[ACCUMULO-1840] Deleted WAL still referenced in !METADATA

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Component/s: gc, master, tserver
• Assignee: Unassigned
• Reporter: Josh Elser
• Created: 01/Nov/13 02:04
• Updated: 20/Feb/14 23:03
• Resolved: 02/Nov/13 03:15

Description

Running b0da55 locally with hadoop2.2.0.

I wrote some data to a number of tables. Killed the tabletserver. The tabletserver failed to complete recovery because it ran out of memory.

I upped the tserver's heap, and restarted it. !METADATA and !!ROOT are online and have all tablets assigned, but none of the other tables are coming online. There's a log entry for each of the tables that aren't online. Each of those tables have only one tablet.

log:localhost+9997/hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/3f941aa2-0cf8-42f5-8135-fb51a07c5c1a

Looking for that WAL in the GC's log results in:

2013-10-31 21:03:26,805 [util.MetadataTableUtil] INFO : Returning logs [!!R<< hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/56c7a37f-06bd-49ad-ad18-72dd787f8ae3 (1), !!R<< hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/3f941aa2-0cf8-42f5-8135-fb51a07c5c1a (1)] for extent !!R<<
2013-10-31 21:03:26,815 [gc.GarbageCollectWriteAheadLogs] DEBUG: deleted [hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/6f1facae-7d5f-4c74-8a41-8621921af85f, hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/56c7a37f-06bd-49ad-ad18-72dd787f8ae3, hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/3f941aa2-0cf8-42f5-8135-fb51a07c5c1a] from localhost+9997
2013-10-31 21:08:27,105 [util.MetadataTableUtil] INFO : Returning logs [!!R<< hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/3f941aa2-0cf8-42f5-8135-fb51a07c5c1a (1)] for extent !!R<<
2013-10-31 21:08:27,115 [gc.GarbageCollectWriteAheadLogs] DEBUG: deleted [hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/56c7a37f-06bd-49ad-ad18-72dd787f8ae3, hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/3f941aa2-0cf8-42f5-8135-fb51a07c5c1a] from localhost+9997
2013-10-31 21:14:25,667 [gc.GarbageCollectWriteAheadLogs] DEBUG: deleted [hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/20b1adb0-9c5f-4027-82d2-c8e1a1be9f87, hdfs://localhost:8020/accumulo1.6/wal/localhost+9997/3f941aa2-0cf8-42f5-8135-fb51a07c5c1a] from localhost+9997
2013-10-31 21:14:25,667 [gc.GarbageCollectWriteAheadLogs] DEBUG: Removing sorted WAL hdfs://localhost:8020/accumulo1.6/recovery/3f941aa2-0cf8-42f5-8135-fb51a07c5c1a

Issue Links

• is duplicated by: ACCUMULO-1830 illegal state in RestartStressIT