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https://issues.apache.org/jira/browse/HBASE-2761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12880888#action_12880888
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Jonathan Gray commented on HBASE-2761:
--------------------------------------
You happen to look at the heap dump? How much memory were you running the
client with and how many regions in the table?
> GC overhead limit exceeded in client
> ------------------------------------
>
> Key: HBASE-2761
> URL: https://issues.apache.org/jira/browse/HBASE-2761
> Project: HBase
> Issue Type: Bug
> Components: client
> Affects Versions: 0.21.0
> Reporter: Todd Lipcon
> Priority: Blocker
> Fix For: 0.21.0
>
>
> Never seen this prior to the new meta prefetch stuff. Saw it tonight on a
> YCSB run after about an hour.
> Exception in thread "Thread-9" java.lang.OutOfMemoryError: GC overhead limit
> exceeded
> at java.util.Hashtable.rehash(Hashtable.java:356)
> at java.util.Hashtable.put(Hashtable.java:412)
> at java.util.Properties.setProperty(Properties.java:143)
> at
> org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1337)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:1227)
> at
> org.apache.hadoop.conf.Configuration.getProps(Configuration.java:1156)
> at
> org.apache.hadoop.conf.Configuration.iterator(Configuration.java:1198)
> at
> org.apache.hadoop.hbase.HBaseConfiguration.hashCode(HBaseConfiguration.java:112)
> at
> org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:121)
> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:130)
> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:99)
> at
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:102)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.prefetchRegionCache(HConnectionManager.java:733)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:784)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:678)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.processBatchOfPuts(HConnectionManager.java:1424)
> at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:660)
> at org.apache.hadoop.hbase.client.HTable.doPut(HTable.java:545)
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