[
https://issues.apache.org/jira/browse/BOOKKEEPER-429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ivan Kelly updated BOOKKEEPER-429:
----------------------------------
Attachment: 0001-BOOKKEEPER-429-Provide-separate-read-and-write-threa.patch
Rebased and added apache license to MultipleThreadReadTest.
This patch looks ready to go, so +1 from me. Merge it when you've glanced over
the rebase. There's no real change. It only needed a rebase because of shuffled
imports, which highlights why they shouldn't be shuffled unnecessarily, no
matter how ugly they are.
> Provide separate read and write threads in the bookkeeper server
> ----------------------------------------------------------------
>
> Key: BOOKKEEPER-429
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-429
> Project: Bookkeeper
> Issue Type: Improvement
> Components: bookkeeper-server
> Affects Versions: 4.2.0
> Reporter: Aniruddha
> Assignee: Aniruddha
> Fix For: 4.3.0
>
> Attachments:
> 0001-BOOKKEEPER-429-Provide-separate-read-and-write-threa.patch,
> 0001-BOOKKEEPER-429-Provide-separate-read-and-write-threa.patch,
> BK-429.patch, BOOKKEEPER-429.diff, BOOKKEEPER-429.diff, BOOKKEEPER-429.diff
>
>
> The current bookkeeper server is single threaded. The same thread handles
> reads and writes. When reads are slow (possibly because of excessive seeks),
> add entry operations suffer in terms of latencies. Providing separate read
> and write threads helps in reducing add entry latencies and increasing
> throughput even when we're facing slow reads. Having a single read thread
> also results in low disk utilization because seeks can't be ordered
> efficiently by the OS. Multiple read threads would help in improving the read
> throughput.
> Discussion on this can be found at
> http://mail-archives.apache.org/mod_mbox/zookeeper-bookkeeper-dev/201209.mbox/%3ccaolhydqpzn-v10zynfwud_h0qzrxtmjgttx7a9eofohyyty...@mail.gmail.com%3e
> Reviewboard : https://reviews.apache.org/r/7560/
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
