You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by mi...@apache.org on 2016/03/10 18:23:21 UTC
[38/51] [partial] hbase-site git commit: Published site at
f6945c4631e7697976fd8c2272f8152905c6f875.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/5eb82203/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.html
index 6535576..4186896 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.html
@@ -198,591 +198,604 @@
<span class="sourceLineNo">190</span> return false;<a name="line.190"></a>
<span class="sourceLineNo">191</span> }<a name="line.191"></a>
<span class="sourceLineNo">192</span><a name="line.192"></a>
-<span class="sourceLineNo">193</span> @Override<a name="line.193"></a>
-<span class="sourceLineNo">194</span> public String toString() {<a name="line.194"></a>
-<span class="sourceLineNo">195</span> StringBuilder sb = new StringBuilder();<a name="line.195"></a>
-<span class="sourceLineNo">196</span> toStringClassDetails(sb);<a name="line.196"></a>
-<span class="sourceLineNo">197</span><a name="line.197"></a>
-<span class="sourceLineNo">198</span> if (procId != null) {<a name="line.198"></a>
-<span class="sourceLineNo">199</span> sb.append(" id=");<a name="line.199"></a>
-<span class="sourceLineNo">200</span> sb.append(getProcId());<a name="line.200"></a>
-<span class="sourceLineNo">201</span> }<a name="line.201"></a>
-<span class="sourceLineNo">202</span><a name="line.202"></a>
-<span class="sourceLineNo">203</span> if (hasParent()) {<a name="line.203"></a>
-<span class="sourceLineNo">204</span> sb.append(" parent=");<a name="line.204"></a>
-<span class="sourceLineNo">205</span> sb.append(getParentProcId());<a name="line.205"></a>
-<span class="sourceLineNo">206</span> }<a name="line.206"></a>
-<span class="sourceLineNo">207</span><a name="line.207"></a>
-<span class="sourceLineNo">208</span> if (hasOwner()) {<a name="line.208"></a>
-<span class="sourceLineNo">209</span> sb.append(" owner=");<a name="line.209"></a>
-<span class="sourceLineNo">210</span> sb.append(getOwner());<a name="line.210"></a>
-<span class="sourceLineNo">211</span> }<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span> sb.append(" state=");<a name="line.213"></a>
-<span class="sourceLineNo">214</span> toStringState(sb);<a name="line.214"></a>
-<span class="sourceLineNo">215</span> return sb.toString();<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> protected String toStringClass() {<a name="line.218"></a>
-<span class="sourceLineNo">219</span> StringBuilder sb = new StringBuilder();<a name="line.219"></a>
-<span class="sourceLineNo">220</span> toStringClassDetails(sb);<a name="line.220"></a>
-<span class="sourceLineNo">221</span><a name="line.221"></a>
-<span class="sourceLineNo">222</span> return sb.toString();<a name="line.222"></a>
-<span class="sourceLineNo">223</span> }<a name="line.223"></a>
-<span class="sourceLineNo">224</span><a name="line.224"></a>
-<span class="sourceLineNo">225</span> /**<a name="line.225"></a>
-<span class="sourceLineNo">226</span> * Called from {@link #toString()} when interpolating {@link Procedure} state<a name="line.226"></a>
-<span class="sourceLineNo">227</span> * @param builder Append current {@link ProcedureState}<a name="line.227"></a>
-<span class="sourceLineNo">228</span> */<a name="line.228"></a>
-<span class="sourceLineNo">229</span> protected void toStringState(StringBuilder builder) {<a name="line.229"></a>
-<span class="sourceLineNo">230</span> builder.append(getState());<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> * Extend the toString() information with the procedure details<a name="line.234"></a>
-<span class="sourceLineNo">235</span> * e.g. className and parameters<a name="line.235"></a>
-<span class="sourceLineNo">236</span> * @param builder the string builder to use to append the proc specific information<a name="line.236"></a>
-<span class="sourceLineNo">237</span> */<a name="line.237"></a>
-<span class="sourceLineNo">238</span> protected void toStringClassDetails(StringBuilder builder) {<a name="line.238"></a>
-<span class="sourceLineNo">239</span> builder.append(getClass().getName());<a name="line.239"></a>
-<span class="sourceLineNo">240</span> }<a name="line.240"></a>
-<span class="sourceLineNo">241</span><a name="line.241"></a>
-<span class="sourceLineNo">242</span> /**<a name="line.242"></a>
-<span class="sourceLineNo">243</span> * @return the serialized result if any, otherwise null<a name="line.243"></a>
-<span class="sourceLineNo">244</span> */<a name="line.244"></a>
-<span class="sourceLineNo">245</span> public byte[] getResult() {<a name="line.245"></a>
-<span class="sourceLineNo">246</span> return result;<a name="line.246"></a>
-<span class="sourceLineNo">247</span> }<a name="line.247"></a>
-<span class="sourceLineNo">248</span><a name="line.248"></a>
-<span class="sourceLineNo">249</span> /**<a name="line.249"></a>
-<span class="sourceLineNo">250</span> * The procedure may leave a "result" on completion.<a name="line.250"></a>
-<span class="sourceLineNo">251</span> * @param result the serialized result that will be passed to the client<a name="line.251"></a>
-<span class="sourceLineNo">252</span> */<a name="line.252"></a>
-<span class="sourceLineNo">253</span> protected void setResult(final byte[] result) {<a name="line.253"></a>
-<span class="sourceLineNo">254</span> this.result = result;<a name="line.254"></a>
-<span class="sourceLineNo">255</span> }<a name="line.255"></a>
-<span class="sourceLineNo">256</span><a name="line.256"></a>
-<span class="sourceLineNo">257</span> public long getProcId() {<a name="line.257"></a>
-<span class="sourceLineNo">258</span> return procId;<a name="line.258"></a>
-<span class="sourceLineNo">259</span> }<a name="line.259"></a>
-<span class="sourceLineNo">260</span><a name="line.260"></a>
-<span class="sourceLineNo">261</span> public boolean hasParent() {<a name="line.261"></a>
-<span class="sourceLineNo">262</span> return parentProcId != null;<a name="line.262"></a>
-<span class="sourceLineNo">263</span> }<a name="line.263"></a>
-<span class="sourceLineNo">264</span><a name="line.264"></a>
-<span class="sourceLineNo">265</span> public boolean hasException() {<a name="line.265"></a>
-<span class="sourceLineNo">266</span> return exception != null;<a name="line.266"></a>
-<span class="sourceLineNo">267</span> }<a name="line.267"></a>
-<span class="sourceLineNo">268</span><a name="line.268"></a>
-<span class="sourceLineNo">269</span> public boolean hasTimeout() {<a name="line.269"></a>
-<span class="sourceLineNo">270</span> return timeout != null;<a name="line.270"></a>
-<span class="sourceLineNo">271</span> }<a name="line.271"></a>
-<span class="sourceLineNo">272</span><a name="line.272"></a>
-<span class="sourceLineNo">273</span> public long getParentProcId() {<a name="line.273"></a>
-<span class="sourceLineNo">274</span> return parentProcId;<a name="line.274"></a>
-<span class="sourceLineNo">275</span> }<a name="line.275"></a>
-<span class="sourceLineNo">276</span><a name="line.276"></a>
-<span class="sourceLineNo">277</span> public NonceKey getNonceKey() {<a name="line.277"></a>
-<span class="sourceLineNo">278</span> return nonceKey;<a name="line.278"></a>
-<span class="sourceLineNo">279</span> }<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> * @return true if the procedure has failed.<a name="line.282"></a>
-<span class="sourceLineNo">283</span> * true may mean failed but not yet rolledback or failed and rolledback.<a name="line.283"></a>
-<span class="sourceLineNo">284</span> */<a name="line.284"></a>
-<span class="sourceLineNo">285</span> public synchronized boolean isFailed() {<a name="line.285"></a>
-<span class="sourceLineNo">286</span> return exception != null || state == ProcedureState.ROLLEDBACK;<a name="line.286"></a>
-<span class="sourceLineNo">287</span> }<a name="line.287"></a>
-<span class="sourceLineNo">288</span><a name="line.288"></a>
-<span class="sourceLineNo">289</span> /**<a name="line.289"></a>
-<span class="sourceLineNo">290</span> * @return true if the procedure is finished successfully.<a name="line.290"></a>
-<span class="sourceLineNo">291</span> */<a name="line.291"></a>
-<span class="sourceLineNo">292</span> public synchronized boolean isSuccess() {<a name="line.292"></a>
-<span class="sourceLineNo">293</span> return state == ProcedureState.FINISHED && exception == null;<a name="line.293"></a>
-<span class="sourceLineNo">294</span> }<a name="line.294"></a>
-<span class="sourceLineNo">295</span><a name="line.295"></a>
-<span class="sourceLineNo">296</span> /**<a name="line.296"></a>
-<span class="sourceLineNo">297</span> * @return true if the procedure is finished. The Procedure may be completed<a name="line.297"></a>
-<span class="sourceLineNo">298</span> * successfuly or failed and rolledback.<a name="line.298"></a>
-<span class="sourceLineNo">299</span> */<a name="line.299"></a>
-<span class="sourceLineNo">300</span> public synchronized boolean isFinished() {<a name="line.300"></a>
-<span class="sourceLineNo">301</span> switch (state) {<a name="line.301"></a>
-<span class="sourceLineNo">302</span> case ROLLEDBACK:<a name="line.302"></a>
-<span class="sourceLineNo">303</span> return true;<a name="line.303"></a>
-<span class="sourceLineNo">304</span> case FINISHED:<a name="line.304"></a>
-<span class="sourceLineNo">305</span> return exception == null;<a name="line.305"></a>
-<span class="sourceLineNo">306</span> default:<a name="line.306"></a>
-<span class="sourceLineNo">307</span> break;<a name="line.307"></a>
-<span class="sourceLineNo">308</span> }<a name="line.308"></a>
-<span class="sourceLineNo">309</span> return false;<a name="line.309"></a>
-<span class="sourceLineNo">310</span> }<a name="line.310"></a>
-<span class="sourceLineNo">311</span><a name="line.311"></a>
-<span class="sourceLineNo">312</span> /**<a name="line.312"></a>
-<span class="sourceLineNo">313</span> * @return true if the procedure is waiting for a child to finish or for an external event.<a name="line.313"></a>
-<span class="sourceLineNo">314</span> */<a name="line.314"></a>
-<span class="sourceLineNo">315</span> public synchronized boolean isWaiting() {<a name="line.315"></a>
-<span class="sourceLineNo">316</span> switch (state) {<a name="line.316"></a>
-<span class="sourceLineNo">317</span> case WAITING:<a name="line.317"></a>
-<span class="sourceLineNo">318</span> case WAITING_TIMEOUT:<a name="line.318"></a>
-<span class="sourceLineNo">319</span> return true;<a name="line.319"></a>
-<span class="sourceLineNo">320</span> default:<a name="line.320"></a>
-<span class="sourceLineNo">321</span> break;<a name="line.321"></a>
-<span class="sourceLineNo">322</span> }<a name="line.322"></a>
-<span class="sourceLineNo">323</span> return false;<a name="line.323"></a>
-<span class="sourceLineNo">324</span> }<a name="line.324"></a>
-<span class="sourceLineNo">325</span><a name="line.325"></a>
-<span class="sourceLineNo">326</span> public synchronized RemoteProcedureException getException() {<a name="line.326"></a>
-<span class="sourceLineNo">327</span> return exception;<a name="line.327"></a>
-<span class="sourceLineNo">328</span> }<a name="line.328"></a>
-<span class="sourceLineNo">329</span><a name="line.329"></a>
-<span class="sourceLineNo">330</span> public long getStartTime() {<a name="line.330"></a>
-<span class="sourceLineNo">331</span> return startTime;<a name="line.331"></a>
-<span class="sourceLineNo">332</span> }<a name="line.332"></a>
-<span class="sourceLineNo">333</span><a name="line.333"></a>
-<span class="sourceLineNo">334</span> public synchronized long getLastUpdate() {<a name="line.334"></a>
-<span class="sourceLineNo">335</span> return lastUpdate;<a name="line.335"></a>
-<span class="sourceLineNo">336</span> }<a name="line.336"></a>
-<span class="sourceLineNo">337</span><a name="line.337"></a>
-<span class="sourceLineNo">338</span> public synchronized long elapsedTime() {<a name="line.338"></a>
-<span class="sourceLineNo">339</span> return lastUpdate - startTime;<a name="line.339"></a>
-<span class="sourceLineNo">340</span> }<a name="line.340"></a>
-<span class="sourceLineNo">341</span><a name="line.341"></a>
-<span class="sourceLineNo">342</span> /**<a name="line.342"></a>
-<span class="sourceLineNo">343</span> * @param timeout timeout in msec<a name="line.343"></a>
-<span class="sourceLineNo">344</span> */<a name="line.344"></a>
-<span class="sourceLineNo">345</span> protected void setTimeout(final int timeout) {<a name="line.345"></a>
-<span class="sourceLineNo">346</span> this.timeout = timeout;<a name="line.346"></a>
-<span class="sourceLineNo">347</span> }<a name="line.347"></a>
-<span class="sourceLineNo">348</span><a name="line.348"></a>
-<span class="sourceLineNo">349</span> /**<a name="line.349"></a>
-<span class="sourceLineNo">350</span> * @return the timeout in msec<a name="line.350"></a>
-<span class="sourceLineNo">351</span> */<a name="line.351"></a>
-<span class="sourceLineNo">352</span> public int getTimeout() {<a name="line.352"></a>
-<span class="sourceLineNo">353</span> return timeout;<a name="line.353"></a>
-<span class="sourceLineNo">354</span> }<a name="line.354"></a>
-<span class="sourceLineNo">355</span><a name="line.355"></a>
-<span class="sourceLineNo">356</span> /**<a name="line.356"></a>
-<span class="sourceLineNo">357</span> * @return the remaining time before the timeout<a name="line.357"></a>
-<span class="sourceLineNo">358</span> */<a name="line.358"></a>
-<span class="sourceLineNo">359</span> public long getTimeRemaining() {<a name="line.359"></a>
-<span class="sourceLineNo">360</span> return Math.max(0, timeout - (EnvironmentEdgeManager.currentTime() - startTime));<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> @VisibleForTesting<a name="line.363"></a>
-<span class="sourceLineNo">364</span> @InterfaceAudience.Private<a name="line.364"></a>
-<span class="sourceLineNo">365</span> public void setOwner(final String owner) {<a name="line.365"></a>
-<span class="sourceLineNo">366</span> this.owner = StringUtils.isEmpty(owner) ? null : owner;<a name="line.366"></a>
+<span class="sourceLineNo">193</span> /**<a name="line.193"></a>
+<span class="sourceLineNo">194</span> * By default, the executor will keep the procedure result around util<a name="line.194"></a>
+<span class="sourceLineNo">195</span> * the eviction TTL is expired. The client can cut down the waiting time<a name="line.195"></a>
+<span class="sourceLineNo">196</span> * by requesting that the result is removed from the executor.<a name="line.196"></a>
+<span class="sourceLineNo">197</span> * In case of system started procedure, we can force the executor to auto-ack.<a name="line.197"></a>
+<span class="sourceLineNo">198</span> * @param env the environment passed to the ProcedureExecutor<a name="line.198"></a>
+<span class="sourceLineNo">199</span> * @return true if the executor should wait the client ack for the result.<a name="line.199"></a>
+<span class="sourceLineNo">200</span> * Defaults to return true.<a name="line.200"></a>
+<span class="sourceLineNo">201</span> */<a name="line.201"></a>
+<span class="sourceLineNo">202</span> protected boolean shouldWaitClientAck(final TEnvironment env) {<a name="line.202"></a>
+<span class="sourceLineNo">203</span> return true;<a name="line.203"></a>
+<span class="sourceLineNo">204</span> }<a name="line.204"></a>
+<span class="sourceLineNo">205</span><a name="line.205"></a>
+<span class="sourceLineNo">206</span> @Override<a name="line.206"></a>
+<span class="sourceLineNo">207</span> public String toString() {<a name="line.207"></a>
+<span class="sourceLineNo">208</span> StringBuilder sb = new StringBuilder();<a name="line.208"></a>
+<span class="sourceLineNo">209</span> toStringClassDetails(sb);<a name="line.209"></a>
+<span class="sourceLineNo">210</span><a name="line.210"></a>
+<span class="sourceLineNo">211</span> if (procId != null) {<a name="line.211"></a>
+<span class="sourceLineNo">212</span> sb.append(" id=");<a name="line.212"></a>
+<span class="sourceLineNo">213</span> sb.append(getProcId());<a name="line.213"></a>
+<span class="sourceLineNo">214</span> }<a name="line.214"></a>
+<span class="sourceLineNo">215</span><a name="line.215"></a>
+<span class="sourceLineNo">216</span> if (hasParent()) {<a name="line.216"></a>
+<span class="sourceLineNo">217</span> sb.append(" parent=");<a name="line.217"></a>
+<span class="sourceLineNo">218</span> sb.append(getParentProcId());<a name="line.218"></a>
+<span class="sourceLineNo">219</span> }<a name="line.219"></a>
+<span class="sourceLineNo">220</span><a name="line.220"></a>
+<span class="sourceLineNo">221</span> if (hasOwner()) {<a name="line.221"></a>
+<span class="sourceLineNo">222</span> sb.append(" owner=");<a name="line.222"></a>
+<span class="sourceLineNo">223</span> sb.append(getOwner());<a name="line.223"></a>
+<span class="sourceLineNo">224</span> }<a name="line.224"></a>
+<span class="sourceLineNo">225</span><a name="line.225"></a>
+<span class="sourceLineNo">226</span> sb.append(" state=");<a name="line.226"></a>
+<span class="sourceLineNo">227</span> toStringState(sb);<a name="line.227"></a>
+<span class="sourceLineNo">228</span> return sb.toString();<a name="line.228"></a>
+<span class="sourceLineNo">229</span> }<a name="line.229"></a>
+<span class="sourceLineNo">230</span><a name="line.230"></a>
+<span class="sourceLineNo">231</span> protected String toStringClass() {<a name="line.231"></a>
+<span class="sourceLineNo">232</span> StringBuilder sb = new StringBuilder();<a name="line.232"></a>
+<span class="sourceLineNo">233</span> toStringClassDetails(sb);<a name="line.233"></a>
+<span class="sourceLineNo">234</span><a name="line.234"></a>
+<span class="sourceLineNo">235</span> return sb.toString();<a name="line.235"></a>
+<span class="sourceLineNo">236</span> }<a name="line.236"></a>
+<span class="sourceLineNo">237</span><a name="line.237"></a>
+<span class="sourceLineNo">238</span> /**<a name="line.238"></a>
+<span class="sourceLineNo">239</span> * Called from {@link #toString()} when interpolating {@link Procedure} state<a name="line.239"></a>
+<span class="sourceLineNo">240</span> * @param builder Append current {@link ProcedureState}<a name="line.240"></a>
+<span class="sourceLineNo">241</span> */<a name="line.241"></a>
+<span class="sourceLineNo">242</span> protected void toStringState(StringBuilder builder) {<a name="line.242"></a>
+<span class="sourceLineNo">243</span> builder.append(getState());<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> /**<a name="line.246"></a>
+<span class="sourceLineNo">247</span> * Extend the toString() information with the procedure details<a name="line.247"></a>
+<span class="sourceLineNo">248</span> * e.g. className and parameters<a name="line.248"></a>
+<span class="sourceLineNo">249</span> * @param builder the string builder to use to append the proc specific information<a name="line.249"></a>
+<span class="sourceLineNo">250</span> */<a name="line.250"></a>
+<span class="sourceLineNo">251</span> protected void toStringClassDetails(StringBuilder builder) {<a name="line.251"></a>
+<span class="sourceLineNo">252</span> builder.append(getClass().getName());<a name="line.252"></a>
+<span class="sourceLineNo">253</span> }<a name="line.253"></a>
+<span class="sourceLineNo">254</span><a name="line.254"></a>
+<span class="sourceLineNo">255</span> /**<a name="line.255"></a>
+<span class="sourceLineNo">256</span> * @return the serialized result if any, otherwise null<a name="line.256"></a>
+<span class="sourceLineNo">257</span> */<a name="line.257"></a>
+<span class="sourceLineNo">258</span> public byte[] getResult() {<a name="line.258"></a>
+<span class="sourceLineNo">259</span> return result;<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> /**<a name="line.262"></a>
+<span class="sourceLineNo">263</span> * The procedure may leave a "result" on completion.<a name="line.263"></a>
+<span class="sourceLineNo">264</span> * @param result the serialized result that will be passed to the client<a name="line.264"></a>
+<span class="sourceLineNo">265</span> */<a name="line.265"></a>
+<span class="sourceLineNo">266</span> protected void setResult(final byte[] result) {<a name="line.266"></a>
+<span class="sourceLineNo">267</span> this.result = result;<a name="line.267"></a>
+<span class="sourceLineNo">268</span> }<a name="line.268"></a>
+<span class="sourceLineNo">269</span><a name="line.269"></a>
+<span class="sourceLineNo">270</span> public long getProcId() {<a name="line.270"></a>
+<span class="sourceLineNo">271</span> return procId;<a name="line.271"></a>
+<span class="sourceLineNo">272</span> }<a name="line.272"></a>
+<span class="sourceLineNo">273</span><a name="line.273"></a>
+<span class="sourceLineNo">274</span> public boolean hasParent() {<a name="line.274"></a>
+<span class="sourceLineNo">275</span> return parentProcId != null;<a name="line.275"></a>
+<span class="sourceLineNo">276</span> }<a name="line.276"></a>
+<span class="sourceLineNo">277</span><a name="line.277"></a>
+<span class="sourceLineNo">278</span> public boolean hasException() {<a name="line.278"></a>
+<span class="sourceLineNo">279</span> return exception != null;<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> public boolean hasTimeout() {<a name="line.282"></a>
+<span class="sourceLineNo">283</span> return timeout != null;<a name="line.283"></a>
+<span class="sourceLineNo">284</span> }<a name="line.284"></a>
+<span class="sourceLineNo">285</span><a name="line.285"></a>
+<span class="sourceLineNo">286</span> public long getParentProcId() {<a name="line.286"></a>
+<span class="sourceLineNo">287</span> return parentProcId;<a name="line.287"></a>
+<span class="sourceLineNo">288</span> }<a name="line.288"></a>
+<span class="sourceLineNo">289</span><a name="line.289"></a>
+<span class="sourceLineNo">290</span> public NonceKey getNonceKey() {<a name="line.290"></a>
+<span class="sourceLineNo">291</span> return nonceKey;<a name="line.291"></a>
+<span class="sourceLineNo">292</span> }<a name="line.292"></a>
+<span class="sourceLineNo">293</span><a name="line.293"></a>
+<span class="sourceLineNo">294</span> /**<a name="line.294"></a>
+<span class="sourceLineNo">295</span> * @return true if the procedure has failed.<a name="line.295"></a>
+<span class="sourceLineNo">296</span> * true may mean failed but not yet rolledback or failed and rolledback.<a name="line.296"></a>
+<span class="sourceLineNo">297</span> */<a name="line.297"></a>
+<span class="sourceLineNo">298</span> public synchronized boolean isFailed() {<a name="line.298"></a>
+<span class="sourceLineNo">299</span> return exception != null || state == ProcedureState.ROLLEDBACK;<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> /**<a name="line.302"></a>
+<span class="sourceLineNo">303</span> * @return true if the procedure is finished successfully.<a name="line.303"></a>
+<span class="sourceLineNo">304</span> */<a name="line.304"></a>
+<span class="sourceLineNo">305</span> public synchronized boolean isSuccess() {<a name="line.305"></a>
+<span class="sourceLineNo">306</span> return state == ProcedureState.FINISHED && exception == null;<a name="line.306"></a>
+<span class="sourceLineNo">307</span> }<a name="line.307"></a>
+<span class="sourceLineNo">308</span><a name="line.308"></a>
+<span class="sourceLineNo">309</span> /**<a name="line.309"></a>
+<span class="sourceLineNo">310</span> * @return true if the procedure is finished. The Procedure may be completed<a name="line.310"></a>
+<span class="sourceLineNo">311</span> * successfuly or failed and rolledback.<a name="line.311"></a>
+<span class="sourceLineNo">312</span> */<a name="line.312"></a>
+<span class="sourceLineNo">313</span> public synchronized boolean isFinished() {<a name="line.313"></a>
+<span class="sourceLineNo">314</span> switch (state) {<a name="line.314"></a>
+<span class="sourceLineNo">315</span> case ROLLEDBACK:<a name="line.315"></a>
+<span class="sourceLineNo">316</span> return true;<a name="line.316"></a>
+<span class="sourceLineNo">317</span> case FINISHED:<a name="line.317"></a>
+<span class="sourceLineNo">318</span> return exception == null;<a name="line.318"></a>
+<span class="sourceLineNo">319</span> default:<a name="line.319"></a>
+<span class="sourceLineNo">320</span> break;<a name="line.320"></a>
+<span class="sourceLineNo">321</span> }<a name="line.321"></a>
+<span class="sourceLineNo">322</span> return false;<a name="line.322"></a>
+<span class="sourceLineNo">323</span> }<a name="line.323"></a>
+<span class="sourceLineNo">324</span><a name="line.324"></a>
+<span class="sourceLineNo">325</span> /**<a name="line.325"></a>
+<span class="sourceLineNo">326</span> * @return true if the procedure is waiting for a child to finish or for an external event.<a name="line.326"></a>
+<span class="sourceLineNo">327</span> */<a name="line.327"></a>
+<span class="sourceLineNo">328</span> public synchronized boolean isWaiting() {<a name="line.328"></a>
+<span class="sourceLineNo">329</span> switch (state) {<a name="line.329"></a>
+<span class="sourceLineNo">330</span> case WAITING:<a name="line.330"></a>
+<span class="sourceLineNo">331</span> case WAITING_TIMEOUT:<a name="line.331"></a>
+<span class="sourceLineNo">332</span> return true;<a name="line.332"></a>
+<span class="sourceLineNo">333</span> default:<a name="line.333"></a>
+<span class="sourceLineNo">334</span> break;<a name="line.334"></a>
+<span class="sourceLineNo">335</span> }<a name="line.335"></a>
+<span class="sourceLineNo">336</span> return false;<a name="line.336"></a>
+<span class="sourceLineNo">337</span> }<a name="line.337"></a>
+<span class="sourceLineNo">338</span><a name="line.338"></a>
+<span class="sourceLineNo">339</span> public synchronized RemoteProcedureException getException() {<a name="line.339"></a>
+<span class="sourceLineNo">340</span> return exception;<a name="line.340"></a>
+<span class="sourceLineNo">341</span> }<a name="line.341"></a>
+<span class="sourceLineNo">342</span><a name="line.342"></a>
+<span class="sourceLineNo">343</span> public long getStartTime() {<a name="line.343"></a>
+<span class="sourceLineNo">344</span> return startTime;<a name="line.344"></a>
+<span class="sourceLineNo">345</span> }<a name="line.345"></a>
+<span class="sourceLineNo">346</span><a name="line.346"></a>
+<span class="sourceLineNo">347</span> public synchronized long getLastUpdate() {<a name="line.347"></a>
+<span class="sourceLineNo">348</span> return lastUpdate;<a name="line.348"></a>
+<span class="sourceLineNo">349</span> }<a name="line.349"></a>
+<span class="sourceLineNo">350</span><a name="line.350"></a>
+<span class="sourceLineNo">351</span> public synchronized long elapsedTime() {<a name="line.351"></a>
+<span class="sourceLineNo">352</span> return lastUpdate - startTime;<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> /**<a name="line.355"></a>
+<span class="sourceLineNo">356</span> * @param timeout timeout in msec<a name="line.356"></a>
+<span class="sourceLineNo">357</span> */<a name="line.357"></a>
+<span class="sourceLineNo">358</span> protected void setTimeout(final int timeout) {<a name="line.358"></a>
+<span class="sourceLineNo">359</span> this.timeout = timeout;<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> /**<a name="line.362"></a>
+<span class="sourceLineNo">363</span> * @return the timeout in msec<a name="line.363"></a>
+<span class="sourceLineNo">364</span> */<a name="line.364"></a>
+<span class="sourceLineNo">365</span> public int getTimeout() {<a name="line.365"></a>
+<span class="sourceLineNo">366</span> return timeout;<a name="line.366"></a>
<span class="sourceLineNo">367</span> }<a name="line.367"></a>
<span class="sourceLineNo">368</span><a name="line.368"></a>
-<span class="sourceLineNo">369</span> public String getOwner() {<a name="line.369"></a>
-<span class="sourceLineNo">370</span> return owner;<a name="line.370"></a>
-<span class="sourceLineNo">371</span> }<a name="line.371"></a>
-<span class="sourceLineNo">372</span><a name="line.372"></a>
-<span class="sourceLineNo">373</span> public boolean hasOwner() {<a name="line.373"></a>
-<span class="sourceLineNo">374</span> return owner != null;<a name="line.374"></a>
-<span class="sourceLineNo">375</span> }<a name="line.375"></a>
-<span class="sourceLineNo">376</span><a name="line.376"></a>
-<span class="sourceLineNo">377</span> @VisibleForTesting<a name="line.377"></a>
-<span class="sourceLineNo">378</span> @InterfaceAudience.Private<a name="line.378"></a>
-<span class="sourceLineNo">379</span> protected synchronized void setState(final ProcedureState state) {<a name="line.379"></a>
-<span class="sourceLineNo">380</span> this.state = state;<a name="line.380"></a>
-<span class="sourceLineNo">381</span> updateTimestamp();<a name="line.381"></a>
-<span class="sourceLineNo">382</span> }<a name="line.382"></a>
-<span class="sourceLineNo">383</span><a name="line.383"></a>
-<span class="sourceLineNo">384</span> @InterfaceAudience.Private<a name="line.384"></a>
-<span class="sourceLineNo">385</span> protected synchronized ProcedureState getState() {<a name="line.385"></a>
-<span class="sourceLineNo">386</span> return state;<a name="line.386"></a>
-<span class="sourceLineNo">387</span> }<a name="line.387"></a>
-<span class="sourceLineNo">388</span><a name="line.388"></a>
-<span class="sourceLineNo">389</span> protected void setFailure(final String source, final Throwable cause) {<a name="line.389"></a>
-<span class="sourceLineNo">390</span> setFailure(new RemoteProcedureException(source, cause));<a name="line.390"></a>
-<span class="sourceLineNo">391</span> }<a name="line.391"></a>
-<span class="sourceLineNo">392</span><a name="line.392"></a>
-<span class="sourceLineNo">393</span> protected synchronized void setFailure(final RemoteProcedureException exception) {<a name="line.393"></a>
-<span class="sourceLineNo">394</span> this.exception = exception;<a name="line.394"></a>
-<span class="sourceLineNo">395</span> if (!isFinished()) {<a name="line.395"></a>
-<span class="sourceLineNo">396</span> setState(ProcedureState.FINISHED);<a name="line.396"></a>
-<span class="sourceLineNo">397</span> }<a name="line.397"></a>
-<span class="sourceLineNo">398</span> }<a name="line.398"></a>
-<span class="sourceLineNo">399</span><a name="line.399"></a>
-<span class="sourceLineNo">400</span> protected void setAbortFailure(final String source, final String msg) {<a name="line.400"></a>
-<span class="sourceLineNo">401</span> setFailure(source, new ProcedureAbortedException(msg));<a name="line.401"></a>
-<span class="sourceLineNo">402</span> }<a name="line.402"></a>
-<span class="sourceLineNo">403</span><a name="line.403"></a>
-<span class="sourceLineNo">404</span> @InterfaceAudience.Private<a name="line.404"></a>
-<span class="sourceLineNo">405</span> protected synchronized boolean setTimeoutFailure() {<a name="line.405"></a>
-<span class="sourceLineNo">406</span> if (state == ProcedureState.WAITING_TIMEOUT) {<a name="line.406"></a>
-<span class="sourceLineNo">407</span> long timeDiff = EnvironmentEdgeManager.currentTime() - lastUpdate;<a name="line.407"></a>
-<span class="sourceLineNo">408</span> setFailure("ProcedureExecutor", new TimeoutIOException(<a name="line.408"></a>
-<span class="sourceLineNo">409</span> "Operation timed out after " + StringUtils.humanTimeDiff(timeDiff)));<a name="line.409"></a>
-<span class="sourceLineNo">410</span> return true;<a name="line.410"></a>
-<span class="sourceLineNo">411</span> }<a name="line.411"></a>
-<span class="sourceLineNo">412</span> return false;<a name="line.412"></a>
-<span class="sourceLineNo">413</span> }<a name="line.413"></a>
-<span class="sourceLineNo">414</span><a name="line.414"></a>
-<span class="sourceLineNo">415</span> /**<a name="line.415"></a>
-<span class="sourceLineNo">416</span> * Called by the ProcedureExecutor to assign the ID to the newly created procedure.<a name="line.416"></a>
-<span class="sourceLineNo">417</span> */<a name="line.417"></a>
-<span class="sourceLineNo">418</span> @VisibleForTesting<a name="line.418"></a>
-<span class="sourceLineNo">419</span> @InterfaceAudience.Private<a name="line.419"></a>
-<span class="sourceLineNo">420</span> protected void setProcId(final long procId) {<a name="line.420"></a>
-<span class="sourceLineNo">421</span> this.procId = procId;<a name="line.421"></a>
-<span class="sourceLineNo">422</span> this.startTime = EnvironmentEdgeManager.currentTime();<a name="line.422"></a>
-<span class="sourceLineNo">423</span> setState(ProcedureState.RUNNABLE);<a name="line.423"></a>
-<span class="sourceLineNo">424</span> }<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 by the ProcedureExecutor to assign the parent to the newly created procedure.<a name="line.427"></a>
-<span class="sourceLineNo">428</span> */<a name="line.428"></a>
-<span class="sourceLineNo">429</span> @InterfaceAudience.Private<a name="line.429"></a>
-<span class="sourceLineNo">430</span> protected void setParentProcId(final long parentProcId) {<a name="line.430"></a>
-<span class="sourceLineNo">431</span> this.parentProcId = parentProcId;<a name="line.431"></a>
-<span class="sourceLineNo">432</span> }<a name="line.432"></a>
-<span class="sourceLineNo">433</span><a name="line.433"></a>
-<span class="sourceLineNo">434</span> /**<a name="line.434"></a>
-<span class="sourceLineNo">435</span> * Called by the ProcedureExecutor to set the value to the newly created procedure.<a name="line.435"></a>
-<span class="sourceLineNo">436</span> */<a name="line.436"></a>
-<span class="sourceLineNo">437</span> @VisibleForTesting<a name="line.437"></a>
-<span class="sourceLineNo">438</span> @InterfaceAudience.Private<a name="line.438"></a>
-<span class="sourceLineNo">439</span> protected void setNonceKey(final NonceKey nonceKey) {<a name="line.439"></a>
-<span class="sourceLineNo">440</span> this.nonceKey = nonceKey;<a name="line.440"></a>
-<span class="sourceLineNo">441</span> }<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> * Internal method called by the ProcedureExecutor that starts the<a name="line.444"></a>
-<span class="sourceLineNo">445</span> * user-level code execute().<a name="line.445"></a>
-<span class="sourceLineNo">446</span> */<a name="line.446"></a>
-<span class="sourceLineNo">447</span> @InterfaceAudience.Private<a name="line.447"></a>
-<span class="sourceLineNo">448</span> protected Procedure[] doExecute(final TEnvironment env)<a name="line.448"></a>
-<span class="sourceLineNo">449</span> throws ProcedureYieldException, InterruptedException {<a name="line.449"></a>
-<span class="sourceLineNo">450</span> try {<a name="line.450"></a>
-<span class="sourceLineNo">451</span> updateTimestamp();<a name="line.451"></a>
-<span class="sourceLineNo">452</span> return execute(env);<a name="line.452"></a>
-<span class="sourceLineNo">453</span> } finally {<a name="line.453"></a>
-<span class="sourceLineNo">454</span> updateTimestamp();<a name="line.454"></a>
-<span class="sourceLineNo">455</span> }<a name="line.455"></a>
-<span class="sourceLineNo">456</span> }<a name="line.456"></a>
-<span class="sourceLineNo">457</span><a name="line.457"></a>
-<span class="sourceLineNo">458</span> /**<a name="line.458"></a>
-<span class="sourceLineNo">459</span> * Internal method called by the ProcedureExecutor that starts the<a name="line.459"></a>
-<span class="sourceLineNo">460</span> * user-level code rollback().<a name="line.460"></a>
-<span class="sourceLineNo">461</span> */<a name="line.461"></a>
-<span class="sourceLineNo">462</span> @InterfaceAudience.Private<a name="line.462"></a>
-<span class="sourceLineNo">463</span> protected void doRollback(final TEnvironment env)<a name="line.463"></a>
-<span class="sourceLineNo">464</span> throws IOException, InterruptedException {<a name="line.464"></a>
-<span class="sourceLineNo">465</span> try {<a name="line.465"></a>
-<span class="sourceLineNo">466</span> updateTimestamp();<a name="line.466"></a>
-<span class="sourceLineNo">467</span> rollback(env);<a name="line.467"></a>
-<span class="sourceLineNo">468</span> } finally {<a name="line.468"></a>
-<span class="sourceLineNo">469</span> updateTimestamp();<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><a name="line.472"></a>
-<span class="sourceLineNo">473</span> /**<a name="line.473"></a>
-<span class="sourceLineNo">474</span> * Called on store load to initialize the Procedure internals after<a name="line.474"></a>
-<span class="sourceLineNo">475</span> * the creation/deserialization.<a name="line.475"></a>
-<span class="sourceLineNo">476</span> */<a name="line.476"></a>
-<span class="sourceLineNo">477</span> @InterfaceAudience.Private<a name="line.477"></a>
-<span class="sourceLineNo">478</span> protected void setStartTime(final long startTime) {<a name="line.478"></a>
-<span class="sourceLineNo">479</span> this.startTime = startTime;<a name="line.479"></a>
-<span class="sourceLineNo">480</span> }<a name="line.480"></a>
-<span class="sourceLineNo">481</span><a name="line.481"></a>
-<span class="sourceLineNo">482</span> /**<a name="line.482"></a>
-<span class="sourceLineNo">483</span> * Called on store load to initialize the Procedure internals after<a name="line.483"></a>
-<span class="sourceLineNo">484</span> * the creation/deserialization.<a name="line.484"></a>
-<span class="sourceLineNo">485</span> */<a name="line.485"></a>
-<span class="sourceLineNo">486</span> private synchronized void setLastUpdate(final long lastUpdate) {<a name="line.486"></a>
-<span class="sourceLineNo">487</span> this.lastUpdate = lastUpdate;<a name="line.487"></a>
-<span class="sourceLineNo">488</span> }<a name="line.488"></a>
-<span class="sourceLineNo">489</span><a name="line.489"></a>
-<span class="sourceLineNo">490</span> protected synchronized void updateTimestamp() {<a name="line.490"></a>
-<span class="sourceLineNo">491</span> this.lastUpdate = EnvironmentEdgeManager.currentTime();<a name="line.491"></a>
-<span class="sourceLineNo">492</span> }<a name="line.492"></a>
-<span class="sourceLineNo">493</span><a name="line.493"></a>
-<span class="sourceLineNo">494</span> /**<a name="line.494"></a>
-<span class="sourceLineNo">495</span> * Called by the ProcedureExecutor on procedure-load to restore the latch state<a name="line.495"></a>
-<span class="sourceLineNo">496</span> */<a name="line.496"></a>
-<span class="sourceLineNo">497</span> @InterfaceAudience.Private<a name="line.497"></a>
-<span class="sourceLineNo">498</span> protected synchronized void setChildrenLatch(final int numChildren) {<a name="line.498"></a>
-<span class="sourceLineNo">499</span> this.childrenLatch = numChildren;<a name="line.499"></a>
-<span class="sourceLineNo">500</span> }<a name="line.500"></a>
-<span class="sourceLineNo">501</span><a name="line.501"></a>
-<span class="sourceLineNo">502</span> /**<a name="line.502"></a>
-<span class="sourceLineNo">503</span> * Called by the ProcedureExecutor on procedure-load to restore the latch state<a name="line.503"></a>
-<span class="sourceLineNo">504</span> */<a name="line.504"></a>
-<span class="sourceLineNo">505</span> @InterfaceAudience.Private<a name="line.505"></a>
-<span class="sourceLineNo">506</span> protected synchronized void incChildrenLatch() {<a name="line.506"></a>
-<span class="sourceLineNo">507</span> // TODO: can this be inferred from the stack? I think so...<a name="line.507"></a>
-<span class="sourceLineNo">508</span> this.childrenLatch++;<a name="line.508"></a>
-<span class="sourceLineNo">509</span> }<a name="line.509"></a>
-<span class="sourceLineNo">510</span><a name="line.510"></a>
-<span class="sourceLineNo">511</span> /**<a name="line.511"></a>
-<span class="sourceLineNo">512</span> * Called by the ProcedureExecutor to notify that one of the sub-procedures<a name="line.512"></a>
-<span class="sourceLineNo">513</span> * has completed.<a name="line.513"></a>
-<span class="sourceLineNo">514</span> */<a name="line.514"></a>
-<span class="sourceLineNo">515</span> @InterfaceAudience.Private<a name="line.515"></a>
-<span class="sourceLineNo">516</span> protected synchronized boolean childrenCountDown() {<a name="line.516"></a>
-<span class="sourceLineNo">517</span> assert childrenLatch > 0;<a name="line.517"></a>
-<span class="sourceLineNo">518</span> return --childrenLatch == 0;<a name="line.518"></a>
-<span class="sourceLineNo">519</span> }<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 by the RootProcedureState on procedure execution.<a name="line.522"></a>
-<span class="sourceLineNo">523</span> * Each procedure store its stack-index positions.<a name="line.523"></a>
-<span class="sourceLineNo">524</span> */<a name="line.524"></a>
-<span class="sourceLineNo">525</span> @InterfaceAudience.Private<a name="line.525"></a>
-<span class="sourceLineNo">526</span> protected synchronized void addStackIndex(final int index) {<a name="line.526"></a>
-<span class="sourceLineNo">527</span> if (stackIndexes == null) {<a name="line.527"></a>
-<span class="sourceLineNo">528</span> stackIndexes = new int[] { index };<a name="line.528"></a>
-<span class="sourceLineNo">529</span> } else {<a name="line.529"></a>
-<span class="sourceLineNo">530</span> int count = stackIndexes.length;<a name="line.530"></a>
-<span class="sourceLineNo">531</span> stackIndexes = Arrays.copyOf(stackIndexes, count + 1);<a name="line.531"></a>
-<span class="sourceLineNo">532</span> stackIndexes[count] = index;<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> @InterfaceAudience.Private<a name="line.536"></a>
-<span class="sourceLineNo">537</span> protected synchronized boolean removeStackIndex() {<a name="line.537"></a>
-<span class="sourceLineNo">538</span> if (stackIndexes.length > 1) {<a name="line.538"></a>
-<span class="sourceLineNo">539</span> stackIndexes = Arrays.copyOf(stackIndexes, stackIndexes.length - 1);<a name="line.539"></a>
-<span class="sourceLineNo">540</span> return false;<a name="line.540"></a>
-<span class="sourceLineNo">541</span> } else {<a name="line.541"></a>
-<span class="sourceLineNo">542</span> stackIndexes = null;<a name="line.542"></a>
-<span class="sourceLineNo">543</span> return true;<a name="line.543"></a>
-<span class="sourceLineNo">544</span> }<a name="line.544"></a>
-<span class="sourceLineNo">545</span> }<a name="line.545"></a>
-<span class="sourceLineNo">546</span><a name="line.546"></a>
-<span class="sourceLineNo">547</span> /**<a name="line.547"></a>
-<span class="sourceLineNo">548</span> * Called on store load to initialize the Procedure internals after<a name="line.548"></a>
-<span class="sourceLineNo">549</span> * the creation/deserialization.<a name="line.549"></a>
-<span class="sourceLineNo">550</span> */<a name="line.550"></a>
-<span class="sourceLineNo">551</span> @InterfaceAudience.Private<a name="line.551"></a>
-<span class="sourceLineNo">552</span> protected synchronized void setStackIndexes(final List<Integer> stackIndexes) {<a name="line.552"></a>
-<span class="sourceLineNo">553</span> this.stackIndexes = new int[stackIndexes.size()];<a name="line.553"></a>
-<span class="sourceLineNo">554</span> for (int i = 0; i < this.stackIndexes.length; ++i) {<a name="line.554"></a>
-<span class="sourceLineNo">555</span> this.stackIndexes[i] = stackIndexes.get(i);<a name="line.555"></a>
-<span class="sourceLineNo">556</span> }<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> @InterfaceAudience.Private<a name="line.559"></a>
-<span class="sourceLineNo">560</span> protected synchronized boolean wasExecuted() {<a name="line.560"></a>
-<span class="sourceLineNo">561</span> return stackIndexes != null;<a name="line.561"></a>
-<span class="sourceLineNo">562</span> }<a name="line.562"></a>
-<span class="sourceLineNo">563</span><a name="line.563"></a>
+<span class="sourceLineNo">369</span> /**<a name="line.369"></a>
+<span class="sourceLineNo">370</span> * @return the remaining time before the timeout<a name="line.370"></a>
+<span class="sourceLineNo">371</span> */<a name="line.371"></a>
+<span class="sourceLineNo">372</span> public long getTimeRemaining() {<a name="line.372"></a>
+<span class="sourceLineNo">373</span> return Math.max(0, timeout - (EnvironmentEdgeManager.currentTime() - startTime));<a name="line.373"></a>
+<span class="sourceLineNo">374</span> }<a name="line.374"></a>
+<span class="sourceLineNo">375</span><a name="line.375"></a>
+<span class="sourceLineNo">376</span> @VisibleForTesting<a name="line.376"></a>
+<span class="sourceLineNo">377</span> @InterfaceAudience.Private<a name="line.377"></a>
+<span class="sourceLineNo">378</span> public void setOwner(final String owner) {<a name="line.378"></a>
+<span class="sourceLineNo">379</span> this.owner = StringUtils.isEmpty(owner) ? null : owner;<a name="line.379"></a>
+<span class="sourceLineNo">380</span> }<a name="line.380"></a>
+<span class="sourceLineNo">381</span><a name="line.381"></a>
+<span class="sourceLineNo">382</span> public String getOwner() {<a name="line.382"></a>
+<span class="sourceLineNo">383</span> return owner;<a name="line.383"></a>
+<span class="sourceLineNo">384</span> }<a name="line.384"></a>
+<span class="sourceLineNo">385</span><a name="line.385"></a>
+<span class="sourceLineNo">386</span> public boolean hasOwner() {<a name="line.386"></a>
+<span class="sourceLineNo">387</span> return owner != null;<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> @VisibleForTesting<a name="line.390"></a>
+<span class="sourceLineNo">391</span> @InterfaceAudience.Private<a name="line.391"></a>
+<span class="sourceLineNo">392</span> protected synchronized void setState(final ProcedureState state) {<a name="line.392"></a>
+<span class="sourceLineNo">393</span> this.state = state;<a name="line.393"></a>
+<span class="sourceLineNo">394</span> updateTimestamp();<a name="line.394"></a>
+<span class="sourceLineNo">395</span> }<a name="line.395"></a>
+<span class="sourceLineNo">396</span><a name="line.396"></a>
+<span class="sourceLineNo">397</span> @InterfaceAudience.Private<a name="line.397"></a>
+<span class="sourceLineNo">398</span> protected synchronized ProcedureState getState() {<a name="line.398"></a>
+<span class="sourceLineNo">399</span> return state;<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> protected void setFailure(final String source, final Throwable cause) {<a name="line.402"></a>
+<span class="sourceLineNo">403</span> setFailure(new RemoteProcedureException(source, cause));<a name="line.403"></a>
+<span class="sourceLineNo">404</span> }<a name="line.404"></a>
+<span class="sourceLineNo">405</span><a name="line.405"></a>
+<span class="sourceLineNo">406</span> protected synchronized void setFailure(final RemoteProcedureException exception) {<a name="line.406"></a>
+<span class="sourceLineNo">407</span> this.exception = exception;<a name="line.407"></a>
+<span class="sourceLineNo">408</span> if (!isFinished()) {<a name="line.408"></a>
+<span class="sourceLineNo">409</span> setState(ProcedureState.FINISHED);<a name="line.409"></a>
+<span class="sourceLineNo">410</span> }<a name="line.410"></a>
+<span class="sourceLineNo">411</span> }<a name="line.411"></a>
+<span class="sourceLineNo">412</span><a name="line.412"></a>
+<span class="sourceLineNo">413</span> protected void setAbortFailure(final String source, final String msg) {<a name="line.413"></a>
+<span class="sourceLineNo">414</span> setFailure(source, new ProcedureAbortedException(msg));<a name="line.414"></a>
+<span class="sourceLineNo">415</span> }<a name="line.415"></a>
+<span class="sourceLineNo">416</span><a name="line.416"></a>
+<span class="sourceLineNo">417</span> @InterfaceAudience.Private<a name="line.417"></a>
+<span class="sourceLineNo">418</span> protected synchronized boolean setTimeoutFailure() {<a name="line.418"></a>
+<span class="sourceLineNo">419</span> if (state == ProcedureState.WAITING_TIMEOUT) {<a name="line.419"></a>
+<span class="sourceLineNo">420</span> long timeDiff = EnvironmentEdgeManager.currentTime() - lastUpdate;<a name="line.420"></a>
+<span class="sourceLineNo">421</span> setFailure("ProcedureExecutor", new TimeoutIOException(<a name="line.421"></a>
+<span class="sourceLineNo">422</span> "Operation timed out after " + StringUtils.humanTimeDiff(timeDiff)));<a name="line.422"></a>
+<span class="sourceLineNo">423</span> return true;<a name="line.423"></a>
+<span class="sourceLineNo">424</span> }<a name="line.424"></a>
+<span class="sourceLineNo">425</span> return false;<a name="line.425"></a>
+<span class="sourceLineNo">426</span> }<a name="line.426"></a>
+<span class="sourceLineNo">427</span><a name="line.427"></a>
+<span class="sourceLineNo">428</span> /**<a name="line.428"></a>
+<span class="sourceLineNo">429</span> * Called by the ProcedureExecutor to assign the ID to the newly created procedure.<a name="line.429"></a>
+<span class="sourceLineNo">430</span> */<a name="line.430"></a>
+<span class="sourceLineNo">431</span> @VisibleForTesting<a name="line.431"></a>
+<span class="sourceLineNo">432</span> @InterfaceAudience.Private<a name="line.432"></a>
+<span class="sourceLineNo">433</span> protected void setProcId(final long procId) {<a name="line.433"></a>
+<span class="sourceLineNo">434</span> this.procId = procId;<a name="line.434"></a>
+<span class="sourceLineNo">435</span> this.startTime = EnvironmentEdgeManager.currentTime();<a name="line.435"></a>
+<span class="sourceLineNo">436</span> setState(ProcedureState.RUNNABLE);<a name="line.436"></a>
+<span class="sourceLineNo">437</span> }<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 by the ProcedureExecutor to assign the parent to the newly created procedure.<a name="line.440"></a>
+<span class="sourceLineNo">441</span> */<a name="line.441"></a>
+<span class="sourceLineNo">442</span> @InterfaceAudience.Private<a name="line.442"></a>
+<span class="sourceLineNo">443</span> protected void setParentProcId(final long parentProcId) {<a name="line.443"></a>
+<span class="sourceLineNo">444</span> this.parentProcId = parentProcId;<a name="line.444"></a>
+<span class="sourceLineNo">445</span> }<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 by the ProcedureExecutor to set the value to the newly created procedure.<a name="line.448"></a>
+<span class="sourceLineNo">449</span> */<a name="line.449"></a>
+<span class="sourceLineNo">450</span> @VisibleForTesting<a name="line.450"></a>
+<span class="sourceLineNo">451</span> @InterfaceAudience.Private<a name="line.451"></a>
+<span class="sourceLineNo">452</span> protected void setNonceKey(final NonceKey nonceKey) {<a name="line.452"></a>
+<span class="sourceLineNo">453</span> this.nonceKey = nonceKey;<a name="line.453"></a>
+<span class="sourceLineNo">454</span> }<a name="line.454"></a>
+<span class="sourceLineNo">455</span><a name="line.455"></a>
+<span class="sourceLineNo">456</span> /**<a name="line.456"></a>
+<span class="sourceLineNo">457</span> * Internal method called by the ProcedureExecutor that starts the<a name="line.457"></a>
+<span class="sourceLineNo">458</span> * user-level code execute().<a name="line.458"></a>
+<span class="sourceLineNo">459</span> */<a name="line.459"></a>
+<span class="sourceLineNo">460</span> @InterfaceAudience.Private<a name="line.460"></a>
+<span class="sourceLineNo">461</span> protected Procedure[] doExecute(final TEnvironment env)<a name="line.461"></a>
+<span class="sourceLineNo">462</span> throws ProcedureYieldException, InterruptedException {<a name="line.462"></a>
+<span class="sourceLineNo">463</span> try {<a name="line.463"></a>
+<span class="sourceLineNo">464</span> updateTimestamp();<a name="line.464"></a>
+<span class="sourceLineNo">465</span> return execute(env);<a name="line.465"></a>
+<span class="sourceLineNo">466</span> } finally {<a name="line.466"></a>
+<span class="sourceLineNo">467</span> updateTimestamp();<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><a name="line.470"></a>
+<span class="sourceLineNo">471</span> /**<a name="line.471"></a>
+<span class="sourceLineNo">472</span> * Internal method called by the ProcedureExecutor that starts the<a name="line.472"></a>
+<span class="sourceLineNo">473</span> * user-level code rollback().<a name="line.473"></a>
+<span class="sourceLineNo">474</span> */<a name="line.474"></a>
+<span class="sourceLineNo">475</span> @InterfaceAudience.Private<a name="line.475"></a>
+<span class="sourceLineNo">476</span> protected void doRollback(final TEnvironment env)<a name="line.476"></a>
+<span class="sourceLineNo">477</span> throws IOException, InterruptedException {<a name="line.477"></a>
+<span class="sourceLineNo">478</span> try {<a name="line.478"></a>
+<span class="sourceLineNo">479</span> updateTimestamp();<a name="line.479"></a>
+<span class="sourceLineNo">480</span> rollback(env);<a name="line.480"></a>
+<span class="sourceLineNo">481</span> } finally {<a name="line.481"></a>
+<span class="sourceLineNo">482</span> updateTimestamp();<a name="line.482"></a>
+<span class="sourceLineNo">483</span> }<a name="line.483"></a>
+<span class="sourceLineNo">484</span> }<a name="line.484"></a>
+<span class="sourceLineNo">485</span><a name="line.485"></a>
+<span class="sourceLineNo">486</span> /**<a name="line.486"></a>
+<span class="sourceLineNo">487</span> * Called on store load to initialize the Procedure internals after<a name="line.487"></a>
+<span class="sourceLineNo">488</span> * the creation/deserialization.<a name="line.488"></a>
+<span class="sourceLineNo">489</span> */<a name="line.489"></a>
+<span class="sourceLineNo">490</span> @InterfaceAudience.Private<a name="line.490"></a>
+<span class="sourceLineNo">491</span> protected void setStartTime(final long startTime) {<a name="line.491"></a>
+<span class="sourceLineNo">492</span> this.startTime = startTime;<a name="line.492"></a>
+<span class="sourceLineNo">493</span> }<a name="line.493"></a>
+<span class="sourceLineNo">494</span><a name="line.494"></a>
+<span class="sourceLineNo">495</span> /**<a name="line.495"></a>
+<span class="sourceLineNo">496</span> * Called on store load to initialize the Procedure internals after<a name="line.496"></a>
+<span class="sourceLineNo">497</span> * the creation/deserialization.<a name="line.497"></a>
+<span class="sourceLineNo">498</span> */<a name="line.498"></a>
+<span class="sourceLineNo">499</span> private synchronized void setLastUpdate(final long lastUpdate) {<a name="line.499"></a>
+<span class="sourceLineNo">500</span> this.lastUpdate = lastUpdate;<a name="line.500"></a>
+<span class="sourceLineNo">501</span> }<a name="line.501"></a>
+<span class="sourceLineNo">502</span><a name="line.502"></a>
+<span class="sourceLineNo">503</span> protected synchronized void updateTimestamp() {<a name="line.503"></a>
+<span class="sourceLineNo">504</span> this.lastUpdate = EnvironmentEdgeManager.currentTime();<a name="line.504"></a>
+<span class="sourceLineNo">505</span> }<a name="line.505"></a>
+<span class="sourceLineNo">506</span><a name="line.506"></a>
+<span class="sourceLineNo">507</span> /**<a name="line.507"></a>
+<span class="sourceLineNo">508</span> * Called by the ProcedureExecutor on procedure-load to restore the latch state<a name="line.508"></a>
+<span class="sourceLineNo">509</span> */<a name="line.509"></a>
+<span class="sourceLineNo">510</span> @InterfaceAudience.Private<a name="line.510"></a>
+<span class="sourceLineNo">511</span> protected synchronized void setChildrenLatch(final int numChildren) {<a name="line.511"></a>
+<span class="sourceLineNo">512</span> this.childrenLatch = numChildren;<a name="line.512"></a>
+<span class="sourceLineNo">513</span> }<a name="line.513"></a>
+<span class="sourceLineNo">514</span><a name="line.514"></a>
+<span class="sourceLineNo">515</span> /**<a name="line.515"></a>
+<span class="sourceLineNo">516</span> * Called by the ProcedureExecutor on procedure-load to restore the latch state<a name="line.516"></a>
+<span class="sourceLineNo">517</span> */<a name="line.517"></a>
+<span class="sourceLineNo">518</span> @InterfaceAudience.Private<a name="line.518"></a>
+<span class="sourceLineNo">519</span> protected synchronized void incChildrenLatch() {<a name="line.519"></a>
+<span class="sourceLineNo">520</span> // TODO: can this be inferred from the stack? I think so...<a name="line.520"></a>
+<span class="sourceLineNo">521</span> this.childrenLatch++;<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> /**<a name="line.524"></a>
+<span class="sourceLineNo">525</span> * Called by the ProcedureExecutor to notify that one of the sub-procedures<a name="line.525"></a>
+<span class="sourceLineNo">526</span> * has completed.<a name="line.526"></a>
+<span class="sourceLineNo">527</span> */<a name="line.527"></a>
+<span class="sourceLineNo">528</span> @InterfaceAudience.Private<a name="line.528"></a>
+<span class="sourceLineNo">529</span> protected synchronized boolean childrenCountDown() {<a name="line.529"></a>
+<span class="sourceLineNo">530</span> assert childrenLatch > 0;<a name="line.530"></a>
+<span class="sourceLineNo">531</span> return --childrenLatch == 0;<a name="line.531"></a>
+<span class="sourceLineNo">532</span> }<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> * Called by the RootProcedureState on procedure execution.<a name="line.535"></a>
+<span class="sourceLineNo">536</span> * Each procedure store its stack-index positions.<a name="line.536"></a>
+<span class="sourceLineNo">537</span> */<a name="line.537"></a>
+<span class="sourceLineNo">538</span> @InterfaceAudience.Private<a name="line.538"></a>
+<span class="sourceLineNo">539</span> protected synchronized void addStackIndex(final int index) {<a name="line.539"></a>
+<span class="sourceLineNo">540</span> if (stackIndexes == null) {<a name="line.540"></a>
+<span class="sourceLineNo">541</span> stackIndexes = new int[] { index };<a name="line.541"></a>
+<span class="sourceLineNo">542</span> } else {<a name="line.542"></a>
+<span class="sourceLineNo">543</span> int count = stackIndexes.length;<a name="line.543"></a>
+<span class="sourceLineNo">544</span> stackIndexes = Arrays.copyOf(stackIndexes, count + 1);<a name="line.544"></a>
+<span class="sourceLineNo">545</span> stackIndexes[count] = index;<a name="line.545"></a>
+<span class="sourceLineNo">546</span> }<a name="line.546"></a>
+<span class="sourceLineNo">547</span> }<a name="line.547"></a>
+<span class="sourceLineNo">548</span><a name="line.548"></a>
+<span class="sourceLineNo">549</span> @InterfaceAudience.Private<a name="line.549"></a>
+<span class="sourceLineNo">550</span> protected synchronized boolean removeStackIndex() {<a name="line.550"></a>
+<span class="sourceLineNo">551</span> if (stackIndexes.length > 1) {<a name="line.551"></a>
+<span class="sourceLineNo">552</span> stackIndexes = Arrays.copyOf(stackIndexes, stackIndexes.length - 1);<a name="line.552"></a>
+<span class="sourceLineNo">553</span> return false;<a name="line.553"></a>
+<span class="sourceLineNo">554</span> } else {<a name="line.554"></a>
+<span class="sourceLineNo">555</span> stackIndexes = null;<a name="line.555"></a>
+<span class="sourceLineNo">556</span> return true;<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><a name="line.559"></a>
+<span class="sourceLineNo">560</span> /**<a name="line.560"></a>
+<span class="sourceLineNo">561</span> * Called on store load to initialize the Procedure internals after<a name="line.561"></a>
+<span class="sourceLineNo">562</span> * the creation/deserialization.<a name="line.562"></a>
+<span class="sourceLineNo">563</span> */<a name="line.563"></a>
<span class="sourceLineNo">564</span> @InterfaceAudience.Private<a name="line.564"></a>
-<span class="sourceLineNo">565</span> protected synchronized int[] getStackIndexes() {<a name="line.565"></a>
-<span class="sourceLineNo">566</span> return stackIndexes;<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> @Override<a name="line.569"></a>
-<span class="sourceLineNo">570</span> public int compareTo(final Procedure other) {<a name="line.570"></a>
-<span class="sourceLineNo">571</span> long diff = getProcId() - other.getProcId();<a name="line.571"></a>
-<span class="sourceLineNo">572</span> return (diff < 0) ? -1 : (diff > 0) ? 1 : 0;<a name="line.572"></a>
-<span class="sourceLineNo">573</span> }<a name="line.573"></a>
-<span class="sourceLineNo">574</span><a name="line.574"></a>
-<span class="sourceLineNo">575</span> /**<a name="line.575"></a>
-<span class="sourceLineNo">576</span> * Get an hashcode for the specified Procedure ID<a name="line.576"></a>
-<span class="sourceLineNo">577</span> * @return the hashcode for the specified procId<a name="line.577"></a>
-<span class="sourceLineNo">578</span> */<a name="line.578"></a>
-<span class="sourceLineNo">579</span> public static long getProcIdHashCode(final long procId) {<a name="line.579"></a>
-<span class="sourceLineNo">580</span> long h = procId;<a name="line.580"></a>
-<span class="sourceLineNo">581</span> h ^= h >> 16;<a name="line.581"></a>
-<span class="sourceLineNo">582</span> h *= 0x85ebca6b;<a name="line.582"></a>
-<span class="sourceLineNo">583</span> h ^= h >> 13;<a name="line.583"></a>
-<span class="sourceLineNo">584</span> h *= 0xc2b2ae35;<a name="line.584"></a>
-<span class="sourceLineNo">585</span> h ^= h >> 16;<a name="line.585"></a>
-<span class="sourceLineNo">586</span> return h;<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> /*<a name="line.589"></a>
-<span class="sourceLineNo">590</span> * Helper to lookup the root Procedure ID given a specified procedure.<a name="line.590"></a>
+<span class="sourceLineNo">565</span> protected synchronized void setStackIndexes(final List<Integer> stackIndexes) {<a name="line.565"></a>
+<span class="sourceLineNo">566</span> this.stackIndexes = new int[stackIndexes.size()];<a name="line.566"></a>
+<span class="sourceLineNo">567</span> for (int i = 0; i < this.stackIndexes.length; ++i) {<a name="line.567"></a>
+<span class="sourceLineNo">568</span> this.stackIndexes[i] = stackIndexes.get(i);<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><a name="line.571"></a>
+<span class="sourceLineNo">572</span> @InterfaceAudience.Private<a name="line.572"></a>
+<span class="sourceLineNo">573</span> protected synchronized boolean wasExecuted() {<a name="line.573"></a>
+<span class="sourceLineNo">574</span> return stackIndexes != null;<a name="line.574"></a>
+<span class="sourceLineNo">575</span> }<a name="line.575"></a>
+<span class="sourceLineNo">576</span><a name="line.576"></a>
+<span class="sourceLineNo">577</span> @InterfaceAudience.Private<a name="line.577"></a>
+<span class="sourceLineNo">578</span> protected synchronized int[] getStackIndexes() {<a name="line.578"></a>
+<span class="sourceLineNo">579</span> return stackIndexes;<a name="line.579"></a>
+<span class="sourceLineNo">580</span> }<a name="line.580"></a>
+<span class="sourceLineNo">581</span><a name="line.581"></a>
+<span class="sourceLineNo">582</span> @Override<a name="line.582"></a>
+<span class="sourceLineNo">583</span> public int compareTo(final Procedure other) {<a name="line.583"></a>
+<span class="sourceLineNo">584</span> long diff = getProcId() - other.getProcId();<a name="line.584"></a>
+<span class="sourceLineNo">585</span> return (diff < 0) ? -1 : (diff > 0) ? 1 : 0;<a name="line.585"></a>
+<span class="sourceLineNo">586</span> }<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> * Get an hashcode for the specified Procedure ID<a name="line.589"></a>
+<span class="sourceLineNo">590</span> * @return the hashcode for the specified procId<a name="line.590"></a>
<span class="sourceLineNo">591</span> */<a name="line.591"></a>
-<span class="sourceLineNo">592</span> @InterfaceAudience.Private<a name="line.592"></a>
-<span class="sourceLineNo">593</span> protected static Long getRootProcedureId(final Map<Long, Procedure> procedures, Procedure proc) {<a name="line.593"></a>
-<span class="sourceLineNo">594</span> while (proc.hasParent()) {<a name="line.594"></a>
-<span class="sourceLineNo">595</span> proc = procedures.get(proc.getParentProcId());<a name="line.595"></a>
-<span class="sourceLineNo">596</span> if (proc == null) return null;<a name="line.596"></a>
-<span class="sourceLineNo">597</span> }<a name="line.597"></a>
-<span class="sourceLineNo">598</span> return proc.getProcId();<a name="line.598"></a>
-<span class="sourceLineNo">599</span> }<a name="line.599"></a>
-<span class="sourceLineNo">600</span><a name="line.600"></a>
-<span class="sourceLineNo">601</span> protected static Procedure newInstance(final String className) throws IOException {<a name="line.601"></a>
-<span class="sourceLineNo">602</span> try {<a name="line.602"></a>
-<span class="sourceLineNo">603</span> Class<?> clazz = Class.forName(className);<a name="line.603"></a>
-<span class="sourceLineNo">604</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.604"></a>
-<span class="sourceLineNo">605</span> throw new Exception("the " + clazz + " class is not public");<a name="line.605"></a>
-<span class="sourceLineNo">606</span> }<a name="line.606"></a>
-<span class="sourceLineNo">607</span><a name="line.607"></a>
-<span class="sourceLineNo">608</span> Constructor<?> ctor = clazz.getConstructor();<a name="line.608"></a>
-<span class="sourceLineNo">609</span> assert ctor != null : "no constructor found";<a name="line.609"></a>
-<span class="sourceLineNo">610</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.610"></a>
-<span class="sourceLineNo">611</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.611"></a>
-<span class="sourceLineNo">612</span> }<a name="line.612"></a>
-<span class="sourceLineNo">613</span> return (Procedure)ctor.newInstance();<a name="line.613"></a>
-<span class="sourceLineNo">614</span> } catch (Exception e) {<a name="line.614"></a>
-<span class="sourceLineNo">615</span> throw new IOException("The procedure class " + className +<a name="line.615"></a>
-<span class="sourceLineNo">616</span> " must be accessible and have an empty constructor", e);<a name="line.616"></a>
-<span class="sourceLineNo">617</span> }<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> protected static void validateClass(final Procedure proc) throws IOException {<a name="line.620"></a>
-<span class="sourceLineNo">621</span> try {<a name="line.621"></a>
-<span class="sourceLineNo">622</span> Class<?> clazz = proc.getClass();<a name="line.622"></a>
-<span class="sourceLineNo">623</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.623"></a>
-<span class="sourceLineNo">624</span> throw new Exception("the " + clazz + " class is not public");<a name="line.624"></a>
+<span class="sourceLineNo">592</span> public static long getProcIdHashCode(final long procId) {<a name="line.592"></a>
+<span class="sourceLineNo">593</span> long h = procId;<a name="line.593"></a>
+<span class="sourceLineNo">594</span> h ^= h >> 16;<a name="line.594"></a>
+<span class="sourceLineNo">595</span> h *= 0x85ebca6b;<a name="line.595"></a>
+<span class="sourceLineNo">596</span> h ^= h >> 13;<a name="line.596"></a>
+<span class="sourceLineNo">597</span> h *= 0xc2b2ae35;<a name="line.597"></a>
+<span class="sourceLineNo">598</span> h ^= h >> 16;<a name="line.598"></a>
+<span class="sourceLineNo">599</span> return h;<a name="line.599"></a>
+<span class="sourceLineNo">600</span> }<a name="line.600"></a>
+<span class="sourceLineNo">601</span><a name="line.601"></a>
+<span class="sourceLineNo">602</span> /*<a name="line.602"></a>
+<span class="sourceLineNo">603</span> * Helper to lookup the root Procedure ID given a specified procedure.<a name="line.603"></a>
+<span class="sourceLineNo">604</span> */<a name="line.604"></a>
+<span class="sourceLineNo">605</span> @InterfaceAudience.Private<a name="line.605"></a>
+<span class="sourceLineNo">606</span> protected static Long getRootProcedureId(final Map<Long, Procedure> procedures, Procedure proc) {<a name="line.606"></a>
+<span class="sourceLineNo">607</span> while (proc.hasParent()) {<a name="line.607"></a>
+<span class="sourceLineNo">608</span> proc = procedures.get(proc.getParentProcId());<a name="line.608"></a>
+<span class="sourceLineNo">609</span> if (proc == null) return null;<a name="line.609"></a>
+<span class="sourceLineNo">610</span> }<a name="line.610"></a>
+<span class="sourceLineNo">611</span> return proc.getProcId();<a name="line.611"></a>
+<span class="sourceLineNo">612</span> }<a name="line.612"></a>
+<span class="sourceLineNo">613</span><a name="line.613"></a>
+<span class="sourceLineNo">614</span> protected static Procedure newInstance(final String className) throws IOException {<a name="line.614"></a>
+<span class="sourceLineNo">615</span> try {<a name="line.615"></a>
+<span class="sourceLineNo">616</span> Class<?> clazz = Class.forName(className);<a name="line.616"></a>
+<span class="sourceLineNo">617</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.617"></a>
+<span class="sourceLineNo">618</span> throw new Exception("the " + clazz + " class is not public");<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> Constructor<?> ctor = clazz.getConstructor();<a name="line.621"></a>
+<span class="sourceLineNo">622</span> assert ctor != null : "no constructor found";<a name="line.622"></a>
+<span class="sourceLineNo">623</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.623"></a>
+<span class="sourceLineNo">624</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.624"></a>
<span class="sourceLineNo">625</span> }<a name="line.625"></a>
-<span class="sourceLineNo">626</span><a name="line.626"></a>
-<span class="sourceLineNo">627</span> Constructor<?> ctor = clazz.getConstructor();<a name="line.627"></a>
-<span class="sourceLineNo">628</span> assert ctor != null;<a name="line.628"></a>
-<span class="sourceLineNo">629</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.629"></a>
-<span class="sourceLineNo">630</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.630"></a>
-<span class="sourceLineNo">631</span> }<a name="line.631"></a>
-<span class="sourceLineNo">632</span> } catch (Exception e) {<a name="line.632"></a>
-<span class="sourceLineNo">633</span> throw new IOException("The procedure class " + proc.getClass().getName() +<a name="line.633"></a>
-<span class="sourceLineNo">634</span> " must be accessible and have an empty constructor", e);<a name="line.634"></a>
-<span class="sourceLineNo">635</span> }<a name="line.635"></a>
-<span class="sourceLineNo">636</span> }<a name="line.636"></a>
-<span class="sourceLineNo">637</span><a name="line.637"></a>
-<span class="sourceLineNo">638</span> /**<a name="line.638"></a>
-<span class="sourceLineNo">639</span> * Helper to create the ProcedureInfo from Procedure.<a name="line.639"></a>
-<span class="sourceLineNo">640</span> */<a name="line.640"></a>
-<span class="sourceLineNo">641</span> @InterfaceAudience.Private<a name="line.641"></a>
-<span class="sourceLineNo">642</span> public static ProcedureInfo createProcedureInfo(final Procedure proc, final NonceKey nonceKey) {<a name="line.642"></a>
-<span class="sourceLineNo">643</span> RemoteProcedureException exception = proc.hasException() ? proc.getException() : null;<a name="line.643"></a>
-<span class="sourceLineNo">644</span> return new ProcedureInfo(<a name="line.644"></a>
-<span class="sourceLineNo">645</span> proc.getProcId(),<a name="line.645"></a>
-<span class="sourceLineNo">646</span> proc.toStringClass(),<a name="line.646"></a>
-<span class="sourceLineNo">647</span> proc.getOwner(),<a name="line.647"></a>
-<span class="sourceLineNo">648</span> proc.getState(),<a name="line.648"></a>
-<span class="sourceLineNo">649</span> proc.hasParent() ? proc.getParentProcId() : -1,<a name="line.649"></a>
-<span class="sourceLineNo">650</span> nonceKey,<a name="line.650"></a>
-<span class="sourceLineNo">651</span> exception != null ?<a name="line.651"></a>
-<span class="sourceLineNo">652</span> RemoteProcedureException.toProto(exception.getSource(), exception.getCause()) : null,<a name="line.652"></a>
-<span class="sourceLineNo">653</span> proc.getLastUpdate(),<a name="line.653"></a>
-<span class="sourceLineNo">654</span> proc.getStartTime(),<a name="line.654"></a>
-<span class="sourceLineNo">655</span> proc.getResult());<a name="line.655"></a>
-<span class="sourceLineNo">656</span> }<a name="line.656"></a>
-<span class="sourceLineNo">657</span><a name="line.657"></a>
-<span class="sourceLineNo">658</span> /**<a name="line.658"></a>
-<span class="sourceLineNo">659</span> * Helper to convert the procedure to protobuf.<a name="line.659"></a>
-<span class="sourceLineNo">660</span> * Used by ProcedureStore implementations.<a name="line.660"></a>
-<span class="sourceLineNo">661</span> */<a name="line.661"></a>
-<span class="sourceLineNo">662</span> @InterfaceAudience.Private<a name="line.662"></a>
-<span class="sourceLineNo">663</span> public static ProcedureProtos.Procedure convert(final Procedure proc)<a name="line.663"></a>
-<span class="sourceLineNo">664</span> throws IOException {<a name="line.664"></a>
-<span class="sourceLineNo">665</span> Preconditions.checkArgument(proc != null);<a name="line.665"></a>
-<span class="sourceLineNo">666</span> validateClass(proc);<a name="line.666"></a>
-<span class="sourceLineNo">667</span><a name="line.667"></a>
-<span class="sourceLineNo">668</span> ProcedureProtos.Procedure.Builder builder = ProcedureProtos.Procedure.newBuilder()<a name="line.668"></a>
-<span class="sourceLineNo">669</span> .setClassName(proc.getClass().getName())<a name="line.669"></a>
-<span class="sourceLineNo">670</span> .setProcId(proc.getProcId())<a name="line.670"></a>
-<span class="sourceLineNo">671</span> .setState(proc.getState())<a name="line.671"></a>
-<span class="sourceLineNo">672</span> .setStartTime(proc.getStartTime())<a name="line.672"></a>
-<span class="sourceLineNo">673</span> .setLastUpdate(proc.getLastUpdate());<a name="line.673"></a>
-<span class="sourceLineNo">674</span><a name="line.674"></a>
-<span class="sourceLineNo">675</span> if (proc.hasParent()) {<a name="line.675"></a>
-<span class="sourceLineNo">676</span> builder.setParentId(proc.getParentProcId());<a name="line.676"></a>
-<span class="sourceLineNo">677</span> }<a name="line.677"></a>
-<span class="sourceLineNo">678</span><a name="line.678"></a>
-<span class="sourceLineNo">679</span> if (proc.hasTimeout()) {<a name="line.679"></a>
-<span class="sourceLineNo">680</span> builder.setTimeout(proc.getTimeout());<a name="line.680"></a>
-<span class="sourceLineNo">681</span> }<a name="line.681"></a>
-<span class="sourceLineNo">682</span><a name="line.682"></a>
-<span class="sourceLineNo">683</span> if (proc.hasOwner()) {<a name="line.683"></a>
-<span class="sourceLineNo">684</span> builder.setOwner(proc.getOwner());<a name="line.684"></a>
-<span class="sourceLineNo">685</span> }<a name="line.685"></a>
-<span class="sourceLineNo">686</span><a name="line.686"></a>
-<span class="sourceLineNo">687</span> int[] stackIds = proc.getStackIndexes();<a name="line.687"></a>
-<span class="sourceLineNo">688</span> if (stackIds != null) {<a name="line.688"></a>
-<span class="sourceLineNo">689</span> for (int i = 0; i < stackIds.length; ++i) {<a name="line.689"></a>
-<span class="sourceLineNo">690</span> builder.addStackId(stackIds[i]);<a name="line.690"></a>
-<span class="sourceLineNo">691</span> }<a name="line.691"></a>
-<span class="sourceLineNo">692</span> }<a name="line.692"></a>
-<span class="sourceLineNo">693</span><a name="line.693"></a>
-<span class="sourceLineNo">694</span> if (proc.hasException()) {<a name="line.694"></a>
-<span class="sourceLineNo">695</span> RemoteProcedureException exception = proc.getException();<a name="line.695"></a>
-<span class="sourceLineNo">696</span> builder.setException(<a name="line.696"></a>
-<span class="sourceLineNo">697</span> RemoteProcedureException.toProto(exception.getSource(), exception.getCause()));<a name="line.697"></a>
+<span class="sourceLineNo">626</span> return (Procedure)ctor.newInstance();<a name="line.626"></a>
+<span class="sourceLineNo">627</span> } catch (Exception e) {<a name="line.627"></a>
+<span class="sourceLineNo">628</span> throw new IOException("The procedure class " + className +<a name="line.628"></a>
+<span class="sourceLineNo">629</span> " must be accessible and have an empty constructor", e);<a name="line.629"></a>
+<span class="sourceLineNo">630</span> }<a name="line.630"></a>
+<span class="sourceLineNo">631</span> }<a name="line.631"></a>
+<span class="sourceLineNo">632</span><a name="line.632"></a>
+<span class="sourceLineNo">633</span> protected static void validateClass(final Procedure proc) throws IOException {<a name="line.633"></a>
+<span class="sourceLineNo">634</span> try {<a name="line.634"></a>
+<span class="sourceLineNo">635</span> Class<?> clazz = proc.getClass();<a name="line.635"></a>
+<span class="sourceLineNo">636</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.636"></a>
+<span class="sourceLineNo">637</span> throw new Exception("the " + clazz + " class is not public");<a name="line.637"></a>
+<span class="sourceLineNo">638</span> }<a name="line.638"></a>
+<span class="sourceLineNo">639</span><a name="line.639"></a>
+<span class="sourceLineNo">640</span> Constructor<?> ctor = clazz.getConstructor();<a name="line.640"></a>
+<span class="sourceLineNo">641</span> assert ctor != null;<a name="line.641"></a>
+<span class="sourceLineNo">642</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.642"></a>
+<span class="sourceLineNo">643</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.643"></a>
+<span class="sourceLineNo">644</span> }<a name="line.644"></a>
+<span class="sourceLineNo">645</span> } catch (Exception e) {<a name="line.645"></a>
+<span class="sourceLineNo">646</span> throw new IOException("The procedure class " + proc.getClass().getName() +<a name="line.646"></a>
+<span class="sourceLineNo">647</span> " must be accessible and have an empty constructor", e);<a name="line.647"></a>
+<span class="sourceLineNo">648</span> }<a name="line.648"></a>
+<span class="sourceLineNo">649</span> }<a name="line.649"></a>
+<span class="sourceLineNo">650</span><a name="line.650"></a>
+<span class="sourceLineNo">651</span> /**<a name="line.651"></a>
+<span class="sourceLineNo">652</span> * Helper to create the ProcedureInfo from Procedure.<a name="line.652"></a>
+<span class="sourceLineNo">653</span> */<a name="line.653"></a>
+<span class="sourceLineNo">654</span> @InterfaceAudience.Private<a name="line.654"></a>
+<span class="sourceLineNo">655</span> public static ProcedureInfo createProcedureInfo(final Procedure proc, final NonceKey nonceKey) {<a name="line.655"></a>
+<span class="sourceLineNo">656</span> RemoteProcedureException exception = proc.hasException() ? proc.getException() : null;<a name="line.656"></a>
+<span class="sourceLineNo">657</span> return new ProcedureInfo(<a name="line.657"></a>
+<span class="sourceLineNo">658</span> proc.getProcId(),<a name="line.658"></a>
+<span class="sourceLineNo">659</span> proc.toStringClass(),<a name="line.659"></a>
+<span class="sourceLineNo">660</span> proc.getOwner(),<a name="line.660"></a>
+<span class="sourceLineNo">661</span> proc.getState(),<a name="line.661"></a>
+<span class="sourceLineNo">662</span> proc.hasParent() ? proc.getParentProcId() : -1,<a name="line.662"></a>
+<span class="sourceLineNo">663</span> nonceKey,<a name="line.663"></a>
+<span class="sourceLineNo">664</span> exception != null ?<a name="line.664"></a>
+<span class="sourceLineNo">665</span> RemoteProcedureException.toProto(exception.getSource(), exception.getCause()) : null,<a name="line.665"></a>
+<span class="sourceLineNo">666</span> proc.getLastUpdate(),<a name="line.666"></a>
+<span class="sourceLineNo">667</span> proc.getStartTime(),<a name="line.667"></a>
+<span class="sourceLineNo">668</span> proc.getResult());<a name="line.668"></a>
+<span class="sourceLineNo">669</span> }<a name="line.669"></a>
+<span class="sourceLineNo">670</span><a name="line.670"></a>
+<span class="sourceLineNo">671</span> /**<a name="line.671"></a>
+<span class="sourceLineNo">672</span> * Helper to convert the procedure to protobuf.<a name="line.672"></a>
+<span class="sourceLineNo">673</span> * Used by ProcedureStore implementations.<a name="line.673"></a>
+<span class="sourceLineNo">674</span> */<a name="line.674"></a>
+<span class="sourceLineNo">675</span> @InterfaceAudience.Private<a name="line.675"></a>
+<span class="sourceLineNo">676</span> public static ProcedureProtos.Procedure convert(final Procedure proc)<a name="line.676"></a>
+<span class="sourceLineNo">677</span> throws IOException {<a name="line.677"></a>
+<span class="sourceLineNo">678</span> Preconditions.checkArgument(proc != null);<a name="line.678"></a>
+<span class="sourceLineNo">679</span> validateClass(proc);<a name="line.679"></a>
+<span class="sourceLineNo">680</span><a name="line.680"></a>
+<span class="sourceLineNo">681</span> ProcedureProtos.Procedure.Builder builder = ProcedureProtos.Procedure.newBuilder()<a name="line.681"></a>
+<span class="sourceLineNo">682</span> .setClassName(proc.getClass().getName())<a name="line.682"></a>
+<span class="sourceLineNo">683</span> .setProcId(proc.getProcId())<a name="line.683"></a>
+<span class="sourceLineNo">684</span> .setState(proc.getState())<a name="line.684"></a>
+<span class="sourceLineNo">685</span> .setStartTime(proc.getStartTime())<a name="line.685"></a>
+<span class="sourceLineNo">686</span> .setLastUpdate(proc.getLastUpdate());<a name="line.686"></a>
+<span class="sourceLineNo">687</span><a name="line.687"></a>
+<span class="sourceLineNo">688</span> if (proc.hasParent()) {<a name="line.688"></a>
+<span class="sourceLineNo">689</span> builder.setParentId(proc.getParentProcId());<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> if (proc.hasTimeout()) {<a name="line.692"></a>
+<span class="sourceLineNo">693</span> builder.setTimeout(proc.getTimeout());<a name="line.693"></a>
+<span class="sourceLineNo">694</span> }<a name="line.694"></a>
+<span class="sourceLineNo">695</span><a name="line.695"></a>
+<span class="sourceLineNo">696</span> if (proc.hasOwner()) {<a name="line.696"></a>
+<span class="sourceLineNo">697</span> builder.setOwner(proc.getOwner());<a name="line.697"></a>
<span class="sourceLineNo">698</span> }<a name="li
<TRUNCATED>