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Posted to dev@hbase.apache.org by "Elliott Clark (JIRA)" <ji...@apache.org> on 2013/08/06 18:12:47 UTC
[jira] [Created] (HBASE-9140) NPE in AsyncProcess
Elliott Clark created HBASE-9140:
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Summary: 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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