[HBASE-21509] /hbase/WALs directory has large number of hlogs, which cannot be deleted correctly

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.3.1
• Assignee: Unassigned
• Reporter: Bo Cui
• Created: 24/Nov/18 03:31
• Updated: 27/Nov/18 08:48

Description

When HMaster is initializing, if getMetaRegionLocation() returns null value, then some wal(including metaWAL) cannot be deleted.

for example
before restarts
/hbase/WALs/10-10-10-129,21302,1543048601526/10-10-10-129%2C21302%2C1543048601526.meta.1543048613941.meta
after restarts
/hbase/WALs/10-10-10-129,21302,1543048601526-splitting/10-10-10-129%2C21302%2C1543048601526.meta.1543048613941.meta
/hbase/WALs/10-10-10-29,21302,1543048867527/10-10-10-29%2C21302%2C1543048867527.meta.1543048907265.meta

Issue Links

• Blocked: HBASE-14223 Meta WALs are not cleared if meta region was closed and RS aborts
• Blocked: HBASE-21413 Empty meta log doesn't get split when restart whole cluster