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https://issues.apache.org/jira/browse/KAFKA-1670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14168308#comment-14168308
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Sriharsha Chintalapani commented on KAFKA-1670:
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[~guozhang] log.segment.bytes on systems is set to 10240 and producer's message
batch size bigger than that causing the failures.
changed the configs to 20580. ran systems tests
========================================================
Total failures count : 0
========================================================
[~junrao] rethinking a bit , should we enforce producer's message batch size
less than config segment.size?
instead on Log side if the current message batch size is greater than config
segment.size broker should push as many messages can fit into the current
segment and roll the log for the rest of messages in the batch.
> Corrupt log files for segment.bytes values close to Int.MaxInt
> --------------------------------------------------------------
>
> Key: KAFKA-1670
> URL: https://issues.apache.org/jira/browse/KAFKA-1670
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8.1.1
> Reporter: Ryan Berdeen
> Assignee: Sriharsha Chintalapani
> Priority: Blocker
> Fix For: 0.8.2
>
> Attachments: KAFKA-1670.patch, KAFKA-1670.patch,
> KAFKA-1670_2014-10-04_20:17:46.patch, KAFKA-1670_2014-10-06_09:48:25.patch,
> KAFKA-1670_2014-10-07_13:39:13.patch, KAFKA-1670_2014-10-07_13:49:10.patch,
> KAFKA-1670_2014-10-07_18:39:31.patch
>
>
> The maximum value for the topic-level config {{segment.bytes}} is
> {{Int.MaxInt}} (2147483647). *Using this value causes brokers to corrupt
> their log files, leaving them unreadable.*
> We set {{segment.bytes}} to {{2122317824}} which is well below the maximum.
> One by one, the ISR of all partitions shrunk to 1. Brokers would crash when
> restarted, attempting to read from a negative offset in a log file. After
> discovering that many segment files had grown to 4GB or more, we were forced
> to shut down our *entire production Kafka cluster* for several hours while we
> split all segment files into 1GB chunks.
> Looking into the {{kafka.log}} code, the {{segment.bytes}} parameter is used
> inconsistently. It is treated as a *soft* maximum for the size of the segment
> file
> (https://github.com/apache/kafka/blob/0.8.1.1/core/src/main/scala/kafka/log/LogConfig.scala#L26)
> with logs rolled only after
> (https://github.com/apache/kafka/blob/0.8.1.1/core/src/main/scala/kafka/log/Log.scala#L246)
> they exceed this value. However, much of the code that deals with log files
> uses *ints* to store the size of the file and the position in the file.
> Overflow of these ints leads the broker to append to the segments
> indefinitely, and to fail to read these segments for consuming or recovery.
> This is trivial to reproduce:
> {code}
> $ bin/kafka-topics.sh --topic segment-bytes-test --create
> --replication-factor 2 --partitions 1 --zookeeper zkhost:2181
> $ bin/kafka-topics.sh --topic segment-bytes-test --alter --config
> segment.bytes=2147483647 --zookeeper zkhost:2181
> $ yes "Int.MaxValue is a ridiculous bound on file size in 2014" |
> bin/kafka-console-producer.sh --broker-list localhost:6667 zkhost:2181
> --topic segment-bytes-test
> {code}
> After running for a few minutes, the log file is corrupt:
> {code}
> $ ls -lh data/segment-bytes-test-0/
> total 9.7G
> -rw-r--r-- 1 root root 10M Oct 3 19:39 00000000000000000000.index
> -rw-r--r-- 1 root root 9.7G Oct 3 19:39 00000000000000000000.log
> {code}
> We recovered the data from the log files using a simple Python script:
> https://gist.github.com/also/9f823d9eb9dc0a410796
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