You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@couchdb.apache.org by "Randall Leeds (JIRA)" <ji...@apache.org> on 2010/06/05 01:06:54 UTC
[jira] Updated: (COUCHDB-786) Make fewer gen_server calls to fsync
the db header
[ https://issues.apache.org/jira/browse/COUCHDB-786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Randall Leeds updated COUCHDB-786:
----------------------------------
Attachment: 0001-db-header-fsync-with-fewer-gen_server-calls.patch
> Make fewer gen_server calls to fsync the db header
> --------------------------------------------------
>
> Key: COUCHDB-786
> URL: https://issues.apache.org/jira/browse/COUCHDB-786
> Project: CouchDB
> Issue Type: Improvement
> Components: Database Core
> Affects Versions: 0.10.2, 0.11
> Reporter: Randall Leeds
> Fix For: 0.12
>
> Attachments: 0001-db-header-fsync-with-fewer-gen_server-calls.patch
>
>
> Currently the couch_db_updater process is responsible for calling couch_file:sync based on the fsync options when the db header is written. Instead, this patch just passes the fsync options down to couch_file so that writing the header can always be performed with a single gen_server call.
> Writes are serialized through couch_db_updater but reads can have high concurrency. This patch should boost write performance when the message queue on couch_file is long.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.