Repository: hbase-site Updated Branches: refs/heads/asf-site e30fbb6e0 -> c05716767
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c0571676/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushHandler.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushHandler.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushHandler.html index 8596033..dcc23e0 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushHandler.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushHandler.html @@ -54,7 +54,7 @@ <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.HConstants;<a name="line.46"></a> <span class="sourceLineNo">047</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.47"></a> <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.regionserver.Region.FlushResult;<a name="line.49"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.regionserver.HRegion.FlushResult;<a name="line.49"></a> <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.shaded.com.google.common.base.Preconditions;<a name="line.50"></a> <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.51"></a> <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.52"></a> @@ -134,8 +134,8 @@ <span class="sourceLineNo">126</span> * @return true if successful<a name="line.126"></a> <span class="sourceLineNo">127</span> */<a name="line.127"></a> <span class="sourceLineNo">128</span> private boolean flushOneForGlobalPressure() {<a name="line.128"></a> -<span class="sourceLineNo">129</span> SortedMap<Long, Region> regionsBySize = server.getCopyOfOnlineRegionsSortedBySize();<a name="line.129"></a> -<span class="sourceLineNo">130</span> Set<Region> excludedRegions = new HashSet<>();<a name="line.130"></a> +<span class="sourceLineNo">129</span> SortedMap<Long, HRegion> regionsBySize = server.getCopyOfOnlineRegionsSortedBySize();<a name="line.129"></a> +<span class="sourceLineNo">130</span> Set<HRegion> excludedRegions = new HashSet<>();<a name="line.130"></a> <span class="sourceLineNo">131</span><a name="line.131"></a> <span class="sourceLineNo">132</span> double secondaryMultiplier<a name="line.132"></a> <span class="sourceLineNo">133</span> = ServerRegionReplicaUtil.getRegionReplicaStoreFileRefreshMultiplier(conf);<a name="line.133"></a> @@ -144,12 +144,12 @@ <span class="sourceLineNo">136</span> while (!flushedOne) {<a name="line.136"></a> <span class="sourceLineNo">137</span> // Find the biggest region that doesn't have too many storefiles<a name="line.137"></a> <span class="sourceLineNo">138</span> // (might be null!)<a name="line.138"></a> -<span class="sourceLineNo">139</span> Region bestFlushableRegion = getBiggestMemStoreRegion(regionsBySize, excludedRegions, true);<a name="line.139"></a> +<span class="sourceLineNo">139</span> HRegion bestFlushableRegion = getBiggestMemStoreRegion(regionsBySize, excludedRegions, true);<a name="line.139"></a> <span class="sourceLineNo">140</span> // Find the biggest region, total, even if it might have too many flushes.<a name="line.140"></a> -<span class="sourceLineNo">141</span> Region bestAnyRegion = getBiggestMemStoreRegion(<a name="line.141"></a> +<span class="sourceLineNo">141</span> HRegion bestAnyRegion = getBiggestMemStoreRegion(<a name="line.141"></a> <span class="sourceLineNo">142</span> regionsBySize, excludedRegions, false);<a name="line.142"></a> <span class="sourceLineNo">143</span> // Find the biggest region that is a secondary region<a name="line.143"></a> -<span class="sourceLineNo">144</span> Region bestRegionReplica = getBiggestMemStoreOfRegionReplica(regionsBySize,<a name="line.144"></a> +<span class="sourceLineNo">144</span> HRegion bestRegionReplica = getBiggestMemStoreOfRegionReplica(regionsBySize,<a name="line.144"></a> <span class="sourceLineNo">145</span> excludedRegions);<a name="line.145"></a> <span class="sourceLineNo">146</span><a name="line.146"></a> <span class="sourceLineNo">147</span> if (bestAnyRegion == null && bestRegionReplica == null) {<a name="line.147"></a> @@ -157,7 +157,7 @@ <span class="sourceLineNo">149</span> return false;<a name="line.149"></a> <span class="sourceLineNo">150</span> }<a name="line.150"></a> <span class="sourceLineNo">151</span><a name="line.151"></a> -<span class="sourceLineNo">152</span> Region regionToFlush;<a name="line.152"></a> +<span class="sourceLineNo">152</span> HRegion regionToFlush;<a name="line.152"></a> <span class="sourceLineNo">153</span> if (bestFlushableRegion != null &&<a name="line.153"></a> <span class="sourceLineNo">154</span> bestAnyRegion.getMemStoreSize() > 2 * bestFlushableRegion.getMemStoreSize()) {<a name="line.154"></a> <span class="sourceLineNo">155</span> // Even if it's not supposed to be flushed, pick a region if it's more than twice<a name="line.155"></a> @@ -291,547 +291,545 @@ <span class="sourceLineNo">283</span> }<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> private Region getBiggestMemStoreRegion(<a name="line.286"></a> -<span class="sourceLineNo">287</span> SortedMap<Long, Region> regionsBySize,<a name="line.287"></a> -<span class="sourceLineNo">288</span> Set<Region> excludedRegions,<a name="line.288"></a> +<span class="sourceLineNo">286</span> private HRegion getBiggestMemStoreRegion(<a name="line.286"></a> +<span class="sourceLineNo">287</span> SortedMap<Long, HRegion> regionsBySize,<a name="line.287"></a> +<span class="sourceLineNo">288</span> Set<HRegion> excludedRegions,<a name="line.288"></a> <span class="sourceLineNo">289</span> boolean checkStoreFileCount) {<a name="line.289"></a> <span class="sourceLineNo">290</span> synchronized (regionsInQueue) {<a name="line.290"></a> -<span class="sourceLineNo">291</span> for (Region region : regionsBySize.values()) {<a name="line.291"></a> +<span class="sourceLineNo">291</span> for (HRegion region : regionsBySize.values()) {<a name="line.291"></a> <span class="sourceLineNo">292</span> if (excludedRegions.contains(region)) {<a name="line.292"></a> <span class="sourceLineNo">293</span> continue;<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> if (((HRegion)region).writestate.flushing ||<a name="line.296"></a> -<span class="sourceLineNo">297</span> !((HRegion)region).writestate.writesEnabled) {<a name="line.297"></a> -<span class="sourceLineNo">298</span> continue;<a name="line.298"></a> -<span class="sourceLineNo">299</span> }<a name="line.299"></a> -<span class="sourceLineNo">300</span><a name="line.300"></a> -<span class="sourceLineNo">301</span> if (checkStoreFileCount && isTooManyStoreFiles(region)) {<a name="line.301"></a> -<span class="sourceLineNo">302</span> continue;<a name="line.302"></a> -<span class="sourceLineNo">303</span> }<a name="line.303"></a> -<span class="sourceLineNo">304</span> return region;<a name="line.304"></a> -<span class="sourceLineNo">305</span> }<a name="line.305"></a> -<span class="sourceLineNo">306</span> }<a name="line.306"></a> -<span class="sourceLineNo">307</span> return null;<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> private Region getBiggestMemStoreOfRegionReplica(SortedMap<Long, Region> regionsBySize,<a name="line.310"></a> -<span class="sourceLineNo">311</span> Set<Region> excludedRegions) {<a name="line.311"></a> -<span class="sourceLineNo">312</span> synchronized (regionsInQueue) {<a name="line.312"></a> -<span class="sourceLineNo">313</span> for (Region region : regionsBySize.values()) {<a name="line.313"></a> -<span class="sourceLineNo">314</span> if (excludedRegions.contains(region)) {<a name="line.314"></a> -<span class="sourceLineNo">315</span> continue;<a name="line.315"></a> -<span class="sourceLineNo">316</span> }<a name="line.316"></a> -<span class="sourceLineNo">317</span><a name="line.317"></a> -<span class="sourceLineNo">318</span> if (RegionReplicaUtil.isDefaultReplica(region.getRegionInfo())) {<a name="line.318"></a> -<span class="sourceLineNo">319</span> continue;<a name="line.319"></a> -<span class="sourceLineNo">320</span> }<a name="line.320"></a> -<span class="sourceLineNo">321</span><a name="line.321"></a> -<span class="sourceLineNo">322</span> return region;<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> return null;<a name="line.325"></a> -<span class="sourceLineNo">326</span> }<a name="line.326"></a> -<span class="sourceLineNo">327</span><a name="line.327"></a> -<span class="sourceLineNo">328</span> private boolean refreshStoreFilesAndReclaimMemory(Region region) {<a name="line.328"></a> -<span class="sourceLineNo">329</span> try {<a name="line.329"></a> -<span class="sourceLineNo">330</span> return region.refreshStoreFiles();<a name="line.330"></a> -<span class="sourceLineNo">331</span> } catch (IOException e) {<a name="line.331"></a> -<span class="sourceLineNo">332</span> LOG.warn("Refreshing store files failed with exception", e);<a name="line.332"></a> -<span class="sourceLineNo">333</span> }<a name="line.333"></a> -<span class="sourceLineNo">334</span> return false;<a name="line.334"></a> -<span class="sourceLineNo">335</span> }<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> * Return true if global memory usage is above the high watermark<a name="line.338"></a> -<span class="sourceLineNo">339</span> */<a name="line.339"></a> -<span class="sourceLineNo">340</span> private FlushType isAboveHighWaterMark() {<a name="line.340"></a> -<span class="sourceLineNo">341</span> return server.getRegionServerAccounting().isAboveHighWaterMark();<a name="line.341"></a> -<span class="sourceLineNo">342</span> }<a name="line.342"></a> -<span class="sourceLineNo">343</span><a name="line.343"></a> -<span class="sourceLineNo">344</span> /**<a name="line.344"></a> -<span class="sourceLineNo">345</span> * Return true if we're above the low watermark<a name="line.345"></a> -<span class="sourceLineNo">346</span> */<a name="line.346"></a> -<span class="sourceLineNo">347</span> private FlushType isAboveLowWaterMark() {<a name="line.347"></a> -<span class="sourceLineNo">348</span> return server.getRegionServerAccounting().isAboveLowWaterMark();<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> @Override<a name="line.351"></a> -<span class="sourceLineNo">352</span> public void requestFlush(Region r, boolean forceFlushAllStores) {<a name="line.352"></a> -<span class="sourceLineNo">353</span> ((HRegion)r).incrementFlushesQueuedCount();<a name="line.353"></a> -<span class="sourceLineNo">354</span> synchronized (regionsInQueue) {<a name="line.354"></a> -<span class="sourceLineNo">355</span> if (!regionsInQueue.containsKey(r)) {<a name="line.355"></a> -<span class="sourceLineNo">356</span> // This entry has no delay so it will be added at the top of the flush<a name="line.356"></a> -<span class="sourceLineNo">357</span> // queue. It'll come out near immediately.<a name="line.357"></a> -<span class="sourceLineNo">358</span> FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.358"></a> -<span class="sourceLineNo">359</span> this.regionsInQueue.put(r, fqe);<a name="line.359"></a> -<span class="sourceLineNo">360</span> this.flushQueue.add(fqe);<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> }<a name="line.363"></a> -<span class="sourceLineNo">364</span><a name="line.364"></a> -<span class="sourceLineNo">365</span> @Override<a name="line.365"></a> -<span class="sourceLineNo">366</span> public void requestDelayedFlush(Region r, long delay, boolean forceFlushAllStores) {<a name="line.366"></a> -<span class="sourceLineNo">367</span> ((HRegion)r).incrementFlushesQueuedCount();<a name="line.367"></a> -<span class="sourceLineNo">368</span> synchronized (regionsInQueue) {<a name="line.368"></a> -<span class="sourceLineNo">369</span> if (!regionsInQueue.containsKey(r)) {<a name="line.369"></a> -<span class="sourceLineNo">370</span> // This entry has some delay<a name="line.370"></a> -<span class="sourceLineNo">371</span> FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.371"></a> -<span class="sourceLineNo">372</span> fqe.requeue(delay);<a name="line.372"></a> -<span class="sourceLineNo">373</span> this.regionsInQueue.put(r, fqe);<a name="line.373"></a> -<span class="sourceLineNo">374</span> this.flushQueue.add(fqe);<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> }<a name="line.377"></a> -<span class="sourceLineNo">378</span><a name="line.378"></a> -<span class="sourceLineNo">379</span> public int getFlushQueueSize() {<a name="line.379"></a> -<span class="sourceLineNo">380</span> return flushQueue.size();<a name="line.380"></a> -<span class="sourceLineNo">381</span> }<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> * Only interrupt once it's done with a run through the work loop.<a name="line.384"></a> -<span class="sourceLineNo">385</span> */<a name="line.385"></a> -<span class="sourceLineNo">386</span> void interruptIfNecessary() {<a name="line.386"></a> -<span class="sourceLineNo">387</span> lock.writeLock().lock();<a name="line.387"></a> -<span class="sourceLineNo">388</span> try {<a name="line.388"></a> -<span class="sourceLineNo">389</span> for (FlushHandler flushHander : flushHandlers) {<a name="line.389"></a> -<span class="sourceLineNo">390</span> if (flushHander != null) flushHander.interrupt();<a name="line.390"></a> -<span class="sourceLineNo">391</span> }<a name="line.391"></a> -<span class="sourceLineNo">392</span> } finally {<a name="line.392"></a> -<span class="sourceLineNo">393</span> lock.writeLock().unlock();<a name="line.393"></a> -<span class="sourceLineNo">394</span> }<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> synchronized void start(UncaughtExceptionHandler eh) {<a name="line.397"></a> -<span class="sourceLineNo">398</span> ThreadFactory flusherThreadFactory = Threads.newDaemonThreadFactory(<a name="line.398"></a> -<span class="sourceLineNo">399</span> server.getServerName().toShortString() + "-MemStoreFlusher", eh);<a name="line.399"></a> -<span class="sourceLineNo">400</span> for (int i = 0; i < flushHandlers.length; i++) {<a name="line.400"></a> -<span class="sourceLineNo">401</span> flushHandlers[i] = new FlushHandler("MemStoreFlusher." + i);<a name="line.401"></a> -<span class="sourceLineNo">402</span> flusherThreadFactory.newThread(flushHandlers[i]);<a name="line.402"></a> -<span class="sourceLineNo">403</span> flushHandlers[i].start();<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><a name="line.406"></a> -<span class="sourceLineNo">407</span> boolean isAlive() {<a name="line.407"></a> -<span class="sourceLineNo">408</span> for (FlushHandler flushHander : flushHandlers) {<a name="line.408"></a> -<span class="sourceLineNo">409</span> if (flushHander != null && flushHander.isAlive()) {<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> }<a name="line.412"></a> -<span class="sourceLineNo">413</span> return false;<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> void join() {<a name="line.416"></a> -<span class="sourceLineNo">417</span> for (FlushHandler flushHander : flushHandlers) {<a name="line.417"></a> -<span class="sourceLineNo">418</span> if (flushHander != null) {<a name="line.418"></a> -<span class="sourceLineNo">419</span> Threads.shutdown(flushHander.getThread());<a name="line.419"></a> -<span class="sourceLineNo">420</span> }<a name="line.420"></a> -<span class="sourceLineNo">421</span> }<a name="line.421"></a> -<span class="sourceLineNo">422</span> }<a name="line.422"></a> -<span class="sourceLineNo">423</span><a name="line.423"></a> -<span class="sourceLineNo">424</span> /**<a name="line.424"></a> -<span class="sourceLineNo">425</span> * A flushRegion that checks store file count. If too many, puts the flush<a name="line.425"></a> -<span class="sourceLineNo">426</span> * on delay queue to retry later.<a name="line.426"></a> -<span class="sourceLineNo">427</span> * @param fqe<a name="line.427"></a> -<span class="sourceLineNo">428</span> * @return true if the region was successfully flushed, false otherwise. If<a name="line.428"></a> -<span class="sourceLineNo">429</span> * false, there will be accompanying log messages explaining why the region was<a name="line.429"></a> -<span class="sourceLineNo">430</span> * not flushed.<a name="line.430"></a> -<span class="sourceLineNo">431</span> */<a name="line.431"></a> -<span class="sourceLineNo">432</span> private boolean flushRegion(final FlushRegionEntry fqe) {<a name="line.432"></a> -<span class="sourceLineNo">433</span> Region region = fqe.region;<a name="line.433"></a> -<span class="sourceLineNo">434</span> if (!region.getRegionInfo().isMetaRegion() &&<a name="line.434"></a> -<span class="sourceLineNo">435</span> isTooManyStoreFiles(region)) {<a name="line.435"></a> -<span class="sourceLineNo">436</span> if (fqe.isMaximumWait(this.blockingWaitTime)) {<a name="line.436"></a> -<span class="sourceLineNo">437</span> LOG.info("Waited " + (EnvironmentEdgeManager.currentTime() - fqe.createTime) +<a name="line.437"></a> -<span class="sourceLineNo">438</span> "ms on a compaction to clean up 'too many store files'; waited " +<a name="line.438"></a> -<span class="sourceLineNo">439</span> "long enough... proceeding with flush of " +<a name="line.439"></a> -<span class="sourceLineNo">440</span> region.getRegionInfo().getRegionNameAsString());<a name="line.440"></a> -<span class="sourceLineNo">441</span> } else {<a name="line.441"></a> -<span class="sourceLineNo">442</span> // If this is first time we've been put off, then emit a log message.<a name="line.442"></a> -<span class="sourceLineNo">443</span> if (fqe.getRequeueCount() <= 0) {<a name="line.443"></a> -<span class="sourceLineNo">444</span> // Note: We don't impose blockingStoreFiles constraint on meta regions<a name="line.444"></a> -<span class="sourceLineNo">445</span> LOG.warn("Region " + region.getRegionInfo().getRegionNameAsString() + " has too many " +<a name="line.445"></a> -<span class="sourceLineNo">446</span> "store files; delaying flush up to " + this.blockingWaitTime + "ms");<a name="line.446"></a> -<span class="sourceLineNo">447</span> if (!this.server.compactSplitThread.requestSplit(region)) {<a name="line.447"></a> -<span class="sourceLineNo">448</span> try {<a name="line.448"></a> -<span class="sourceLineNo">449</span> this.server.compactSplitThread.requestSystemCompaction((HRegion) region,<a name="line.449"></a> -<span class="sourceLineNo">450</span> Thread.currentThread().getName());<a name="line.450"></a> -<span class="sourceLineNo">451</span> } catch (IOException e) {<a name="line.451"></a> -<span class="sourceLineNo">452</span> e = e instanceof RemoteException ?<a name="line.452"></a> -<span class="sourceLineNo">453</span> ((RemoteException)e).unwrapRemoteException() : e;<a name="line.453"></a> -<span class="sourceLineNo">454</span> LOG.error("Cache flush failed for region " +<a name="line.454"></a> -<span class="sourceLineNo">455</span> Bytes.toStringBinary(region.getRegionInfo().getRegionName()), e);<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><a name="line.459"></a> -<span class="sourceLineNo">460</span> // Put back on the queue. Have it come back out of the queue<a name="line.460"></a> -<span class="sourceLineNo">461</span> // after a delay of this.blockingWaitTime / 100 ms.<a name="line.461"></a> -<span class="sourceLineNo">462</span> this.flushQueue.add(fqe.requeue(this.blockingWaitTime / 100));<a name="line.462"></a> -<span class="sourceLineNo">463</span> // Tell a lie, it's not flushed but it's ok<a name="line.463"></a> -<span class="sourceLineNo">464</span> return true;<a name="line.464"></a> -<span class="sourceLineNo">465</span> }<a name="line.465"></a> -<span class="sourceLineNo">466</span> }<a name="line.466"></a> -<span class="sourceLineNo">467</span> return flushRegion(region, false, fqe.isForceFlushAllStores());<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> * Flush a region.<a name="line.471"></a> -<span class="sourceLineNo">472</span> * @param region Region to flush.<a name="line.472"></a> -<span class="sourceLineNo">473</span> * @param emergencyFlush Set if we are being force flushed. If true the region<a name="line.473"></a> -<span class="sourceLineNo">474</span> * needs to be removed from the flush queue. If false, when we were called<a name="line.474"></a> -<span class="sourceLineNo">475</span> * from the main flusher run loop and we got the entry to flush by calling<a name="line.475"></a> -<span class="sourceLineNo">476</span> * poll on the flush queue (which removed it).<a name="line.476"></a> -<span class="sourceLineNo">477</span> * @param forceFlushAllStores whether we want to flush all store.<a name="line.477"></a> -<span class="sourceLineNo">478</span> * @return true if the region was successfully flushed, false otherwise. If<a name="line.478"></a> -<span class="sourceLineNo">479</span> * false, there will be accompanying log messages explaining why the region was<a name="line.479"></a> -<span class="sourceLineNo">480</span> * not flushed.<a name="line.480"></a> -<span class="sourceLineNo">481</span> */<a name="line.481"></a> -<span class="sourceLineNo">482</span> private boolean flushRegion(final Region region, final boolean emergencyFlush,<a name="line.482"></a> -<span class="sourceLineNo">483</span> boolean forceFlushAllStores) {<a name="line.483"></a> -<span class="sourceLineNo">484</span> synchronized (this.regionsInQueue) {<a name="line.484"></a> -<span class="sourceLineNo">485</span> FlushRegionEntry fqe = this.regionsInQueue.remove(region);<a name="line.485"></a> -<span class="sourceLineNo">486</span> // Use the start time of the FlushRegionEntry if available<a name="line.486"></a> -<span class="sourceLineNo">487</span> if (fqe != null && emergencyFlush) {<a name="line.487"></a> -<span class="sourceLineNo">488</span> // Need to remove from region from delay queue. When NOT an<a name="line.488"></a> -<span class="sourceLineNo">489</span> // emergencyFlush, then item was removed via a flushQueue.poll.<a name="line.489"></a> -<span class="sourceLineNo">490</span> flushQueue.remove(fqe);<a name="line.490"></a> -<span class="sourceLineNo">491</span> }<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> lock.readLock().lock();<a name="line.494"></a> -<span class="sourceLineNo">495</span> try {<a name="line.495"></a> -<span class="sourceLineNo">496</span> notifyFlushRequest(region, emergencyFlush);<a name="line.496"></a> -<span class="sourceLineNo">497</span> FlushResult flushResult = region.flush(forceFlushAllStores);<a name="line.497"></a> -<span class="sourceLineNo">498</span> boolean shouldCompact = flushResult.isCompactionNeeded();<a name="line.498"></a> -<span class="sourceLineNo">499</span> // We just want to check the size<a name="line.499"></a> -<span class="sourceLineNo">500</span> boolean shouldSplit = ((HRegion)region).checkSplit() != null;<a name="line.500"></a> -<span class="sourceLineNo">501</span> if (shouldSplit) {<a name="line.501"></a> -<span class="sourceLineNo">502</span> this.server.compactSplitThread.requestSplit(region);<a name="line.502"></a> -<span class="sourceLineNo">503</span> } else if (shouldCompact) {<a name="line.503"></a> -<span class="sourceLineNo">504</span> server.compactSplitThread.requestSystemCompaction((HRegion) region,<a name="line.504"></a> -<span class="sourceLineNo">505</span> Thread.currentThread().getName());<a name="line.505"></a> -<span class="sourceLineNo">506</span> }<a name="line.506"></a> -<span class="sourceLineNo">507</span> } catch (DroppedSnapshotException ex) {<a name="line.507"></a> -<span class="sourceLineNo">508</span> // Cache flush can fail in a few places. If it fails in a critical<a name="line.508"></a> -<span class="sourceLineNo">509</span> // section, we get a DroppedSnapshotException and a replay of wal<a name="line.509"></a> -<span class="sourceLineNo">510</span> // is required. Currently the only way to do this is a restart of<a name="line.510"></a> -<span class="sourceLineNo">511</span> // the server. Abort because hdfs is probably bad (HBASE-644 is a case<a name="line.511"></a> -<span class="sourceLineNo">512</span> // where hdfs was bad but passed the hdfs check).<a name="line.512"></a> -<span class="sourceLineNo">513</span> server.abort("Replay of WAL required. Forcing server shutdown", ex);<a name="line.513"></a> -<span class="sourceLineNo">514</span> return false;<a name="line.514"></a> -<span class="sourceLineNo">515</span> } catch (IOException ex) {<a name="line.515"></a> -<span class="sourceLineNo">516</span> ex = ex instanceof RemoteException ? ((RemoteException) ex).unwrapRemoteException() : ex;<a name="line.516"></a> -<span class="sourceLineNo">517</span> LOG.error(<a name="line.517"></a> -<span class="sourceLineNo">518</span> "Cache flush failed"<a name="line.518"></a> -<span class="sourceLineNo">519</span> + (region != null ? (" for region " +<a name="line.519"></a> -<span class="sourceLineNo">520</span> Bytes.toStringBinary(region.getRegionInfo().getRegionName()))<a name="line.520"></a> -<span class="sourceLineNo">521</span> : ""), ex);<a name="line.521"></a> -<span class="sourceLineNo">522</span> if (!server.checkFileSystem()) {<a name="line.522"></a> -<span class="sourceLineNo">523</span> return false;<a name="line.523"></a> -<span class="sourceLineNo">524</span> }<a name="line.524"></a> -<span class="sourceLineNo">525</span> } finally {<a name="line.525"></a> -<span class="sourceLineNo">526</span> lock.readLock().unlock();<a name="line.526"></a> -<span class="sourceLineNo">527</span> wakeUpIfBlocking();<a name="line.527"></a> -<span class="sourceLineNo">528</span> }<a name="line.528"></a> -<span class="sourceLineNo">529</span> return true;<a name="line.529"></a> -<span class="sourceLineNo">530</span> }<a name="line.530"></a> -<span class="sourceLineNo">531</span><a name="line.531"></a> -<span class="sourceLineNo">532</span> private void notifyFlushRequest(Region region, boolean emergencyFlush) {<a name="line.532"></a> -<span class="sourceLineNo">533</span> FlushType type = null;<a name="line.533"></a> -<span class="sourceLineNo">534</span> if (emergencyFlush) {<a name="line.534"></a> -<span class="sourceLineNo">535</span> type = isAboveHighWaterMark();<a name="line.535"></a> -<span class="sourceLineNo">536</span> if (type == null) {<a name="line.536"></a> -<span class="sourceLineNo">537</span> type = isAboveLowWaterMark();<a name="line.537"></a> -<span class="sourceLineNo">538</span> }<a name="line.538"></a> -<span class="sourceLineNo">539</span> }<a name="line.539"></a> -<span class="sourceLineNo">540</span> for (FlushRequestListener listener : flushRequestListeners) {<a name="line.540"></a> -<span class="sourceLineNo">541</span> listener.flushRequested(type, region);<a name="line.541"></a> -<span class="sourceLineNo">542</span> }<a name="line.542"></a> -<span class="sourceLineNo">543</span> }<a name="line.543"></a> -<span class="sourceLineNo">544</span><a name="line.544"></a> -<span class="sourceLineNo">545</span> private void wakeUpIfBlocking() {<a name="line.545"></a> -<span class="sourceLineNo">546</span> synchronized (blockSignal) {<a name="line.546"></a> -<span class="sourceLineNo">547</span> blockSignal.notifyAll();<a name="line.547"></a> -<span class="sourceLineNo">548</span> }<a name="line.548"></a> -<span class="sourceLineNo">549</span> }<a name="line.549"></a> +<span class="sourceLineNo">296</span> if (region.writestate.flushing || !region.writestate.writesEnabled) {<a name="line.296"></a> +<span class="sourceLineNo">297</span> continue;<a name="line.297"></a> +<span class="sourceLineNo">298</span> }<a name="line.298"></a> +<span class="sourceLineNo">299</span><a name="line.299"></a> +<span class="sourceLineNo">300</span> if (checkStoreFileCount && isTooManyStoreFiles(region)) {<a name="line.300"></a> +<span class="sourceLineNo">301</span> continue;<a name="line.301"></a> +<span class="sourceLineNo">302</span> }<a name="line.302"></a> +<span class="sourceLineNo">303</span> return region;<a name="line.303"></a> +<span class="sourceLineNo">304</span> }<a name="line.304"></a> +<span class="sourceLineNo">305</span> }<a name="line.305"></a> +<span class="sourceLineNo">306</span> return 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> private HRegion getBiggestMemStoreOfRegionReplica(SortedMap<Long, HRegion> regionsBySize,<a name="line.309"></a> +<span class="sourceLineNo">310</span> Set<HRegion> excludedRegions) {<a name="line.310"></a> +<span class="sourceLineNo">311</span> synchronized (regionsInQueue) {<a name="line.311"></a> +<span class="sourceLineNo">312</span> for (HRegion region : regionsBySize.values()) {<a name="line.312"></a> +<span class="sourceLineNo">313</span> if (excludedRegions.contains(region)) {<a name="line.313"></a> +<span class="sourceLineNo">314</span> continue;<a name="line.314"></a> +<span class="sourceLineNo">315</span> }<a name="line.315"></a> +<span class="sourceLineNo">316</span><a name="line.316"></a> +<span class="sourceLineNo">317</span> if (RegionReplicaUtil.isDefaultReplica(region.getRegionInfo())) {<a name="line.317"></a> +<span class="sourceLineNo">318</span> continue;<a name="line.318"></a> +<span class="sourceLineNo">319</span> }<a name="line.319"></a> +<span class="sourceLineNo">320</span><a name="line.320"></a> +<span class="sourceLineNo">321</span> return region;<a name="line.321"></a> +<span class="sourceLineNo">322</span> }<a name="line.322"></a> +<span class="sourceLineNo">323</span> }<a name="line.323"></a> +<span class="sourceLineNo">324</span> return null;<a name="line.324"></a> +<span class="sourceLineNo">325</span> }<a name="line.325"></a> +<span class="sourceLineNo">326</span><a name="line.326"></a> +<span class="sourceLineNo">327</span> private boolean refreshStoreFilesAndReclaimMemory(Region region) {<a name="line.327"></a> +<span class="sourceLineNo">328</span> try {<a name="line.328"></a> +<span class="sourceLineNo">329</span> return region.refreshStoreFiles();<a name="line.329"></a> +<span class="sourceLineNo">330</span> } catch (IOException e) {<a name="line.330"></a> +<span class="sourceLineNo">331</span> LOG.warn("Refreshing store files failed with exception", e);<a name="line.331"></a> +<span class="sourceLineNo">332</span> }<a name="line.332"></a> +<span class="sourceLineNo">333</span> return false;<a name="line.333"></a> +<span class="sourceLineNo">334</span> }<a name="line.334"></a> +<span class="sourceLineNo">335</span><a name="line.335"></a> +<span class="sourceLineNo">336</span> /**<a name="line.336"></a> +<span class="sourceLineNo">337</span> * Return true if global memory usage is above the high watermark<a name="line.337"></a> +<span class="sourceLineNo">338</span> */<a name="line.338"></a> +<span class="sourceLineNo">339</span> private FlushType isAboveHighWaterMark() {<a name="line.339"></a> +<span class="sourceLineNo">340</span> return server.getRegionServerAccounting().isAboveHighWaterMark();<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> /**<a name="line.343"></a> +<span class="sourceLineNo">344</span> * Return true if we're above the low watermark<a name="line.344"></a> +<span class="sourceLineNo">345</span> */<a name="line.345"></a> +<span class="sourceLineNo">346</span> private FlushType isAboveLowWaterMark() {<a name="line.346"></a> +<span class="sourceLineNo">347</span> return server.getRegionServerAccounting().isAboveLowWaterMark();<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> @Override<a name="line.350"></a> +<span class="sourceLineNo">351</span> public void requestFlush(HRegion r, boolean forceFlushAllStores) {<a name="line.351"></a> +<span class="sourceLineNo">352</span> r.incrementFlushesQueuedCount();<a name="line.352"></a> +<span class="sourceLineNo">353</span> synchronized (regionsInQueue) {<a name="line.353"></a> +<span class="sourceLineNo">354</span> if (!regionsInQueue.containsKey(r)) {<a name="line.354"></a> +<span class="sourceLineNo">355</span> // This entry has no delay so it will be added at the top of the flush<a name="line.355"></a> +<span class="sourceLineNo">356</span> // queue. It'll come out near immediately.<a name="line.356"></a> +<span class="sourceLineNo">357</span> FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.357"></a> +<span class="sourceLineNo">358</span> this.regionsInQueue.put(r, fqe);<a name="line.358"></a> +<span class="sourceLineNo">359</span> this.flushQueue.add(fqe);<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><a name="line.363"></a> +<span class="sourceLineNo">364</span> @Override<a name="line.364"></a> +<span class="sourceLineNo">365</span> public void requestDelayedFlush(HRegion r, long delay, boolean forceFlushAllStores) {<a name="line.365"></a> +<span class="sourceLineNo">366</span> r.incrementFlushesQueuedCount();<a name="line.366"></a> +<span class="sourceLineNo">367</span> synchronized (regionsInQueue) {<a name="line.367"></a> +<span class="sourceLineNo">368</span> if (!regionsInQueue.containsKey(r)) {<a name="line.368"></a> +<span class="sourceLineNo">369</span> // This entry has some delay<a name="line.369"></a> +<span class="sourceLineNo">370</span> FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.370"></a> +<span class="sourceLineNo">371</span> fqe.requeue(delay);<a name="line.371"></a> +<span class="sourceLineNo">372</span> this.regionsInQueue.put(r, fqe);<a name="line.372"></a> +<span class="sourceLineNo">373</span> this.flushQueue.add(fqe);<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> }<a name="line.376"></a> +<span class="sourceLineNo">377</span><a name="line.377"></a> +<span class="sourceLineNo">378</span> public int getFlushQueueSize() {<a name="line.378"></a> +<span class="sourceLineNo">379</span> return flushQueue.size();<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> /**<a name="line.382"></a> +<span class="sourceLineNo">383</span> * Only interrupt once it's done with a run through the work loop.<a name="line.383"></a> +<span class="sourceLineNo">384</span> */<a name="line.384"></a> +<span class="sourceLineNo">385</span> void interruptIfNecessary() {<a name="line.385"></a> +<span class="sourceLineNo">386</span> lock.writeLock().lock();<a name="line.386"></a> +<span class="sourceLineNo">387</span> try {<a name="line.387"></a> +<span class="sourceLineNo">388</span> for (FlushHandler flushHander : flushHandlers) {<a name="line.388"></a> +<span class="sourceLineNo">389</span> if (flushHander != null) flushHander.interrupt();<a name="line.389"></a> +<span class="sourceLineNo">390</span> }<a name="line.390"></a> +<span class="sourceLineNo">391</span> } finally {<a name="line.391"></a> +<span class="sourceLineNo">392</span> lock.writeLock().unlock();<a name="line.392"></a> +<span class="sourceLineNo">393</span> }<a name="line.393"></a> +<span class="sourceLineNo">394</span> }<a name="line.394"></a> +<span class="sourceLineNo">395</span><a name="line.395"></a> +<span class="sourceLineNo">396</span> synchronized void start(UncaughtExceptionHandler eh) {<a name="line.396"></a> +<span class="sourceLineNo">397</span> ThreadFactory flusherThreadFactory = Threads.newDaemonThreadFactory(<a name="line.397"></a> +<span class="sourceLineNo">398</span> server.getServerName().toShortString() + "-MemStoreFlusher", eh);<a name="line.398"></a> +<span class="sourceLineNo">399</span> for (int i = 0; i < flushHandlers.length; i++) {<a name="line.399"></a> +<span class="sourceLineNo">400</span> flushHandlers[i] = new FlushHandler("MemStoreFlusher." + i);<a name="line.400"></a> +<span class="sourceLineNo">401</span> flusherThreadFactory.newThread(flushHandlers[i]);<a name="line.401"></a> +<span class="sourceLineNo">402</span> flushHandlers[i].start();<a name="line.402"></a> +<span class="sourceLineNo">403</span> }<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> boolean isAlive() {<a name="line.406"></a> +<span class="sourceLineNo">407</span> for (FlushHandler flushHander : flushHandlers) {<a name="line.407"></a> +<span class="sourceLineNo">408</span> if (flushHander != null && flushHander.isAlive()) {<a name="line.408"></a> +<span class="sourceLineNo">409</span> return true;<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> 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> void join() {<a name="line.415"></a> +<span class="sourceLineNo">416</span> for (FlushHandler flushHander : flushHandlers) {<a name="line.416"></a> +<span class="sourceLineNo">417</span> if (flushHander != null) {<a name="line.417"></a> +<span class="sourceLineNo">418</span> Threads.shutdown(flushHander.getThread());<a name="line.418"></a> +<span class="sourceLineNo">419</span> }<a name="line.419"></a> +<span class="sourceLineNo">420</span> }<a name="line.420"></a> +<span class="sourceLineNo">421</span> }<a name="line.421"></a> +<span class="sourceLineNo">422</span><a name="line.422"></a> +<span class="sourceLineNo">423</span> /**<a name="line.423"></a> +<span class="sourceLineNo">424</span> * A flushRegion that checks store file count. If too many, puts the flush<a name="line.424"></a> +<span class="sourceLineNo">425</span> * on delay queue to retry later.<a name="line.425"></a> +<span class="sourceLineNo">426</span> * @param fqe<a name="line.426"></a> +<span class="sourceLineNo">427</span> * @return true if the region was successfully flushed, false otherwise. If<a name="line.427"></a> +<span class="sourceLineNo">428</span> * false, there will be accompanying log messages explaining why the region was<a name="line.428"></a> +<span class="sourceLineNo">429</span> * not flushed.<a name="line.429"></a> +<span class="sourceLineNo">430</span> */<a name="line.430"></a> +<span class="sourceLineNo">431</span> private boolean flushRegion(final FlushRegionEntry fqe) {<a name="line.431"></a> +<span class="sourceLineNo">432</span> HRegion region = fqe.region;<a name="line.432"></a> +<span class="sourceLineNo">433</span> if (!region.getRegionInfo().isMetaRegion() &&<a name="line.433"></a> +<span class="sourceLineNo">434</span> isTooManyStoreFiles(region)) {<a name="line.434"></a> +<span class="sourceLineNo">435</span> if (fqe.isMaximumWait(this.blockingWaitTime)) {<a name="line.435"></a> +<span class="sourceLineNo">436</span> LOG.info("Waited " + (EnvironmentEdgeManager.currentTime() - fqe.createTime) +<a name="line.436"></a> +<span class="sourceLineNo">437</span> "ms on a compaction to clean up 'too many store files'; waited " +<a name="line.437"></a> +<span class="sourceLineNo">438</span> "long enough... proceeding with flush of " +<a name="line.438"></a> +<span class="sourceLineNo">439</span> region.getRegionInfo().getRegionNameAsString());<a name="line.439"></a> +<span class="sourceLineNo">440</span> } else {<a name="line.440"></a> +<span class="sourceLineNo">441</span> // If this is first time we've been put off, then emit a log message.<a name="line.441"></a> +<span class="sourceLineNo">442</span> if (fqe.getRequeueCount() <= 0) {<a name="line.442"></a> +<span class="sourceLineNo">443</span> // Note: We don't impose blockingStoreFiles constraint on meta regions<a name="line.443"></a> +<span class="sourceLineNo">444</span> LOG.warn("Region " + region.getRegionInfo().getRegionNameAsString() + " has too many " +<a name="line.444"></a> +<span class="sourceLineNo">445</span> "store files; delaying flush up to " + this.blockingWaitTime + "ms");<a name="line.445"></a> +<span class="sourceLineNo">446</span> if (!this.server.compactSplitThread.requestSplit(region)) {<a name="line.446"></a> +<span class="sourceLineNo">447</span> try {<a name="line.447"></a> +<span class="sourceLineNo">448</span> this.server.compactSplitThread.requestSystemCompaction((HRegion) region,<a name="line.448"></a> +<span class="sourceLineNo">449</span> Thread.currentThread().getName());<a name="line.449"></a> +<span class="sourceLineNo">450</span> } catch (IOException e) {<a name="line.450"></a> +<span class="sourceLineNo">451</span> e = e instanceof RemoteException ?<a name="line.451"></a> +<span class="sourceLineNo">452</span> ((RemoteException)e).unwrapRemoteException() : e;<a name="line.452"></a> +<span class="sourceLineNo">453</span> LOG.error("Cache flush failed for region " +<a name="line.453"></a> +<span class="sourceLineNo">454</span> Bytes.toStringBinary(region.getRegionInfo().getRegionName()), e);<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> // Put back on the queue. Have it come back out of the queue<a name="line.459"></a> +<span class="sourceLineNo">460</span> // after a delay of this.blockingWaitTime / 100 ms.<a name="line.460"></a> +<span class="sourceLineNo">461</span> this.flushQueue.add(fqe.requeue(this.blockingWaitTime / 100));<a name="line.461"></a> +<span class="sourceLineNo">462</span> // Tell a lie, it's not flushed but it's ok<a name="line.462"></a> +<span class="sourceLineNo">463</span> return true;<a name="line.463"></a> +<span class="sourceLineNo">464</span> }<a name="line.464"></a> +<span class="sourceLineNo">465</span> }<a name="line.465"></a> +<span class="sourceLineNo">466</span> return flushRegion(region, false, fqe.isForceFlushAllStores());<a name="line.466"></a> +<span class="sourceLineNo">467</span> }<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> * Flush a region.<a name="line.470"></a> +<span class="sourceLineNo">471</span> * @param region Region to flush.<a name="line.471"></a> +<span class="sourceLineNo">472</span> * @param emergencyFlush Set if we are being force flushed. If true the region<a name="line.472"></a> +<span class="sourceLineNo">473</span> * needs to be removed from the flush queue. If false, when we were called<a name="line.473"></a> +<span class="sourceLineNo">474</span> * from the main flusher run loop and we got the entry to flush by calling<a name="line.474"></a> +<span class="sourceLineNo">475</span> * poll on the flush queue (which removed it).<a name="line.475"></a> +<span class="sourceLineNo">476</span> * @param forceFlushAllStores whether we want to flush all store.<a name="line.476"></a> +<span class="sourceLineNo">477</span> * @return true if the region was successfully flushed, false otherwise. If<a name="line.477"></a> +<span class="sourceLineNo">478</span> * false, there will be accompanying log messages explaining why the region was<a name="line.478"></a> +<span class="sourceLineNo">479</span> * not flushed.<a name="line.479"></a> +<span class="sourceLineNo">480</span> */<a name="line.480"></a> +<span class="sourceLineNo">481</span> private boolean flushRegion(final HRegion region, final boolean emergencyFlush,<a name="line.481"></a> +<span class="sourceLineNo">482</span> boolean forceFlushAllStores) {<a name="line.482"></a> +<span class="sourceLineNo">483</span> synchronized (this.regionsInQueue) {<a name="line.483"></a> +<span class="sourceLineNo">484</span> FlushRegionEntry fqe = this.regionsInQueue.remove(region);<a name="line.484"></a> +<span class="sourceLineNo">485</span> // Use the start time of the FlushRegionEntry if available<a name="line.485"></a> +<span class="sourceLineNo">486</span> if (fqe != null && emergencyFlush) {<a name="line.486"></a> +<span class="sourceLineNo">487</span> // Need to remove from region from delay queue. When NOT an<a name="line.487"></a> +<span class="sourceLineNo">488</span> // emergencyFlush, then item was removed via a flushQueue.poll.<a name="line.488"></a> +<span class="sourceLineNo">489</span> flushQueue.remove(fqe);<a name="line.489"></a> +<span class="sourceLineNo">490</span> }<a name="line.490"></a> +<span class="sourceLineNo">491</span> }<a name="line.491"></a> +<span class="sourceLineNo">492</span><a name="line.492"></a> +<span class="sourceLineNo">493</span> lock.readLock().lock();<a name="line.493"></a> +<span class="sourceLineNo">494</span> try {<a name="line.494"></a> +<span class="sourceLineNo">495</span> notifyFlushRequest(region, emergencyFlush);<a name="line.495"></a> +<span class="sourceLineNo">496</span> FlushResult flushResult = region.flush(forceFlushAllStores);<a name="line.496"></a> +<span class="sourceLineNo">497</span> boolean shouldCompact = flushResult.isCompactionNeeded();<a name="line.497"></a> +<span class="sourceLineNo">498</span> // We just want to check the size<a name="line.498"></a> +<span class="sourceLineNo">499</span> boolean shouldSplit = region.checkSplit() != null;<a name="line.499"></a> +<span class="sourceLineNo">500</span> if (shouldSplit) {<a name="line.500"></a> +<span class="sourceLineNo">501</span> this.server.compactSplitThread.requestSplit(region);<a name="line.501"></a> +<span class="sourceLineNo">502</span> } else if (shouldCompact) {<a name="line.502"></a> +<span class="sourceLineNo">503</span> server.compactSplitThread.requestSystemCompaction(region, Thread.currentThread().getName());<a name="line.503"></a> +<span class="sourceLineNo">504</span> }<a name="line.504"></a> +<span class="sourceLineNo">505</span> } catch (DroppedSnapshotException ex) {<a name="line.505"></a> +<span class="sourceLineNo">506</span> // Cache flush can fail in a few places. If it fails in a critical<a name="line.506"></a> +<span class="sourceLineNo">507</span> // section, we get a DroppedSnapshotException and a replay of wal<a name="line.507"></a> +<span class="sourceLineNo">508</span> // is required. Currently the only way to do this is a restart of<a name="line.508"></a> +<span class="sourceLineNo">509</span> // the server. Abort because hdfs is probably bad (HBASE-644 is a case<a name="line.509"></a> +<span class="sourceLineNo">510</span> // where hdfs was bad but passed the hdfs check).<a name="line.510"></a> +<span class="sourceLineNo">511</span> server.abort("Replay of WAL required. Forcing server shutdown", ex);<a name="line.511"></a> +<span class="sourceLineNo">512</span> return false;<a name="line.512"></a> +<span class="sourceLineNo">513</span> } catch (IOException ex) {<a name="line.513"></a> +<span class="sourceLineNo">514</span> ex = ex instanceof RemoteException ? ((RemoteException) ex).unwrapRemoteException() : ex;<a name="line.514"></a> +<span class="sourceLineNo">515</span> LOG.error(<a name="line.515"></a> +<span class="sourceLineNo">516</span> "Cache flush failed"<a name="line.516"></a> +<span class="sourceLineNo">517</span> + (region != null ? (" for region " +<a name="line.517"></a> +<span class="sourceLineNo">518</span> Bytes.toStringBinary(region.getRegionInfo().getRegionName()))<a name="line.518"></a> +<span class="sourceLineNo">519</span> : ""), ex);<a name="line.519"></a> +<span class="sourceLineNo">520</span> if (!server.checkFileSystem()) {<a name="line.520"></a> +<span class="sourceLineNo">521</span> return false;<a name="line.521"></a> +<span class="sourceLineNo">522</span> }<a name="line.522"></a> +<span class="sourceLineNo">523</span> } finally {<a name="line.523"></a> +<span class="sourceLineNo">524</span> lock.readLock().unlock();<a name="line.524"></a> +<span class="sourceLineNo">525</span> wakeUpIfBlocking();<a name="line.525"></a> +<span class="sourceLineNo">526</span> }<a name="line.526"></a> +<span class="sourceLineNo">527</span> return true;<a name="line.527"></a> +<span class="sourceLineNo">528</span> }<a name="line.528"></a> +<span class="sourceLineNo">529</span><a name="line.529"></a> +<span class="sourceLineNo">530</span> private void notifyFlushRequest(Region region, boolean emergencyFlush) {<a name="line.530"></a> +<span class="sourceLineNo">531</span> FlushType type = null;<a name="line.531"></a> +<span class="sourceLineNo">532</span> if (emergencyFlush) {<a name="line.532"></a> +<span class="sourceLineNo">533</span> type = isAboveHighWaterMark();<a name="line.533"></a> +<span class="sourceLineNo">534</span> if (type == null) {<a name="line.534"></a> +<span class="sourceLineNo">535</span> type = isAboveLowWaterMark();<a name="line.535"></a> +<span class="sourceLineNo">536</span> }<a name="line.536"></a> +<span class="sourceLineNo">537</span> }<a name="line.537"></a> +<span class="sourceLineNo">538</span> for (FlushRequestListener listener : flushRequestListeners) {<a name="line.538"></a> +<span class="sourceLineNo">539</span> listener.flushRequested(type, region);<a name="line.539"></a> +<span class="sourceLineNo">540</span> }<a name="line.540"></a> +<span class="sourceLineNo">541</span> }<a name="line.541"></a> +<span class="sourceLineNo">542</span><a name="line.542"></a> +<span class="sourceLineNo">543</span> private void wakeUpIfBlocking() {<a name="line.543"></a> +<span class="sourceLineNo">544</span> synchronized (blockSignal) {<a name="line.544"></a> +<span class="sourceLineNo">545</span> blockSignal.notifyAll();<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> private boolean isTooManyStoreFiles(Region region) {<a name="line.549"></a> <span class="sourceLineNo">550</span><a name="line.550"></a> -<span class="sourceLineNo">551</span> private boolean isTooManyStoreFiles(Region region) {<a name="line.551"></a> -<span class="sourceLineNo">552</span><a name="line.552"></a> -<span class="sourceLineNo">553</span> // When compaction is disabled, the region is flushable<a name="line.553"></a> -<span class="sourceLineNo">554</span> if (!region.getTableDescriptor().isCompactionEnabled()) {<a name="line.554"></a> -<span class="sourceLineNo">555</span> return false;<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> for (Store store : region.getStores()) {<a name="line.558"></a> -<span class="sourceLineNo">559</span> if (store.hasTooManyStoreFiles()) {<a name="line.559"></a> -<span class="sourceLineNo">560</span> return true;<a name="line.560"></a> -<span class="sourceLineNo">561</span> }<a name="line.561"></a> -<span class="sourceLineNo">562</span> }<a name="line.562"></a> -<span class="sourceLineNo">563</span> return false;<a name="line.563"></a> -<span class="sourceLineNo">564</span> }<a name="line.564"></a> -<span class="sourceLineNo">565</span><a name="line.565"></a> -<span class="sourceLineNo">566</span> /**<a name="line.566"></a> -<span class="sourceLineNo">567</span> * Check if the regionserver's memstore memory usage is greater than the<a name="line.567"></a> -<span class="sourceLineNo">568</span> * limit. If so, flush regions with the biggest memstores until we're down<a name="line.568"></a> -<span class="sourceLineNo">569</span> * to the lower limit. This method blocks callers until we're down to a safe<a name="line.569"></a> -<span class="sourceLineNo">570</span> * amount of memstore consumption.<a name="line.570"></a> -<span class="sourceLineNo">571</span> */<a name="line.571"></a> -<span class="sourceLineNo">572</span> public void reclaimMemStoreMemory() {<a name="line.572"></a> -<span class="sourceLineNo">573</span> TraceScope scope = Trace.startSpan("MemStoreFluser.reclaimMemStoreMemory");<a name="line.573"></a> -<span class="sourceLineNo">574</span> FlushType flushType = isAboveHighWaterMark();<a name="line.574"></a> -<span class="sourceLineNo">575</span> if (flushType != FlushType.NORMAL) {<a name="line.575"></a> -<span class="sourceLineNo">576</span> if (Trace.isTracing()) {<a name="line.576"></a> -<span class="sourceLineNo">577</span> scope.getSpan().addTimelineAnnotation("Force Flush. We're above high water mark.");<a name="line.577"></a> -<span class="sourceLineNo">578</span> }<a name="line.578"></a> -<span class="sourceLineNo">579</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.579"></a> -<span class="sourceLineNo">580</span> synchronized (this.blockSignal) {<a name="line.580"></a> -<span class="sourceLineNo">581</span> boolean blocked = false;<a name="line.581"></a> -<span class="sourceLineNo">582</span> long startTime = 0;<a name="line.582"></a> -<span class="sourceLineNo">583</span> boolean interrupted = false;<a name="line.583"></a> -<span class="sourceLineNo">584</span> try {<a name="line.584"></a> -<span class="sourceLineNo">585</span> flushType = isAboveHighWaterMark();<a name="line.585"></a> -<span class="sourceLineNo">586</span> while (flushType != FlushType.NORMAL && !server.isStopped()) {<a name="line.586"></a> -<span class="sourceLineNo">587</span> if (!blocked) {<a name="line.587"></a> -<span class="sourceLineNo">588</span> startTime = EnvironmentEdgeManager.currentTime();<a name="line.588"></a> -<span class="sourceLineNo">589</span> if (!server.getRegionServerAccounting().isOffheap()) {<a name="line.589"></a> -<span class="sourceLineNo">590</span> logMsg("global memstore heapsize",<a name="line.590"></a> -<span class="sourceLineNo">591</span> server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a name="line.591"></a> -<span class="sourceLineNo">592</span> server.getRegionServerAccounting().getGlobalMemStoreLimit());<a name="line.592"></a> -<span class="sourceLineNo">593</span> } else {<a name="line.593"></a> -<span class="sourceLineNo">594</span> switch (flushType) {<a name="line.594"></a> -<span class="sourceLineNo">595</span> case ABOVE_OFFHEAP_HIGHER_MARK:<a name="line.595"></a> -<span class="sourceLineNo">596</span> logMsg("the global offheap memstore datasize",<a name="line.596"></a> -<span class="sourceLineNo">597</span> server.getRegionServerAccounting().getGlobalMemStoreDataSize(),<a name="line.597"></a> -<span class="sourceLineNo">598</span> server.getRegionServerAccounting().getGlobalMemStoreLimit());<a name="line.598"></a> -<span class="sourceLineNo">599</span> break;<a name="line.599"></a> -<span class="sourceLineNo">600</span> case ABOVE_ONHEAP_HIGHER_MARK:<a name="line.600"></a> -<span class="sourceLineNo">601</span> logMsg("global memstore heapsize",<a name="line.601"></a> -<span class="sourceLineNo">602</span> server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a name="line.602"></a> -<span class="sourceLineNo">603</span> server.getRegionServerAccounting().getGlobalOnHeapMemStoreLimit());<a name="line.603"></a> +<span class="sourceLineNo">551</span> // When compaction is disabled, the region is flushable<a name="line.551"></a> +<span class="sourceLineNo">552</span> if (!region.getTableDescriptor().isCompactionEnabled()) {<a name="line.552"></a> +<span class="sourceLineNo">553</span> return false;<a name="line.553"></a> +<span class="sourceLineNo">554</span> }<a name="line.554"></a> +<span class="sourceLineNo">555</span><a name="line.555"></a> +<span class="sourceLineNo">556</span> for (Store store : region.getStores()) {<a name="line.556"></a> +<span class="sourceLineNo">557</span> if (store.hasTooManyStoreFiles()) {<a name="line.557"></a> +<span class="sourceLineNo">558</span> return true;<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> return false;<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">564</span> /**<a name="line.564"></a> +<span class="sourceLineNo">565</span> * Check if the regionserver's memstore memory usage is greater than the<a name="line.565"></a> +<span class="sourceLineNo">566</span> * limit. If so, flush regions with the biggest memstores until we're down<a name="line.566"></a> +<span class="sourceLineNo">567</span> * to the lower limit. This method blocks callers until we're down to a safe<a name="line.567"></a> +<span class="sourceLineNo">568</span> * amount of memstore consumption.<a name="line.568"></a> +<span class="sourceLineNo">569</span> */<a name="line.569"></a> +<span class="sourceLineNo">570</span> public void reclaimMemStoreMemory() {<a name="line.570"></a> +<span class="sourceLineNo">571</span> TraceScope scope = Trace.startSpan("MemStoreFluser.reclaimMemStoreMemory");<a name="line.571"></a> +<span class="sourceLineNo">572</span> FlushType flushType = isAboveHighWaterMark();<a name="line.572"></a> +<span class="sourceLineNo">573</span> if (flushType != FlushType.NORMAL) {<a name="line.573"></a> +<span class="sourceLineNo">574</span> if (Trace.isTracing()) {<a name="line.574"></a> +<span class="sourceLineNo">575</span> scope.getSpan().addTimelineAnnotation("Force Flush. We're above high water mark.");<a name="line.575"></a> +<span class="sourceLineNo">576</span> }<a name="line.576"></a> +<span class="sourceLineNo">577</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.577"></a> +<span class="sourceLineNo">578</span> synchronized (this.blockSignal) {<a name="line.578"></a> +<span class="sourceLineNo">579</span> boolean blocked = false;<a name="line.579"></a> +<span class="sourceLineNo">580</span> long startTime = 0;<a name="line.580"></a> +<span class="sourceLineNo">581</span> boolean interrupted = false;<a name="line.581"></a> +<span class="sourceLineNo">582</span> try {<a name="line.582"></a> +<span class="sourceLineNo">583</span> flushType = isAboveHighWaterMark();<a name="line.583"></a> +<span class="sourceLineNo">584</span> while (flushType != FlushType.NORMAL && !server.isStopped()) {<a name="line.584"></a> +<span class="sourceLineNo">585</span> if (!blocked) {<a name="line.585"></a> +<span class="sourceLineNo">586</span> startTime = EnvironmentEdgeManager.currentTime();<a name="line.586"></a> +<span class="sourceLineNo">587</span> if (!server.getRegionServerAccounting().isOffheap()) {<a name="line.587"></a> +<span class="sourceLineNo">588</span> logMsg("global memstore heapsize",<a name="line.588"></a> +<span class="sourceLineNo">589</span> server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a name="line.589"></a> +<span class="sourceLineNo">590</span> server.getRegionServerAccounting().getGlobalMemStoreLimit());<a name="line.590"></a> +<span class="sourceLineNo">591</span> } else {<a name="line.591"></a> +<span class="sourceLineNo">592</span> switch (flushType) {<a name="line.592"></a> +<span class="sourceLineNo">593</span> case ABOVE_OFFHEAP_HIGHER_MARK:<a name="line.593"></a> +<span class="sourceLineNo">594</span> logMsg("the global offheap memstore datasize",<a name="line.594"></a> +<span class="sourceLineNo">595</span> server.getRegionServerAccounting().getGlobalMemStoreDataSize(),<a name="line.595"></a> +<span class="sourceLineNo">596</span> server.getRegionServerAccounting().getGlobalMemStoreLimit());<a name="line.596"></a> +<span class="sourceLineNo">597</span> break;<a name="line.597"></a> +<span class="sourceLineNo">598</span> case ABOVE_ONHEAP_HIGHER_MARK:<a name="line.598"></a> +<span class="sourceLineNo">599</span> logMsg("global memstore heapsize",<a name="line.599"></a> +<span class="sourceLineNo">600</span> server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a name="line.600"></a> +<span class="sourceLineNo">601</span> server.getRegionServerAccounting().getGlobalOnHeapMemStoreLimit());<a name="line.601"></a> +<span class="sourceLineNo">602</span> break;<a name="line.602"></a> +<span class="sourceLineNo">603</span> default:<a name="line.603"></a> <span class="sourceLineNo">604</span> break;<a name="line.604"></a> -<span class="sourceLineNo">605</span> default:<a name="line.605"></a> -<span class="sourceLineNo">606</span> break;<a name="line.606"></a> -<span class="sourceLineNo">607</span> }<a name="line.607"></a> -<span class="sourceLineNo">608</span> }<a name="line.608"></a> -<span class="sourceLineNo">609</span> }<a name="line.609"></a> -<span class="sourceLineNo">610</span> blocked = true;<a name="line.610"></a> -<span class="sourceLineNo">611</span> wakeupFlushThread();<a name="line.611"></a> -<span class="sourceLineNo">612</span> try {<a name="line.612"></a> -<span class="sourceLineNo">613</span> // we should be able to wait forever, but we've seen a bug where<a name="line.613"></a> -<span class="sourceLineNo">614</span> // we miss a notify, so put a 5 second bound on it at least.<a name="line.614"></a> -<span class="sourceLineNo">615</span> blockSignal.wait(5 * 1000);<a name="line.615"></a> -<span class="sourceLineNo">616</span> } catch (InterruptedException ie) {<a name="line.616"></a> -<span class="sourceLineNo">617</span> LOG.warn("Interrupted while waiting");<a name="line.617"></a> -<span class="sourceLineNo">618</span> interrupted = true;<a name="line.618"></a> -<span class="sourceLineNo">619</span> }<a name="line.619"></a> -<span class="sourceLineNo">620</span> long took = EnvironmentEdgeManager.currentTime() - start;<a name="line.620"></a> -<span class="sourceLineNo">621</span> LOG.warn("Memstore is above high water mark and block " + took + "ms");<a name="line.621"></a> -<span class="sourceLineNo">622</span> flushType = isAboveHighWaterMark();<a name="line.622"></a> -<span class="sourceLineNo">623</span> }<a name="line.623"></a> -<span class="sourceLineNo">624</span> } finally {<a name="line.624"></a> -<span class="sourceLineNo">625</span> if (interrupted) {<a name="line.625"></a> -<span class="sourceLineNo">626</span> Thread.currentThread().interrupt();<a name="line.626"></a> -<span class="sourceLineNo">627</span> }<a name="line.627"></a> -<span class="sourceLineNo">628</span> }<a name="line.628"></a> -<span class="sourceLineNo">629</span><a name="line.629"></a> -<span class="sourceLineNo">630</span> if(blocked){<a name="line.630"></a> -<span class="sourceLineNo">631</span> final long totalTime = EnvironmentEdgeManager.currentTime() - startTime;<a name="line.631"></a> -<span class="sourceLineNo">632</span> if(totalTime > 0){<a name="line.632"></a> -<span class="sourceLineNo">633</span> this.updatesBlockedMsHighWater.add(totalTime);<a name="line.633"></a> -<span class="sourceLineNo">634</span> }<a name="line.634"></a> -<span class="sourceLineNo">635</span> LOG.info("Unblocking updates for server " + server.toString());<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> } else if (isAboveLowWaterMark() != FlushType.NORMAL) {<a name="line.638"></a> -<span class="sourceLineNo">639</span> wakeupFlushThread();<a name="line.639"></a> -<span class="sourceLineNo">640</span> }<a name="line.640"></a> -<span class="sourceLineNo">641</span> scope.close();<a name="line.641"></a> -<span class="sourceLineNo">642</span> }<a name="line.642"></a> -<span class="sourceLineNo">643</span><a name="line.643"></a> -<span class="sourceLineNo">644</span> private void logMsg(String string1, long val, long max) {<a name="line.644"></a> -<span class="sourceLineNo">645</span> LOG.info("Blocking updates on " + server.toString() + ": " + string1 + " "<a name="line.645"></a> -<span class="sourceLineNo">646</span> + TraditionalBinaryPrefix.long2String(val, "", 1) + " is >= than blocking "<a name="line.646"></a> -<span class="sourceLineNo">647</span> + TraditionalBinaryPrefix.long2String(max, "", 1) + " size");<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> @Override<a name="line.650"></a> -<span class="sourceLineNo">651</span> public String toString() {<a name="line.651"></a> -<span class="sourceLineNo">652</span> return "flush_queue="<a name="line.652"></a> -<span class="sourceLineNo">653</span> + flushQueue.size();<a name="line.653"></a> -<span class="sourceLineNo">654</span> }<a name="line.654"></a> -<span class="sourceLineNo">655</span><a name="line.655"></a> -<span class="sourceLineNo">656</span> public String dumpQueue() {<a name="line.656"></a> -<span class="sourceLineNo">657</span> StringBuilder queueList = new StringBuilder();<a name="line.657"></a> -<span class="sourceLineNo">658</span> queueList.append("Flush Queue Queue dump:\n");<a name="line.658"></a> -<span class="sourceLineNo">659</span> queueList.append(" Flush Queue:\n");<a name="line.659"></a> -<span class="sourceLineNo">660</span> java.util.Iterator<FlushQueueEntry> it = flushQueue.iterator();<a name="line.660"></a> -<span class="sourceLineNo">661</span><a name="line.661"></a> -<span class="sourceLineNo">662</span> while(it.hasNext()){<a name="line.662"></a> -<span class="sourceLineNo">663</span> queueList.append(" "+it.next().toString());<a name="line.663"></a> -<span class="sourceLineNo">664</span> queueList.append("\n");<a name="line.664"></a> -<span class="sourceLineNo">665</span> }<a name="line.665"></a> -<span class="sourceLineNo">666</span><a name="line.666"></a> -<span class="sourceLineNo">667</span> return queueList.toString();<a name="line.667"></a> -<span class="sourceLineNo">668</span> }<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> * Register a MemstoreFlushListener<a name="line.671"></a> -<span class="sourceLineNo">672</span> * @param listener<a name="line.672"></a> -<span class="sourceLineNo">673</span> */<a name="line.673"></a> -<span class="sourceLineNo">674</span> @Override<a name="line.674"></a> -<span class="sourceLineNo">675</span> public void registerFlushRequestListener(final FlushRequestListener listener) {<a name="line.675"></a> -<span class="sourceLineNo">676</span> this.flushRequestListeners.add(listener);<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> /**<a name="line.679"></a> -<span class="sourceLineNo">680</span> * Unregister the listener from MemstoreFlushListeners<a name="line.680"></a> -<span class="sourceLineNo">681</span> * @param listener<a name="line.681"></a> -<span class="sourceLineNo">682</span> * @return true when passed listener is unregistered successfully.<a name="line.682"></a> -<span class="sourceLineNo">683</span> */<a name="line.683"></a> -<span class="sourceLineNo">684</span> @Override<a name="line.684"></a> -<span class="sourceLineNo">685</span> public boolean unregisterFlushRequestListener(final FlushRequestListener listener) {<a name="line.685"></a> -<span class="sourceLineNo">686</span> return this.flushRequestListeners.remove(listener);<a name="line.686"></a> -<span class="sourceLineNo">687</span> }<a name="line.687"></a> -<span class="sourceLineNo">688</span><a name="line.688"></a> -<span class="sourceLineNo">689</span> /**<a name="line.689"></a> -<span class="sourceLineNo">690</span> * Sets the global memstore limit to a new size.<a name="line.690"></a> -<span class="sourceLineNo">691</span> * @param globalMemStoreSize<a name="line.691"></a> -<span class="sourceLineNo">692</span> */<a name="line.692"></a> -<span class="sourceLineNo">693</span> @Override<a name="line.693"></a> -<span class="sourceLineNo">694</span> public void setGlobalMemStoreLimit(long globalMemStoreSize) {<a name="line.694"></a> -<span class="sourceLineNo">695</span> this.server.getRegionServerAccounting().setGlobalMemStoreLimits(globalMemStoreSize);<a name="line.695"></a> -<span class="sourceLineNo">696</span> reclaimMemStoreMemory();<a name="line.696"></a> -<span class="sourceLineNo">697</span> }<a name="line.697"></a> -<span class="sourceLineNo">698</span><a name="line.698"></a> -<span class="sourceLineNo">699</span> interface FlushQueueEntry extends Delayed {<a name="line.699"></a> -<span class="sourceLineNo">700</span> }<a name="line.700"></a> -<span class="sourceLineNo">701</span><a name="line.701"></a> -<span class="sourceLineNo">702</span> /**<a name="line.702"></a> -<span class="sourceLineNo">703</span> * Token to insert into the flush queue that ensures that the flusher does not sleep<a name="line.703"></a> -<span class="sourceLineNo">704</span> */<a name="line.704"></a> -<span class="sourceLineNo">705</span> static class WakeupFlushThread implements FlushQueueEntry {<a name="line.705"></a> -<span class="sourceLineNo">706</span> @Override<a name="line.706"></a> -<span class="sourceLineNo">707</span> public long getDelay(TimeUnit unit) {<a name="line.707"></a> -<span class="sourceLineNo">708</span> return 0;<a name="line.708"></a> -<span class="sourceLineNo">709</span> }<a name="line.709"></a> -<span class="sourceLineNo">710</span><a name="line.710"></a> -<span class="sourceLineNo">711</span> @Override<a name="line.711"></a> -<span class="sourceLineNo">712</span> public int compareTo(Delayed o) {<a name="line.712"></a> -<span class="sourceLineNo">713</span> return -1;<a name="line.713"></a> -<span class="sourceLineNo">714</span> }<a name="line.714"></a> -<span class="sourceLineNo">715</span><a name="line.715"></a> -<span class="sourceLineNo">716</span> @Override<a name="line.716"></a> -<span class="sourceLineNo">717</span> public boolean equals(Object obj) {<a name="line.717"></a> -<span class="sourceLineNo">718</span> return (this == obj);<a name="line.718"></a> -<span class="sourceLineNo">719</span> }<a name="line.719"></a> -<span class="sourceLineNo">720</span> }<a name="line.720"></a> -<span class="sourceLineNo">721</span><a name="line.721"></a> -<span class="sourceLineNo">722</span> /**<a name="line.722"></a> -<span class="sourceLineNo">723</span> * Datastructure used in the flush queue. Holds region and retry count.<a name="line.723"></a> -<span class="sourceLineNo">724</span> * Keeps tabs on how old this object is. Implements {@link Delayed}. On<a name="line.724"></a> -<span class="sourceLineNo">725</span> * construction, the delay is zero. When added to a delay queue, we'll come<a name="line.725"></a> -<span class="sourceLineNo">726</span> * out near immediately. Call {@link #requeue(long)} passing delay in<a name="line.726"></a> -<span class="sourceLineNo">727</span> * milliseconds before readding to delay queue if you want it to stay there<a name="line.727"></a> -<span class="sourceLineNo">728</span> * a while.<a name="line.728"></a> -<span class="sourceLineNo">729</span> */<a name="line.729"></a> -<span class="sourceLineNo">730</span> static class FlushRegionEntry implements FlushQueueEntry {<a name="line.730"></a> -<span class="sourceLineNo">731</span> private final Region region;<a name="line.731"></a> -<span class="sourceLineNo">732</span><a name="line.732"></a> -<span class="sourceLineNo">733</span> private final long createTime;<a name="line.733"></a> -<span class="sourceLineNo">734</span> private long whenToExpire;<a name="line.734"></a> -<span class="sourceLineNo">735</span> private int requeueCount = 0;<a name="line.735"></a> +<span class="sourceLineNo">605</span> }<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> blocked = true;<a name="line.608"></a> +<span class="sourceLineNo">609</span> wakeupFlushThread();<a name="line.609"></a> +<span class="sourceLineNo">610</span> try {<a name="line.610"></a> +<span class="sourceLineNo">611</span> // we should be able to wait forever, but we've seen a bug where<a name="line.611"></a> +<span class="sourceLineNo">612</span> // we miss a notify, so put a 5 second bound on it at least.<a name="line.612"></a> +<span class="sourceLineNo">613</span> blockSignal.wait(5 * 1000);<a name="line.613"></a> +<span class="sourceLineNo">614</span> } catch (InterruptedException ie) {<a name="line.614"></a> +<span class="sourceLineNo">615</span> LOG.warn("Interrupted while waiting");<a name="line.615"></a> +<span class="sourceLineNo">616</span> interrupted = true;<a name="line.616"></a> +<span class="sourceLineNo">617</span> }<a name="line.617"></a> +<span class="sourceLineNo">618</span> long took = EnvironmentEdgeManager.currentTime() - start;<a name="line.618"></a> +<span class="sourceLineNo">619</span> LOG.warn("Memstore is above high water mark and block " + took + "ms");<a name="line.619"></a> +<span class="sourceLineNo">620</span> flushType = isAboveHighWaterMark();<a name="line.620"></a> +<span class="sourceLineNo">621</span> }<a name="line.621"></a> +<span class="sourceLineNo">622</span> } finally {<a name="line.622"></a> +<span class="sourceLineNo">623</span> if (interrupted) {<a name="line.623"></a> +<span class="sourceLineNo">624</span> Thread.currentThread().interrupt();<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><a name="line.627"></a> +<span class="sourceLineNo">628</span> if(blocked){<a name="line.628"></a> +<span class="sourceLineNo">629</span> final long totalTime = EnvironmentEdgeManager.currentTime() - startTime;<a name="line.629"></a> +<span class="sourceLineNo">630</span> if(totalTime > 0){<a name="line.630"></a> +<span class="sourceLineNo">631</span> this.updatesBlockedMsHighWater.add(totalTime);<a name="line.631"></a> +<span class="sourceLineNo">632</span> }<a name="line.632"></a> +<span class="sourceLineNo">633</span> LOG.info("Unblocking updates for server " + server.toString());<a name="line.633"></a> +<span class="sourceLineNo">634</span> }<a name="line.634"></a> +<span class="sourceLineNo">635</span> }<a name="line.635"></a> +<span class="sourceLineNo">636</span> } else if (isAboveLowWaterMark() != FlushType.NORMAL) {<a name="line.636"></a> +<span class="sourceLineNo">637</span> wakeupFlushThread();<a name="line.637"></a> +<span class="sourceLineNo">638</span> }<a name="line.638"></a> +<span class="sourceLineNo">639</span> scope.close();<a name="line.639"></a> +<span class="sourceLineNo">640</span> }<a name="line.640"></a> +<span class="sourceLineNo">641</span><a name="line.641"></a> +<span class="sourceLineNo">642</span> private void logMsg(String string1, long val, long max) {<a name="line.642"></a> +<span class="sourceLineNo">643</span> LOG.info("Blocking updates on " + server.toString() + ": " + string1 + " "<a name="line.643"></a> +<span class="sourceLineNo">644</span> + TraditionalBinaryPrefix.long2String(val, "", 1) + " is >= than blocking "<a name="line.644"></a> +<span class="sourceLineNo">645</span> + TraditionalBinaryPrefix.long2String(max, "", 1) + " size");<a name="line.645"></a> +<span class="sourceLineNo">646</span> }<a name="line.646"></a> +<span class="sourceLineNo">647</span><a name="line.647"></a> +<span class="sourceLineNo">648</span> @Override<a name="line.648"></a> +<span class="sourceLineNo">649</span> public String toString() {<a name="line.649"></a> +<span class="sourceLineNo">650</span> return "flush_queue="<a name="line.650"></a> +<span class="sourceLineNo">651</span> + flushQueue.size();<a name="line.651"></a> +<span class="sourceLineNo">652</span> }<a name="line.652"></a> +<span class="sourceLineNo">653</span><a name="line.653"></a> +<span class="sourceLineNo">654</span> public String dumpQueue() {<a name="line.654"></a> +<span class="sourceLineNo">655</span> StringBuilder queueList = new StringBuilder();<a name="line.655"></a> +<span class="sourceLineNo">656</span> queueList.append("Flush Queue Queue dump:\n");<a name="line.656"></a> +<span class="sourceLineNo">657</span> queueList.append(" Flush Queue:\n");<a name="line.657"></a> +<span class="sourceLineNo">658</span> java.util.Iterator<FlushQueueEntry> it = flushQueue.iterator();<a name="line.658"></a> +<span class="sourceLineNo">659</span><a name="line.659"></a> +<span class="sourceLineNo">660</span> while(it.hasNext()){<a name="line.660"></a> +<span class="sourceLineNo">661</span> queueList.append(" "+it.next().toString());<a name="line.661"></a> +<span class="sourceLineNo">662</span> queueList.append("\n");<a name="line.662"></a> +<span class="sourceLineNo">663</span> }<a name="line.663"></a> +<span class="sourceLineNo">664</span><a name="line.664"></a> +<span class="sourceLineNo">665</span> return queueList.toString();<a name="line.665"></a> +<span class="sourceLineNo">666</span> }<a name="line.666"></a> +<span class="sourceLineNo">667</span><a name="line.667"></a> +<span class="sourceLineNo">668</span> /**<a name="line.668"></a> +<span class="sourceLineNo">669</span> * Register a MemstoreFlushListener<a name="line.669"></a> +<span class="sourceLineNo">670</span> * @param listener<a name="line.670"></a> +<span class="sourceLineNo">671</span> */<a name="line.671"></a> +<span class="sourceLineNo">672</span> @Override<a name="line.672"></a> +<span class="sourceLineNo">673</span> public void registerFlushRequestListener(final FlushRequestListener listener) {<a name="line.673"></a> +<span class="sourceLineNo">674</span> this.flushRequestListeners.add(listener);<a name="line.674"></a> +<span class="sourceLineNo">675</span> }<a name="line.675"></a> +<span class="sourceLineNo">676</span><a name="line.676"></a> +<span class="sourceLineNo">677</span> /**<a name="line.677"></a> +<span class="sourceLineNo">678</span> * Unregister the listener from MemstoreFlushListeners<a name="line.678"></a> +<span class="sourceLineNo">679</span> * @param listener<a name="line.679"></a> +<span class="sourceLineNo">680</span> * @return true when passed listener is unregistered successfully.<a name="line.680"></a> +<span class="sourceLineNo">681</span> */<a name="line.681"></a> +<span class="sourceLineNo">682</span> @Override<a name="line.682"></a> +<span class="sourceLineNo">683</span> public boolean unregisterFlushRequestListener(final FlushRequestListener listener) {<a name="line.683"></a> +<span class="sourceLineNo">684</span> return this.flushRequestListeners.remove(listener);<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> /**<a name="line.687"></a> +<span class="sourceLineNo">688</span> * Sets the global memstore limit to a new size.<a name="line.688"></a> +<span class="sourceLineNo">689</span> * @param globalMemStoreSize<a name="line.689"></a> +<span class="sourceLineNo">690</span> */<a name="line.690"></a> +<span class="sourceLineNo">691</span> @Override<a name="line.691"></a> +<span class="sourceLineNo">692</span> public void setGlobalMemStoreLimit(long globalMemStoreSize) {<a name="line.692"></a> +<span class="sourceLineNo">693</span> this.server.getRegionServerAccounting().setGlobalMemStoreLimits(globalMemStoreSize);<a name="line.693"></a> +<span class="sourceLineNo">694</span> reclaimMemStoreMemory();<a name="line.694"></a> +<span class="sourceLineNo">695</span> }<a name="line.695"></a> +<span class="sourceLineNo">696</span><a name="line.696"></a> +<span class="sourceLineNo">697</span> interface FlushQueueEntry extends Delayed {<a name="line.697"></a> +<span class="sourceLineNo">698</span> }<a name="line.698"></a> +<span class="sourceLineNo">699</span><a name="line.699"></a> +<span class="sourceLineNo">700</span> /**<a name="line.700"></a> +<span class="sourceLineNo">701</span> * Token to insert into the flush queue that ensures that the flusher does not sleep<a name="line.701"></a> +<span class="sourceLineNo">702</span> */<a name="line.702"></a> +<span class="sourceLineNo">703</span> static class WakeupFlushThread implements FlushQueueEntry {<a name="line.703"></a> +<span class="sourceLineNo">704</span> @Override<a name="line.704"></a> +<span class="sourceLineNo">705</span> public long getDelay(TimeUnit unit) {<a name="line.705"></a> +<span class="sourceLineNo">706</span> return 0;<a name="line.706"></a> +<span class="sourceLineNo">707</span> }<a name="line.707"></a> +<span class="sourceLineNo">708</span><a name="line.708"></a> +<span class="sourceLineNo">709</span> @Override<a name="line.709"></a> +<span class="sourceLineNo">710</span> public int compareTo(Delayed o) {<a name="line.710"></a> +<span class="sourceLineNo">711</span> return -1;<a name="line.711"></a> +<span class="sourceLineNo">712</span> }<a name="line.712"></a> +<span class="sourceLineNo">713</span><a name="line.713"></a> +<span class="sourceLineNo">714</span> @Override<a name="line.714"></a> +<span class="sourceLineNo">715</span> public boolean equals(Object obj) {<a name="line.715"></a> +<span class="sourceLineNo">716</span> return (this == obj);<a name="line.716"></a> +<span class="sourceLineNo">717</span> }<a name="line.717"></a> +<span class="sourceLineNo">718</span> }<a name="line.718"></a> +<span class="sourceLineNo">719</span><a name="line.719"></a> +<span class="sourceLineNo">720</span> /**<a name="line.720"></a> +<span class="sourceLineNo">721</span> * Datastructure used in the flush queue. <TRUNCATED>
