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Posted to issues@trafodion.apache.org by "Alice Chen (JIRA)" <ji...@apache.org> on 2015/07/22 20:20:30 UTC

[jira] [Created] (TRAFODION-1236) LP Bug: 1453973 - Hbase exception will cause TRX coprocessor to forget transaction

Alice Chen created TRAFODION-1236:
-------------------------------------

             Summary: LP Bug: 1453973 - Hbase exception will cause TRX coprocessor to forget transaction
                 Key: TRAFODION-1236
                 URL: https://issues.apache.org/jira/browse/TRAFODION-1236
             Project: Apache Trafodion
          Issue Type: Bug
          Components: dtm
            Reporter: Buddy Wilbanks
            Assignee: Buddy Wilbanks
            Priority: Critical
             Fix For: 2.0-incubating


Tried to cut memstore size down to 128Meg from 256Meg to test whether hstores would be managed faster improving performance.  Now we are streaming these errors:

2015-05-11 00:00:56,050 FATAL [B.DefaultRpcServer.handler=84,queue=6,port=60020] transactional.TrxRegionEndpoint: TrxRegionEndpoint coprocessor: Asked to commit unknown transaction: 12898488778 in region TRAFODION.JAVABENCH.OE_ORDERLINE_512,\x00\x00\x00\x1D\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,1431132915525.cc9529e054
ff8ea6a97712d088910e2a.

In volume:

/var/log/hbase> pdsh $MY_NODES "grep FATAL /var/log/hbase/*out |grep -c ORDERLINE" |sort
n011: 457811
n012: 473565
n013: 488968
n014: 549685
n015: 306442
n016: 323001
n017: 265787
n018: 372855
n019: 328031
n020: 339119

Apparently any exception encountered by the TRX coprocessor, will cause the transaction to be forgotten, resulting in the commit unknown transaction message.



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