Jun Rao created KAFKA-1303:
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Summary: 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
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.
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