Hmaster crashes caused by splitting log.
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Key: HBASE-4028
URL: https://issues.apache.org/jira/browse/HBASE-4028
Project: HBase
Issue Type: Bug
Components: master
Affects Versions: 0.90.3
Reporter: gaojinchao
Fix For: 0.90.4
In my performance cluster(0.90.3), The Hmaster memory from 100 M up to 4G when
one region server crashed.
I added some print in function doneWriting and found the values of
totalBuffered is negative.
10:29:52,119 WARN org.apache.hadoop.hbase.regionserver.wal.HLogSplitter:
gjc:release Used -565832
hbase-root-master-157-5-111-21.log:2011-06-24 10:29:52,119 WARN
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: gjc:release Used
-565832release size25168
void doneWriting(RegionEntryBuffer buffer) {
synchronized (this) {
LOG.warn("gjc1: relase currentlyWriting +biggestBufferKey " +
buffer.encodedRegionName );
boolean removed = currentlyWriting.remove(buffer.encodedRegionName);
assert removed;
}
long size = buffer.heapSize();
synchronized (dataAvailable) {
totalBuffered -= size;
LOG.warn("gjc:release Used " + totalBuffered );
// We may unblock writers
dataAvailable.notifyAll();
}
LOG.warn("gjc:release Used " + totalBuffered + "release size"+ size);
}
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