Matteo Merli created BOOKKEEPER-887:
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Summary: Allow to use multiple bookie journals
Key: BOOKKEEPER-887
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-887
Project: Bookkeeper
Issue Type: Improvement
Reporter: Matteo Merli
Assignee: Matteo Merli
Fix For: 4.4.0
Using multiple independent journals in the bookie can improve the bookie
throughput and write latencies.
When using HDDs for the journal, the writes and fsyncs can be spread across
multiple discs (or RAID groups) on different filesystem mount points.
If the journal is writing to an SSD, having multiple journal threads writing to
the same disc will let the bookie to better utilize the disk write bandwidth.
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