @param ctx the environment to interact with the framework and master<a name="line.656"></a>
-<span class="sourceLineNo">657</span>   * @param snapshot the SnapshotDescriptor for the snapshot<a name="line.657"></a>
-<span class="sourceLineNo">658</span>   * @param tableDescriptor the TableDescriptor of the table to snapshot<a name="line.658"></a>
-<span class="sourceLineNo">659</span>   */<a name="line.659"></a>
-<span class="sourceLineNo">660</span>  default void postSnapshot(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.660"></a>
-<span class="sourceLineNo">661</span>      final SnapshotDescription snapshot, final TableDescriptor tableDescriptor)<a name="line.661"></a>
-<span class="sourceLineNo">662</span>      throws IOException {}<a name="line.662"></a>
-<span class="sourceLineNo">663</span><a name="line.663"></a>
-<span class="sourceLineNo">664</span>  /**<a name="line.664"></a>
-<span class="sourceLineNo">665</span>   * Called before listSnapshots request has been processed.<a name="line.665"></a>
-<span class="sourceLineNo">666</span>   * @param ctx the environment to interact with the framework and master<a name="line.666"></a>
-<span class="sourceLineNo">667</span>   * @param snapshot the SnapshotDescriptor of the snapshot to list<a name="line.667"></a>
-<span class="sourceLineNo">668</span>   */<a name="line.668"></a>
-<span class="sourceLineNo">669</span>  default void preListSnapshot(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.669"></a>
-<span class="sourceLineNo">670</span>      final SnapshotDescription snapshot) throws IOException {}<a name="line.670"></a>
-<span class="sourceLineNo">671</span><a name="line.671"></a>
-<span class="sourceLineNo">672</span>  /**<a name="line.672"></a>
-<span class="sourceLineNo">673</span>   * Called after listSnapshots request has been processed.<a name="line.673"></a>
-<span class="sourceLineNo">674</span>   * @param ctx the environment to interact with the framework and master<a name="line.674"></a>
-<span class="sourceLineNo">675</span>   * @param snapshot the SnapshotDescriptor of the snapshot to list<a name="line.675"></a>
-<span class="sourceLineNo">676</span>   */<a name="line.676"></a>
-<span class="sourceLineNo">677</span>  default void postListSnapshot(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.677"></a>
-<span class="sourceLineNo">678</span>      final SnapshotDescription snapshot) throws IOException {}<a name="line.678"></a>
-<span class="sourceLineNo">679</span><a name="line.679"></a>
-<span class="sourceLineNo">680</span>  /**<a name="line.680"></a>
-<span class="sourceLineNo">681</span>   * Called before a snapshot is cloned.<a name="line.681"></a>
-<span class="sourceLineNo">682</span>   * Called as part of restoreSnapshot RPC call.<a name="line.682"></a>
-<span class="sourceLineNo">683</span>   * @param ctx the environment to interact with the framework and master<a name="line.683"></a>
-<span class="sourceLineNo">684</span>   * @param snapshot the SnapshotDescriptor for the snapshot<a name="line.684"></a>
-<span class="sourceLineNo">685</span>   * @param tableDescriptor the TableDescriptor of the table to create<a name="line.685"></a>
-<span class="sourceLineNo">686</span>   */<a name="line.686"></a>
-<span class="sourceLineNo">687</span>  default void preCloneSnapshot(final ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a name="line.687"></a>
-<span class="sourceLineNo">688</span>      final SnapshotDescription snapshot, final TableDescriptor tableDescriptor)<a name="line.688"></a>
-<span class="sourceLineNo">689</span>      throws IOException {}<a name="line.689"></a>
-<span class="sourceLineNo">690</span><a name="line.690"></a>
-<span class="sourceLineNo">691</span>  /**<a name="line.691"></a>
-<span class="sourceLineNo">692</span>   * Called after a snapshot clone operation has been requested.<a name="line.692"></a>
-<span class="sourceLineNo">693</span>   * Called as part of restoreSnapshot RPC call.<a name="line.693"></a>
-<span class="sourceLineNo">694</span>   * @param ctx the environment to interact with the framework and master<a name="line.694"></a>
-<span class="sourceLineNo">695</span>   * @param snapshot the SnapshotDescriptor for the snapshot<a name="line.695"></a>
-<span class="sourceLineNo">696</span>   * @param tableDescript

<TRUNCATED>