[jira] [Commented] (HBASE-14240) Unactionable WARN messages in wal.ProcedureWALFormatReader

["Matteo Bertozzi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-14240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14701650#comment-14701650 ] 

Matteo Bertozzi commented on HBASE-14240:
-----------------------------------------

is the master shutdown clean? i'm not able to understand it from the logs.
in theory on a clean master shutdown the trailer should be written to the wal and the file closed. which seems not to be happened here. so you get the warning that is basically saying that that wal is from a non clean shutdown.

{noformat}
2015-08-18 00:26:15,093 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Starting WAL Procedure Store lease recovery
2015-08-18 00:26:15,095 WARN  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Log directory not found: File hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs does not exist.
2015-08-18 00:26:15,107 DEBUG [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Roll new state log: 1
----- MASTER RESTARTED ----
2015-08-18 00:42:59,647 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Starting WAL Procedure Store lease recovery
2015-08-18 00:42:59,676 WARN  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Unable to read tracker for hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log - Missing trailer: size=9 startPos=9
2015-08-18 00:42:59,703 DEBUG [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Roll new state log: 2
2015-08-18 00:42:59,705 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Lease acquired for flushLogId: 2
2015-08-18 00:42:59,711 WARN  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.ProcedureWALFormatReader: nothing left to decode. exiting with missing EOF
2015-08-18 00:42:59,711 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.ProcedureWALFormatReader: No active entry found in state log hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log. removing it
{noformat}

> Unactionable WARN messages in wal.ProcedureWALFormatReader
> ----------------------------------------------------------
>
>                 Key: HBASE-14240
>                 URL: https://issues.apache.org/jira/browse/HBASE-14240
>             Project: HBase
>          Issue Type: Bug
>          Components: master, proc-v2
>    Affects Versions: 1.1.2
>            Reporter: Nick Dimiduk
>            Priority: Minor
>         Attachments: ndimiduk-rc-dist-1.tgz
>
>
> While testing 1.1.2RC0, I notice the following messages in my master log.
> {noformat}
> 2015-08-18 00:42:59,646 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] procedure2.ProcedureExecutor: Starting procedure executor threads=5
> 2015-08-18 00:42:59,647 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Starting WAL Procedure Store lease recovery
> 2015-08-18 00:42:59,652 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] util.FSHDFSUtils: Recovering lease on dfs file hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log
> 2015-08-18 00:42:59,664 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] util.FSHDFSUtils: recoverLease=true, attempt=0 on file=hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log after 10ms
> 2015-08-18 00:42:59,665 DEBUG [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Opening state-log: FileStatus{path=hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log; isDirectory=false; length=9; replication=3; blocksize=134217728; modification_time=1439858084806; access_time=1439857575101; owner=hbase; group=hdfs; permission=rw-r--r--; isSymlink=false}
> 2015-08-18 00:42:59,676 WARN  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Unable to read tracker for hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log - Missing trailer: size=9 startPos=9
> 2015-08-18 00:42:59,703 DEBUG [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Roll new state log: 2
> 2015-08-18 00:42:59,705 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Lease acquired for flushLogId: 2
> 2015-08-18 00:42:59,711 WARN  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.ProcedureWALFormatReader: nothing left to decode. exiting with missing EOF
> 2015-08-18 00:42:59,711 INFO  [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.ProcedureWALFormatReader: No active entry found in state log hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log. removing it
> 2015-08-18 00:42:59,711 DEBUG [ndimiduk-rc-dist-1:60000.activeMasterManager] wal.WALProcedureStore: Remove log: hdfs://ndimiduk-rc-dist-1.openstacklocal:8020/apps/hbase/data/MasterProcWALs/state-00000000000000000001.log
> {noformat}
> These log lines are raised immediately after performing an in-place master upgrade from 0.98.0. Master initialized successfully and with no further errors.



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