You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@samza.apache.org by "Roger Hoover (JIRA)" <ji...@apache.org> on 2015/04/07 06:39:13 UTC
[jira] [Commented] (SAMZA-543) Disable WAL in RocksDB KV store
[ https://issues.apache.org/jira/browse/SAMZA-543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14482572#comment-14482572 ]
Roger Hoover commented on SAMZA-543:
------------------------------------
[~criccomini], thanks for sharing!
> Disable WAL in RocksDB KV store
> -------------------------------
>
> Key: SAMZA-543
> URL: https://issues.apache.org/jira/browse/SAMZA-543
> Project: Samza
> Issue Type: Bug
> Components: kv
> Affects Versions: 0.9.0
> Reporter: Chris Riccomini
> Assignee: Navina Ramesh
> Fix For: 0.9.0
>
> Attachments: 2015-04-06 RocksDB Performance.pdf, DisableWAL.diff, SAMZA-543-0.patch, SAMZA-543-2.patch
>
>
> RocksDB uses a write-ahead log by default. This is unnecessary in Samza, since we have full durability from a state store's changelog topic. We should [disable the WAL|https://github.com/facebook/rocksdb/wiki/Basic-Operations#asynchronous-writes] in the RocksDB KV store.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)