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Posted to commits@hbase.apache.org by ap...@apache.org on 2009/05/12 20:54:43 UTC

svn commit: r774017 - /hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/MemcacheFlusher.java

Author: apurtell
Date: Tue May 12 18:54:43 2009
New Revision: 774017

URL: http://svn.apache.org/viewvc?rev=774017&view=rev
Log:
HBASE-1058 Prevent runaway compactions; patch 1058-2-v1

Modified:
    hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/MemcacheFlusher.java

Modified: hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/MemcacheFlusher.java
URL: http://svn.apache.org/viewvc/hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/MemcacheFlusher.java?rev=774017&r1=774016&r2=774017&view=diff
==============================================================================
--- hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/MemcacheFlusher.java (original)
+++ hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/MemcacheFlusher.java Tue May 12 18:54:43 2009
@@ -223,32 +223,26 @@
    */
   private boolean flushRegion(HRegion region, boolean removeFromQueue) {
     // Wait until it is safe to flush.
-    // TODO: Fix.  This block doesn't work if more than one store.
-    int count = 0;
-    boolean triggered = false;
-    while (count++ < (blockingWaitTime / 500)) {
+    boolean toomany;
+    do {
+      toomany = false;
       for (Store hstore: region.stores.values()) {
         int files = hstore.getStorefilesCount();
         if (files > this.blockingStoreFilesNumber) {
-          if (!triggered) {
-            server.compactSplitThread.compactionRequested(region, getName());
-            LOG.info("Too many store files in store " + hstore + ": " +
-              files + ", pausing");
-            triggered = true;
+          if (LOG.isDebugEnabled()) {
+            LOG.debug("Too many store files in store " + hstore + ": " +
+              files + ", waiting");
           }
+          toomany = true;
+          server.compactSplitThread.compactionRequested(region, getName());
           try {
-            Thread.sleep(500);
+            Thread.sleep(blockingWaitTime);
           } catch (InterruptedException e) {
             // ignore
           }
-          continue;
         }
       }
-      if (triggered) {
-        LOG.info("Compaction triggered on region " + region + ", proceeding");
-      }
-      break;
-    }
+    } while (toomany);
     synchronized (regionsInQueue) {
       // See comment above for removeFromQueue on why we do not
       // take the region out of the set. If removeFromQueue is true, remove it