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Posted to dev@zookeeper.apache.org by "Benjamin Reed (JIRA)" <ji...@apache.org> on 2010/01/07 19:10:54 UTC

[jira] Created: (ZOOKEEPER-639) Performance improvements for ZooKeeper

Performance improvements for ZooKeeper
--------------------------------------

                 Key: ZOOKEEPER-639
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-639
             Project: Zookeeper
          Issue Type: Improvement
          Components: server
            Reporter: Benjamin Reed


here are some more improvements to Zab. the patch is a bit stale, but i don't want to lose track of it. there are two big improvements:

1) transaction logs are reused. this saves time over growing the log files and if you preallocate a bunch of log files on an empty partition, you will see a nice performance boost
2) acks and commits are always sent in order, so if there is a bunch to send, they will get merged into a single ack or commit.

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[jira] Updated: (ZOOKEEPER-639) Performance improvements for ZooKeeper

Posted by "Benjamin Reed (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/ZOOKEEPER-639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benjamin Reed updated ZOOKEEPER-639:
------------------------------------

    Attachment: ZOOKEEPER-639.patch

> Performance improvements for ZooKeeper
> --------------------------------------
>
>                 Key: ZOOKEEPER-639
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-639
>             Project: Zookeeper
>          Issue Type: Improvement
>          Components: server
>            Reporter: Benjamin Reed
>         Attachments: ZOOKEEPER-639.patch
>
>
> here are some more improvements to Zab. the patch is a bit stale, but i don't want to lose track of it. there are two big improvements:
> 1) transaction logs are reused. this saves time over growing the log files and if you preallocate a bunch of log files on an empty partition, you will see a nice performance boost
> 2) acks and commits are always sent in order, so if there is a bunch to send, they will get merged into a single ack or commit.

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