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 2016/02/09 18:28:01 UTC
[15/51] [partial] hbase-site git commit: Published site at
7bb68b9031591cf378954a0eb8f71a8b9be01f9c.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/358717f6/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.MutationBatch.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.MutationBatch.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.MutationBatch.html
index d266952..fbdde18 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.MutationBatch.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.MutationBatch.html
@@ -7,36 +7,36 @@
<body>
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-<span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a>
-<span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a>
-<span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a>
-<span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a>
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-<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a>
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+<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
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-<span class="sourceLineNo">202</span>@InterfaceAudience.Private<a name="line.202"></a>
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+<span class="sourceLineNo">198</span>@SuppressWarnings("deprecation")<a name="line.198"></a>
+<span class="sourceLineNo">199</span>@InterfaceAudience.Private<a name="line.199"></a>
+<span class="sourceLineNo">200</span>public class HRegion implements HeapSize, PropagatingConfigurationObserver, Region {<a name="line.200"></a>
+<span class="sourceLineNo">201</span> private static final Log LOG = LogFactory.getLog(HRegion.class);<a name="line.201"></a>
+<span class="sourceLineNo">202</span><a name="line.202"></a>
+<span class="sourceLineNo">203</span> public static final String LOAD_CFS_ON_DEMAND_CONFIG_KEY =<a name="line.203"></a>
+<span class="sourceLineNo">204</span> "hbase.hregion.scan.loadColumnFamiliesOnDemand";<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
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-<span class="sourceLineNo">208</span><a name="line.208"></a>
-<span class="sourceLineNo">209</span> /**<a name="line.209"></a>
-<span class="sourceLineNo">210</span> * Longest time we'll wait on a sequenceid.<a name="line.210"></a>
-<span class="sourceLineNo">211</span> * Sequenceid comes up out of the WAL subsystem. WAL subsystem can go bad or a test might use<a name="line.211"></a>
-<span class="sourceLineNo">212</span> * it without cleaning up previous usage properly; generally, a WAL roll is needed. The timeout<a name="line.212"></a>
-<span class="sourceLineNo">213</span> * is for a latch in WALKey. There is no global accounting of outstanding WALKeys; intentionally<a name="line.213"></a>
-<span class="sourceLineNo">214</span> * to avoid contention, but it makes it so if an abort or problem, we could be stuck waiting<a name="line.214"></a>
-<span class="sourceLineNo">215</span> * on the WALKey latch. Revisit.<a name="line.215"></a>
-<span class="sourceLineNo">216</span> */<a name="line.216"></a>
-<span class="sourceLineNo">217</span> private final int maxWaitForSeqId;<a name="line.217"></a>
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-<span class="sourceLineNo">219</span> private static final int DEFAULT_MAX_WAIT_FOR_SEQ_ID = 30000;<a name="line.219"></a>
+<span class="sourceLineNo">206</span> /**<a name="line.206"></a>
+<span class="sourceLineNo">207</span> * This is the global default value for durability. All tables/mutations not<a name="line.207"></a>
+<span class="sourceLineNo">208</span> * defining a durability or using USE_DEFAULT will default to this value.<a name="line.208"></a>
+<span class="sourceLineNo">209</span> */<a name="line.209"></a>
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+<span class="sourceLineNo">211</span><a name="line.211"></a>
+<span class="sourceLineNo">212</span> final AtomicBoolean closed = new AtomicBoolean(false);<a name="line.212"></a>
+<span class="sourceLineNo">213</span><a name="line.213"></a>
+<span class="sourceLineNo">214</span> /* Closing can take some time; use the closing flag if there is stuff we don't<a name="line.214"></a>
+<span class="sourceLineNo">215</span> * want to do while in closing state; e.g. like offer this region up to the<a name="line.215"></a>
+<span class="sourceLineNo">216</span> * master as a region to close if the carrying regionserver is overloaded.<a name="line.216"></a>
+<span class="sourceLineNo">217</span> * Once set, it is never cleared.<a name="line.217"></a>
+<span class="sourceLineNo">218</span> */<a name="line.218"></a>
+<span class="sourceLineNo">219</span> final AtomicBoolean closing = new AtomicBoolean(false);<a name="line.219"></a>
<span class="sourceLineNo">220</span><a name="line.220"></a>
<span class="sourceLineNo">221</span> /**<a name="line.221"></a>
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-<span class="sourceLineNo">223</span> * defining a durability or using USE_DEFAULT will default to this value.<a name="line.223"></a>
+<span class="sourceLineNo">222</span> * The max sequence id of flushed data on this region. There is no edit in memory that is<a name="line.222"></a>
+<span class="sourceLineNo">223</span> * less that this sequence id.<a name="line.223"></a>
<span class="sourceLineNo">224</span> */<a name="line.224"></a>
-<span class="sourceLineNo">225</span> private static final Durability DEFAULT_DURABILITY = Durability.SYNC_WAL;<a name="line.225"></a>
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+<span class="sourceLineNo">236</span> * to skip entries before this due to the possibility of replay edits coming out of order from<a name="line.236"></a>
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+<span class="sourceLineNo">242</span> //////////////////////////////////////////////////////////////////////////////<a name="line.242"></a>
+<span class="sourceLineNo">243</span> // Members<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>
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+<span class="sourceLineNo">248</span> // - the thread that owns the lock (allow reentrancy)<a name="line.248"></a>
+<span class="sourceLineNo">249</span> // - reference count of (reentrant) locks held by the thread<a name="line.249"></a>
+<span class="sourceLineNo">250</span> // - the row itself<a name="line.250"></a>
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-<span class="sourceLineNo">259</span> //////////////////////////////////////////////////////////////////////////////<a name="line.259"></a>
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-<span class="sourceLineNo">263</span> // - the thread that owns the lock (allow reentrancy)<a name="line.263"></a>
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-<span class="sourceLineNo">273</span> private Map<String, Service> coprocessorServiceHandlers = Maps.newHashMap();<a name="line.273"></a>
+<span class="sourceLineNo">257</span> // TODO: account for each registered handler in HeapSize computation<a name="line.257"></a>
+<span class="sourceLineNo">258</span> private Map<String, Service> coprocessorServiceHandlers = Maps.newHashMap();<a name="line.258"></a>
+<span class="sourceLineNo">259</span><a name="line.259"></a>
+<span class="sourceLineNo">260</span> private final AtomicLong memstoreSize = new AtomicLong(0);<a name="line.260"></a>
+<span class="sourceLineNo">261</span><a name="line.261"></a>
+<span class="sourceLineNo">262</span> // Debug possible data loss due to WAL off<a name="line.262"></a>
+<span class="sourceLineNo">263</span> final Counter numMutationsWithoutWAL = new Counter();<a name="line.263"></a>
+<span class="sourceLineNo">264</span> final Counter dataInMemoryWithoutWAL = new Counter();<a name="line.264"></a>
+<span class="sourceLineNo">265</span><a name="line.265"></a>
+<span class="sourceLineNo">266</span> // Debug why CAS operations are taking a while.<a name="line.266"></a>
+<span class="sourceLineNo">267</span> final Counter checkAndMutateChecksPassed = new Counter();<a name="line.267"></a>
+<span class="sourceLineNo">268</span> final Counter checkAndMutateChecksFailed = new Counter();<a name="line.268"></a>
+<span class="sourceLineNo">269</span><a name="line.269"></a>
+<span class="sourceLineNo">270</span> // Number of requests<a name="line.270"></a>
+<span class="sourceLineNo">271</span> final Counter readRequestsCount = new Counter();<a name="line.271"></a>
+<span class="sourceLineNo">272</span> final Counter filteredReadRequestsCount = new Counter();<a name="line.272"></a>
+<span class="sourceLineNo">273</span> final Counter writeRequestsCount = new Counter();<a name="line.273"></a>
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-<span class="sourceLineNo">277</span> // Debug possible data loss due to WAL off<a name="line.277"></a>
-<span class="sourceLineNo">278</span> final Counter numMutationsWithoutWAL = new Counter();<a name="line.278"></a>
-<span class="sourceLineNo">279</span> final Counter dataInMemoryWithoutWAL = new Counter();<a name="line.279"></a>
-<span class="sourceLineNo">280</span><a name="line.280"></a>
-<span class="sourceLineNo">281</span> // Debug why CAS operations are taking a while.<a name="line.281"></a>
-<span class="sourceLineNo">282</span> final Counter checkAndMutateChecksPassed = new Counter();<a name="line.282"></a>
-<span class="sourceLineNo">283</span> final Counter checkAndMutateChecksFailed = new Counter();<a name="line.283"></a>
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-<span class="sourceLineNo">285</span> //Number of requests<a name="line.285"></a>
-<span class="sourceLineNo">286</span> final Counter readRequestsCount = new Counter();<a name="line.286"></a>
-<span class="sourceLineNo">287</span> final Counter filteredReadRequestsCount = new Counter();<a name="line.287"></a>
-<span class="sourceLineNo">288</span> final Counter writeRequestsCount = new Counter();<a name="line.288"></a>
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-<span class="sourceLineNo">290</span> // Number of requests blocked by memstore size.<a name="line.290"></a>
-<span class="sourceLineNo">291</span> private final Counter blockedRequestsCount = new Counter();<a name="line.291"></a>
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-<span class="sourceLineNo">293</span> // Compaction counters<a name="line.293"></a>
-<span class="sourceLineNo">294</span> final AtomicLong compactionsFinished = new AtomicLong(0L);<a name="line.294"></a>
-<span class="sourceLineNo">295</span> final AtomicLong compactionNumFilesCompacted = new AtomicLong(0L);<a name="line.295"></a>
-<span class="sourceLineNo">296</span> final AtomicLong compactionNumBytesCompacted = new AtomicLong(0L);<a name="line.296"></a>
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-<span class="sourceLineNo">306</span> // The internal wait duration to acquire a lock before read/update<a name="line.306"></a>
-<span class="sourceLineNo">307</span> // from the region. It is not per row. The purpose of this wait time<a name="line.307"></a>
-<span class="sourceLineNo">308</span> // is to avoid waiting a long time while the region is busy, so that<a name="line.308"></a>
-<span class="sourceLineNo">309</span> // we can release the IPC handler soon enough to improve the<a name="line.309"></a>
-<span class="sourceLineNo">310</span> // availability of the region server. It can be adjusted by<a name="line.310"></a>
-<span class="sourceLineNo">311</span> // tuning configuration "hbase.busy.wait.duration".<a name="line.311"></a>
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+<span class="sourceLineNo">276</span> private final Counter blockedRequestsCount = new Counter();<a name="line.276"></a>
+<span class="sourceLineNo">277</span><a name="line.277"></a>
+<span class="sourceLineNo">278</span> // Compaction counters<a name="line.278"></a>
+<span class="sourceLineNo">279</span> final AtomicLong compactionsFinished = new AtomicLong(0L);<a name="line.279"></a>
+<span class="sourceLineNo">280</span> final AtomicLong compactionNumFilesCompacted = new AtomicLong(0L);<a name="line.280"></a>
+<span class="sourceLineNo">281</span> final AtomicLong compactionNumBytesCompacted = new AtomicLong(0L);<a name="line.281"></a>
+<span class="sourceLineNo">282</span><a name="line.282"></a>
+<span class="sourceLineNo">283</span> private final WAL wal;<a name="line.283"></a>
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+<span class="sourceLineNo">286</span> private final Configuration baseConf;<a name="line.286"></a>
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+<span class="sourceLineNo">288</span> private CompactedHFilesDischarger compactedFileDischarger;<a name="line.288"></a>
+<span class="sourceLineNo">289</span> static final int DEFAULT_ROWLOCK_WAIT_DURATION = 30000;<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
+<span class="sourceLineNo">291</span> // The internal wait duration to acquire a lock before read/update<a name="line.291"></a>
+<span class="sourceLineNo">292</span> // from the region. It is not per row. The purpose of this wait time<a name="line.292"></a>
+<span class="sourceLineNo">293</span> // is to avoid waiting a long time while the region is busy, so that<a name="line.293"></a>
+<span class="sourceLineNo">294</span> // we can release the IPC handler soon enough to improve the<a name="line.294"></a>
+<span class="sourceLineNo">295</span> // availability of the region server. It can be adjusted by<a name="line.295"></a>
+<span class="sourceLineNo">296</span> // tuning configuration "hbase.busy.wait.duration".<a name="line.296"></a>
+<span class="sourceLineNo">297</span> final long busyWaitDuration;<a name="line.297"></a>
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+<span class="sourceLineNo">299</span><a name="line.299"></a>
+<span class="sourceLineNo">300</span> // If updating multiple rows in one call, wait longer,<a name="line.300"></a>
+<span class="sourceLineNo">301</span> // i.e. waiting for busyWaitDuration * # of rows. However,<a name="line.301"></a>
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+<span class="sourceLineNo">304</span><a name="line.304"></a>
+<span class="sourceLineNo">305</span> // Max busy wait duration. There is no point to wait longer than the RPC<a name="line.305"></a>
+<span class="sourceLineNo">306</span> // purge timeout, when a RPC call will be terminated by the RPC engine.<a name="line.306"></a>
+<span class="sourceLineNo">307</span> final long maxBusyWaitDuration;<a name="line.307"></a>
+<span class="sourceLineNo">308</span><a name="line.308"></a>
+<span class="sourceLineNo">309</span> // negative number indicates infinite timeout<a name="line.309"></a>
+<span class="sourceLineNo">310</span> static final long DEFAULT_ROW_PROCESSOR_TIMEOUT = 60 * 1000L;<a name="line.310"></a>
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+<span class="sourceLineNo">312</span><a name="line.312"></a>
+<span class="sourceLineNo">313</span> private final ConcurrentHashMap<RegionScanner, Long> scannerReadPoints;<a name="line.313"></a>
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-<span class="sourceLineNo">315</span> // If updating multiple rows in one call, wait longer,<a name="line.315"></a>
-<span class="sourceLineNo">316</span> // i.e. waiting for busyWaitDuration * # of rows. However,<a name="line.316"></a>
-<span class="sourceLineNo">317</span> // we can limit the max multiplier.<a name="line.317"></a>
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+<span class="sourceLineNo">317</span> */<a name="line.317"></a>
+<span class="sourceLineNo">318</span> private long openSeqNum = HConstants.NO_SEQNUM;<a name="line.318"></a>
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-<span class="sourceLineNo">347</span> // the maxSeqId up to which the store was flushed. And, skip the edits which<a name="line.347"></a>
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-<span class="sourceLineNo">349</span> // The following map is populated when opening the region<a name="line.349"></a>
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-<span class="sourceLineNo">368</span> * read operation.<a name="line.368"></a>
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