Ivan Kelly created BOOKKEEPER-569:
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Summary: Critical performance bug in InterleavedLedgerStorage
Key: BOOKKEEPER-569
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-569
Project: Bookkeeper
Issue Type: Bug
Reporter: Ivan Kelly
Assignee: Ivan Kelly
Priority: Blocker
Fix For: 4.3.0, 4.2.1
There's a synchronization on InterleavedLedgerStorage#flush(), which kills
performance when you're writing to many ledgers on a single bookie. Both #flush
and #addEntry are synchronized, which blocks any adds being serviced while the
sync thread is running.
The sync on #addEntry has always been there, but on #flush it has only existed
since BOOKKEEPER-293. The addition was obviously a mistake.
Fix is simply to remove it.
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