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Posted to dev@kafka.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/05/23 16:55:12 UTC

[jira] [Commented] (KAFKA-3747) Close `RecordBatch.records` when append to batch fails

    [ https://issues.apache.org/jira/browse/KAFKA-3747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15296641#comment-15296641 ] 

ASF GitHub Bot commented on KAFKA-3747:
---------------------------------------

GitHub user ijuma opened a pull request:

    https://github.com/apache/kafka/pull/1418

    KAFKA-3747; Close `RecordBatch.records` when append to batch fails

    With this change, `test_producer_throughput` with message_size=10000, compression_type=snappy and a snappy buffer size of 32k can be executed in a heap of 192m in a local environment (768m is needed without this change).

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/ijuma/kafka kafka-3747-close-record-batch-when-append-fails

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/kafka/pull/1418.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1418
    
----
commit 40b9076efc4f284bc0af2a83cb7754adc26ee362
Author: Ismael Juma <is...@juma.me.uk>
Date:   2016-05-23T16:26:15Z

    Close `RecordBatch` if `tryAppend` fails

commit cb495aaea03778dda1a579a399ce0bf85c03ecfa
Author: Ismael Juma <is...@juma.me.uk>
Date:   2016-05-23T16:27:56Z

    Use diamond operator in `RecordAccumulator` and prefer `Deque.isEmpty` over `size`

----


> Close `RecordBatch.records` when append to batch fails
> ------------------------------------------------------
>
>                 Key: KAFKA-3747
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3747
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: Ismael Juma
>            Assignee: Ismael Juma
>             Fix For: 0.10.0.1
>
>
> We should close the existing `RecordBatch.records` when we create a new `RecordBatch` for the `TopicPartition`.
> This would mean that we would only retain temporary resources like compression stream buffers for one `RecordBatch` per partition, which can have a significant impact when producers are dealing with slow brokers, see KAFKA-3704 for more details.



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