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Posted to issues@hbase.apache.org by "Nicolas Liochon (JIRA)" <ji...@apache.org> on 2013/08/06 18:28:48 UTC
[jira] [Commented] (HBASE-9140) NPE in AsyncProcess
[ https://issues.apache.org/jira/browse/HBASE-9140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13730912#comment-13730912 ]
Nicolas Liochon commented on HBASE-9140:
----------------------------------------
That's this line, yes?
loc = hConnection.locateRegion(this.tableName, row.getRow());
hConnection is final, so it should come from "row"...
> NPE in AsyncProcess
> -------------------
>
> Key: HBASE-9140
> URL: https://issues.apache.org/jira/browse/HBASE-9140
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 0.95.2
> Environment: 0.95.2 + Hadoop 2.0.4
> Reporter: Elliott Clark
>
> Running YCSB progress got stuck for quite a while and then a Null Pointer Exception was thrown:
> {noformat}
> 230 sec: 1266253 operations; 0 current ops/sec;
> 240 sec: 1266253 operations; 0 current ops/sec;
> 250 sec: 1266253 operations; 0 current ops/sec;
> 260 sec: 1266253 operations; 0 current ops/sec;
> 270 sec: 1266253 operations; 0 current ops/sec;
> 280 sec: 1266253 operations; 0 current ops/sec;
> 290 sec: 1266253 operations; 0 current ops/sec;
> 300 sec: 1266253 operations; 0 current ops/sec;
> 310 sec: 1266253 operations; 0 current ops/sec;
> 320 sec: 1266253 operations; 0 current ops/sec;
> 330 sec: 1266253 operations; 0 current ops/sec;
> 340 sec: 1266253 operations; 0 current ops/sec;
> 350 sec: 1266253 operations; 0 current ops/sec;
> 360 sec: 1266253 operations; 0 current ops/sec;
> 370 sec: 1266253 operations; 0 current ops/sec;
> 380 sec: 1266253 operations; 0 current ops/sec;
> 390 sec: 1266253 operations; 0 current ops/sec;
> Exception in thread "Thread-26" java.lang.NullPointerException
> at org.apache.hadoop.hbase.client.AsyncProcess.findDestLocation(AsyncProcess.java:288)
> at org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:233)
> at org.apache.hadoop.hbase.client.HTable.backgroundFlushCommits(HTable.java:811)
> at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:1192)
> at com.yahoo.ycsb.db.HBaseClient.cleanup(HBaseClient.java:106)
> at com.yahoo.ycsb.DBWrapper.cleanup(DBWrapper.java:73)
> at com.yahoo.ycsb.ClientThread.run(Client.java:307)
> 400 sec: 1266253 operations; 0 current ops/sec; [UPDATE AverageLatency(us)=1341720] [INSERT AverageLatency(us)=197941421.07] [CLEANUP AverageLatency(us)=1342113]
> Exception in thread "Thread-16" java.lang.NullPointerException
> at org.apache.hadoop.hbase.client.AsyncProcess.findDestLocation(AsyncProcess.java:288)
> at org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:233)
> at org.apache.hadoop.hbase.client.HTable.backgroundFlushCommits(HTable.java:811)
> at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:1192)
> at com.yahoo.ycsb.db.HBaseClient.cleanup(HBaseClient.java:106)
> at com.yahoo.ycsb.DBWrapper.cleanup(DBWrapper.java:73)
> at com.yahoo.ycsb.ClientThread.run(Client.java:307)
> 410 sec: 1266253 operations; 0 current ops/sec; [INSERT AverageLatency(us)=208462580.75]
> {noformat}
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