http://git-wip-us.apache.org/repos/asf/hbase-site/blob/92a26cfb/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushQueueEntry.html
----------------------------------------------------------------------
diff --git
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushQueueEntry.html
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushQueueEntry.html
index 4c42811..0bc3ddb 100644
---
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushQueueEntry.html
+++
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushQueueEntry.html
@@ -563,381 +563,390 @@
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been put off, then emit a log message.<a name="line.555"></a>
<span class="sourceLineNo">556</span> if (fqe.getRequeueCount() <=
0) {<a name="line.556"></a>
<span class="sourceLineNo">557</span> // Note: We don't impose
blockingStoreFiles constraint on meta regions<a name="line.557"></a>
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region.getRegionInfo().getEncodedName() + " has too many " +<a
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up to " + this.blockingWaitTime + "ms");<a name="line.559"></a>
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(!this.server.compactSplitThread.requestSplit(region)) {<a name="line.560"></a>
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this.server.compactSplitThread.requestSystemCompaction(region,<a
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Thread.currentThread().getName());<a name="line.563"></a>
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((RemoteException)e).unwrapRemoteException() : e;<a name="line.566"></a>
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Bytes.toStringBinary(region.getRegionInfo().getRegionName()), e);<a
name="line.568"></a>
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it come back out of the queue<a name="line.573"></a>
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this.flushQueue.add(fqe.requeue(this.blockingWaitTime / 100));<a
name="line.575"></a>
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name="line.577"></a>
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queue. If false, when we were called<a name="line.587"></a>
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removed it).<a name="line.589"></a>
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we want to flush all store.<a name="line.590"></a>
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successfully flushed, false otherwise. If<a name="line.591"></a>
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name="line.596"></a>
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{<a name="line.597"></a>
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FlushRegionEntry if available<a name="line.599"></a>
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emergencyFlush) {<a name="line.600"></a>
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name="line.603"></a>
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name="line.607"></a>
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region.flushcache(forceFlushAllStores, false, tracker);<a name="line.611"></a>
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flushResult.isCompactionNeeded();<a name="line.612"></a>
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server.compactSplitThread.requestSystemCompaction(region,
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{<a name="line.620"></a>
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way to do this is a restart of<a name="line.623"></a>
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is probably bad (HBASE-644 is a case<a name="line.624"></a>
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the hdfs check).<a name="line.625"></a>
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required. Forcing server shutdown", ex);<a name="line.626"></a>
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name="line.628"></a>
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? ((RemoteException) ex).unwrapRemoteException() : ex;<a name="line.629"></a>
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name="line.631"></a>
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Bytes.toStringBinary(region.getRegionInfo().getRegionName()))<a
name="line.633"></a>
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name="line.634"></a>
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name="line.635"></a>
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name="line.636"></a>
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name="line.647"></a>
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flushRequestListeners) {<a name="line.654"></a>
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blocks callers until we're down to a safe<a name="line.683"></a>
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TraceUtil.createTrace("MemStoreFluser.reclaimMemStoreMemory");<a
name="line.687"></a>
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isAboveHighWaterMark();<a name="line.688"></a>
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{<a name="line.689"></a>
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TraceUtil.addTimelineAnnotation("Force Flush. We're above high water mark.");<a
name="line.690"></a>
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server.cacheFlusher.setFlushType(flushType);<a name="line.699"></a>
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server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a
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server.getRegionServerAccounting().getGlobalMemStoreLimit());<a
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server.getRegionServerAccounting().getGlobalMemStoreOffHeapSize(),<a
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server.getRegionServerAccounting().getGlobalMemStoreLimit());<a
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server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a
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server.getRegionServerAccounting().getGlobalOnHeapMemStoreLimit());<a
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name="line.794"></a>
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this.flushRequestListeners.add(listener);<a name="line.795"></a>
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files({}); delaying flush up to {} ms",<a name="line.558"></a>
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region.getRegionInfo().getEncodedName(), getStoreFileCount(region),<a
name="line.559"></a>
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name="line.560"></a>
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(!this.server.compactSplitThread.requestSplit(region)) {<a name="line.561"></a>
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this.server.compactSplitThread.requestSystemCompaction(region,<a
name="line.563"></a>
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Thread.currentThread().getName());<a name="line.564"></a>
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name="line.565"></a>
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((RemoteException)e).unwrapRemoteException() : e;<a name="line.567"></a>
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failed for region " +<a name="line.568"></a>
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Bytes.toStringBinary(region.getRegionInfo().getRegionName()), e);<a
name="line.569"></a>
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it come back out of the queue<a name="line.574"></a>
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this.blockingWaitTime / 100 ms.<a name="line.575"></a>
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this.flushQueue.add(fqe.requeue(this.blockingWaitTime / 100));<a
name="line.576"></a>
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but it's ok<a name="line.577"></a>
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name="line.578"></a>
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fqe.isForceFlushAllStores(), fqe.getTracker());<a name="line.581"></a>
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+<span class="sourceLineNo">584</span> /**<a name="line.584"></a>
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name="line.585"></a>
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name="line.586"></a>
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being force flushed. If true the region<a name="line.587"></a>
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queue. If false, when we were called<a name="line.588"></a>
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we got the entry to flush by calling<a name="line.589"></a>
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removed it).<a name="line.590"></a>
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we want to flush all store.<a name="line.591"></a>
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successfully flushed, false otherwise. If<a name="line.592"></a>
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log messages explaining why the region was<a name="line.593"></a>
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region, boolean emergencyFlush, boolean forceFlushAllStores,<a
name="line.596"></a>
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name="line.597"></a>
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{<a name="line.598"></a>
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this.regionsInQueue.remove(region);<a name="line.599"></a>
+<span class="sourceLineNo">600</span> // Use the start time of the
FlushRegionEntry if available<a name="line.600"></a>
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emergencyFlush) {<a name="line.601"></a>
+<span class="sourceLineNo">602</span> // Need to remove from region
from delay queue. When NOT an<a name="line.602"></a>
+<span class="sourceLineNo">603</span> // emergencyFlush, then item was
removed via a flushQueue.poll.<a name="line.603"></a>
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name="line.604"></a>
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+<span class="sourceLineNo">607</span><a name="line.607"></a>
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name="line.608"></a>
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name="line.609"></a>
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emergencyFlush);<a name="line.611"></a>
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region.flushcache(forceFlushAllStores, false, tracker);<a name="line.612"></a>
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flushResult.isCompactionNeeded();<a name="line.613"></a>
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name="line.614"></a>
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this.server.compactSplitThread.requestSplit(region);<a name="line.617"></a>
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server.compactSplitThread.requestSystemCompaction(region,
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+<span class="sourceLineNo">621</span> } catch (DroppedSnapshotException ex)
{<a name="line.621"></a>
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places. If it fails in a critical<a name="line.622"></a>
+<span class="sourceLineNo">623</span> // section, we get a
DroppedSnapshotException and a replay of wal<a name="line.623"></a>
+<span class="sourceLineNo">624</span> // is required. Currently the only
way to do this is a restart of<a name="line.624"></a>
+<span class="sourceLineNo">625</span> // the server. Abort because hdfs
is probably bad (HBASE-644 is a case<a name="line.625"></a>
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the hdfs check).<a name="line.626"></a>
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required. Forcing server shutdown", ex);<a name="line.627"></a>
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name="line.629"></a>
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? ((RemoteException) ex).unwrapRemoteException() : ex;<a name="line.630"></a>
+<span class="sourceLineNo">631</span> LOG.error(<a name="line.631"></a>
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name="line.632"></a>
+<span class="sourceLineNo">633</span> + (region != null ? (" for
region " +<a name="line.633"></a>
+<span class="sourceLineNo">634</span>
Bytes.toStringBinary(region.getRegionInfo().getRegionName()))<a
name="line.634"></a>
+<span class="sourceLineNo">635</span> : ""), ex);<a
name="line.635"></a>
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name="line.637"></a>
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name="line.640"></a>
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+<span class="sourceLineNo">646</span><a name="line.646"></a>
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region, boolean emergencyFlush) {<a name="line.647"></a>
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name="line.648"></a>
+<span class="sourceLineNo">649</span> if (emergencyFlush) {<a
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name="line.652"></a>
+<span class="sourceLineNo">653</span> }<a name="line.653"></a>
+<span class="sourceLineNo">654</span> }<a name="line.654"></a>
+<span class="sourceLineNo">655</span> for (FlushRequestListener listener :
flushRequestListeners) {<a name="line.655"></a>
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region);<a name="line.656"></a>
+<span class="sourceLineNo">657</span> }<a name="line.657"></a>
+<span class="sourceLineNo">658</span> }<a name="line.658"></a>
+<span class="sourceLineNo">659</span><a name="line.659"></a>
+<span class="sourceLineNo">660</span> private void wakeUpIfBlocking() {<a
name="line.660"></a>
+<span class="sourceLineNo">661</span> synchronized (blockSignal) {<a
name="line.661"></a>
+<span class="sourceLineNo">662</span> blockSignal.notifyAll();<a
name="line.662"></a>
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+<span class="sourceLineNo">665</span><a name="line.665"></a>
+<span class="sourceLineNo">666</span> private boolean
isTooManyStoreFiles(Region region) {<a name="line.666"></a>
+<span class="sourceLineNo">667</span><a name="line.667"></a>
+<span class="sourceLineNo">668</span> // When compaction is disabled, the
region is flushable<a name="line.668"></a>
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(!region.getTableDescriptor().isCompactionEnabled()) {<a name="line.669"></a>
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+<span class="sourceLineNo">672</span><a name="line.672"></a>
+<span class="sourceLineNo">673</span> for (Store store :
region.getStores()) {<a name="line.673"></a>
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{<a name="line.674"></a>
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name="line.675"></a>
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+<span class="sourceLineNo">679</span> }<a name="line.679"></a>
+<span class="sourceLineNo">680</span><a name="line.680"></a>
+<span class="sourceLineNo">681</span> private int getStoreFileCount(Region
region) {<a name="line.681"></a>
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+<span class="sourceLineNo">683</span> for (Store store :
region.getStores()) {<a name="line.683"></a>
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store.getStorefilesCount();<a name="line.684"></a>
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+<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> * Check if the regionserver's memstore
memory usage is greater than the<a name="line.690"></a>
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biggest memstores until we're down<a name="line.691"></a>
+<span class="sourceLineNo">692</span> * to the lower limit. This method
blocks callers until we're down to a safe<a name="line.692"></a>
+<span class="sourceLineNo">693</span> * amount of memstore consumption.<a
name="line.693"></a>
+<span class="sourceLineNo">694</span> */<a name="line.694"></a>
+<span class="sourceLineNo">695</span> public void reclaimMemStoreMemory() {<a
name="line.695"></a>
+<span class="sourceLineNo">696</span> TraceScope scope =
TraceUtil.createTrace("MemStoreFluser.reclaimMemStoreMemory");<a
name="line.696"></a>
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isAboveHighWaterMark();<a name="line.697"></a>
+<span class="sourceLineNo">698</span> if (flushType != FlushType.NORMAL)
{<a name="line.698"></a>
+<span class="sourceLineNo">699</span>
TraceUtil.addTimelineAnnotation("Force Flush. We're above high water mark.");<a
name="line.699"></a>
+<span class="sourceLineNo">700</span> long start =
EnvironmentEdgeManager.currentTime();<a name="line.700"></a>
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name="line.701"></a>
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name="line.702"></a>
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name="line.703"></a>
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name="line.704"></a>
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+<span class="sourceLineNo">706</span> flushType =
isAboveHighWaterMark();<a name="line.706"></a>
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FlushType.NORMAL && !server.isStopped()) {<a name="line.707"></a>
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server.cacheFlusher.setFlushType(flushType);<a name="line.708"></a>
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name="line.709"></a>
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EnvironmentEdgeManager.currentTime();<a name="line.710"></a>
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(!server.getRegionServerAccounting().isOffheap()) {<a name="line.711"></a>
+<span class="sourceLineNo">712</span> logMsg("global memstore
heapsize",<a name="line.712"></a>
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server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a
name="line.713"></a>
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server.getRegionServerAccounting().getGlobalMemStoreLimit());<a
name="line.714"></a>
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name="line.715"></a>
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name="line.716"></a>
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ABOVE_OFFHEAP_HIGHER_MARK:<a name="line.717"></a>
+<span class="sourceLineNo">718</span> logMsg("the global
offheap memstore datasize",<a name="line.718"></a>
+<span class="sourceLineNo">719</span>
server.getRegionServerAccounting().getGlobalMemStoreOffHeapSize(),<a
name="line.719"></a>
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server.getRegionServerAccounting().getGlobalMemStoreLimit());<a
name="line.720"></a>
+<span class="sourceLineNo">721</span> break;<a
name="line.721"></a>
+<span class="sourceLineNo">722</span> case
ABOVE_ONHEAP_HIGHER_MARK:<a name="line.722"></a>
+<span class="sourceLineNo">723</span> logMsg("global memstore
heapsize",<a name="line.723"></a>
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server.getRegionServerAccounting().getGlobalMemStoreHeapSize(),<a
name="line.724"></a>
+<span class="sourceLineNo">725</span>
server.getRegionServerAccounting().getGlobalOnHeapMemStoreLimit());<a
name="line.725"></a>
+<span class="sourceLineNo">726</span> break;<a
name="line.726"></a>
+<span class="sourceLineNo">727</span> default:<a
name="line.727"></a>
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name="line.728"></a>
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+<span class="sourceLineNo">730</span> }<a name="line.730"></a>
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name="line.732"></a>
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name="line.733"></a>
+<span class="sourceLineNo">734</span> try {<a name="line.734"></a>
+<span class="sourceLineNo">735</span> // we should be able to
wait forever, but we've seen a bug where<a name="line.735"></a>
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a 5 second bound on it at least.<a name="line.736"></a>
+<span class="sourceLineNo">737</span> blockSignal.wait(5 *
1000);<a name="line.737"></a>
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ie) {<a name="line.738"></a>
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waiting");<a name="line.739"></a>
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name="line.740"></a>
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EnvironmentEdgeManager.currentTime() - start;<a name="line.742"></a>
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high water mark and block " + took + "ms");<a name="line.743"></a>
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isAboveHighWaterMark();<a name="line.744"></a>
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Thread.currentThread().interrupt();<a name="line.748"></a>
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this.updatesBlockedMsHighWater.add(totalTime);<a name="line.755"></a>
+<span class="sourceLineNo">756</span> }<a name="line.756"></a>
+<span class="sourceLineNo">757</span> LOG.info("Unblocking updates
for server " + server.toString());<a name="line.757"></a>
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{<a name="line.762"></a>
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server.cacheFlusher.setFlushType(flushType);<a name="line.763"></a>
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name="line.768"></a>
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val, long max) {<a name="line.772"></a>
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>= blocking {}", type,<a name="line.773"></a>
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TraditionalBinaryPrefix.long2String(val, "", 1),<a name="line.774"></a>
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TraditionalBinaryPrefix.long2String(max, "", 1));<a name="line.775"></a>
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