[
https://issues.apache.org/jira/browse/KAFKA-1303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13958024#comment-13958024
]
Jun Rao commented on KAFKA-1303:
--------------------------------
Created reviewboard https://reviews.apache.org/r/19953/
against branch origin/trunk
> metadata request in the new producer can be delayed
> ---------------------------------------------------
>
> Key: KAFKA-1303
> URL: https://issues.apache.org/jira/browse/KAFKA-1303
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 0.8.2
> Reporter: Jun Rao
> Attachments: KAFKA-1303.patch
>
>
> While debugging a system test, I observed the following.
> 1. A broker side configuration
> (replica.fetch.wait.max.ms=500,replica.fetch.min.bytes=4096) made the time to
> complete a produce request long (each taking about 500ms with ack=-1).
> 2. The producer client has a bunch of outstanding produce requests queued up
> on the brokers.
> 3. One of the brokers fails and we force updating the metadata.
> 4. The metadata request is queued up behind those outstanding producer
> requests.
> 5. By the time the metadata response comes back, some messages have failed
> all retries because of stale metadata.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
