[HBASE-7339] Splitting a hfilelink causes region servers to go down.

• Type: Sub-task
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: hbase-6055
• Fix Version/s: 0.95.0
• Component/s: snapshots
• Hadoop Flags: Reviewed
• Assignee: Jonathan Hsieh
• Reporter: Jonathan Hsieh
• Created: 12/Dec/12 19:56
• Updated: 23/Sep/13 18:30
• Resolved: 26/Dec/12 16:32

Description

Steps:

• Have a single region table t with 15 hfiles in it.
• Snapshot it. (was done using online snapshot from HBASE-7321)
• Clone a snapshot to table t'.
• t' has its region do a post-open task that attempts to compact region. policy does not compact all files. (default seems to be 10)
• after compaction we have hfile links and real hfiles mixed in the region
• t' starts splitting
• creating split references, opening daughers fails
• hfile links are "split", creating hfile link daughter refs. <<hfile>-<region>-<table>>.<parentregion>
• these "split" hfile links are interpreted as hfile links with table <table>.<parentregion> -> <<hfile>-<region>>-<<table>.<parentregion>> (groupings interpreted incorrectly)
• Since this is after the splitting PONR, this aborts the server. It then spreads to the next server.