Eric Newton created ACCUMULO-1888:
-------------------------------------
Summary: WALog entries not properly deleted after recover during
upgrade 1.5 -> 1.6
Key: ACCUMULO-1888
URL: https://issues.apache.org/jira/browse/ACCUMULO-1888
Project: Accumulo
Issue Type: Sub-task
Components: tserver
Reporter: Eric Newton
Assignee: Eric Newton
Priority: Blocker
Fix For: 1.6.0
While investigating ACCUMULO-1831, I got close consistency check failures:
{noformat}
2013-11-13 09:47:43,797 [tserver.Tablet] ERROR: Closed tablet 2;row_0000020000<
has walog entries in !METADATA [2;row_0000020000;
da20ecd9-2e3d-4165-ae49-351b56178b2f (12)]
{noformat}
Examining the WALog for !METADATA updates to this tablet, I see the walog entry
being deleted:
{noformat}
MANY_MUTATIONS 4 5
1 mutations:
2;row_0000020000
file:hdfs://hostname:9000/accumulo/tables/2/t-0000003/F000008v.rf
[system]:73 [] 863869,20001
srv:time [system]:73 [] M0
last:141e12559a3ffc2 [system]:73 [] localhost:9997
log:127.0.0.1:9997/127.0.0.1+9997/da20ecd9-2e3d-4165-ae49-351b56178b2f
[system]:73 [] <deleted>
log:127.0.0.1+9997/da20ecd9-2e3d-4165-ae49-351b56178b2f
log:localhost:9997/hdfs://hostname:9000/accumulo/wal/localhost+9997/48f53ae2-2b54-4309-88c7-003c723dcd0e
[system]:73 [] <deleted>
srv:flush [system]:73 [] 0
srv:lock [system]:73 []
tservers/localhost:9997/zlock-0000000000$141e12559a3ffc2
{noformat}
The metadata table contained the key:
{noformat}
2;row_0000020000 log:127.0.0.1+9997/da20ecd9-2e3d-4165-ae49-351b56178b2f
{noformat}
But this key was used to remove it:
{noformat}
2;row_0000020000
log:127.0.0.1:9997/127.0.0.1+9997/da20ecd9-2e3d-4165-ae49-351b56178b2f
{noformat}
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