GitHub user HenryCaiHaiying opened a pull request:
https://github.com/apache/kafka/pull/1563
KAFKA-3904: File descriptor leaking (Too many open files) for long ruâ¦
â¦nning stream process
I noticed when my application was running for more than one day, I will get
'Too many open files' error.
I used 'lsof' to list all the file descriptors used by the process, it's
over 32K, but most of them belongs to the .lock file, e.g. a single lock file
shows 2700 times.
I looked at the code, I think the problem is in:
FileChannel channel = new RandomAccessFile(lockFile, "rw").getChannel();
Each time new RandomAccessFile is called, a new fd will be created.
Fix this by caching the FileChannels we created so far.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HenryCaiHaiying/kafka fd
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/1563.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 #1563
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commit bb68fb8b820e4a0baef0c549ea1a4a8cfc913187
Author: Henry Cai <h...@pinterest.com>
Date: 2016-06-28T05:24:03Z
KAFKA-3904: File descriptor leaking (Too many open files) for long running
stream process
I noticed when my application was running for more than one day, I will get
'Too many open files' error.
I used 'lsof' to list all the file descriptors used by the process, it's
over 32K, but most of them belongs to the .lock file, e.g. a single lock file
shows 2700 times.
I looked at the code, I think the problem is in:
FileChannel channel = new RandomAccessFile(lockFile, "rw").getChannel();
Each time new RandomAccessFile is called, a new fd will be created.
Fix this by caching the FileChannels we created so far.
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