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From "Vishal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-1745) Each new thread creates a PIPE and KQUEUE as open files during producer.send() and does no0t get cleared when the thread that creates them is cleared.
Date Mon, 03 Nov 2014 09:28:33 GMT
Vishal created KAFKA-1745:
-----------------------------

             Summary: Each new thread creates a PIPE and KQUEUE as open files during producer.send()
and does no0t get cleared when the thread that creates them is cleared.
                 Key: KAFKA-1745
                 URL: https://issues.apache.org/jira/browse/KAFKA-1745
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.8.1.1
         Environment: Mac OS Mavericks
            Reporter: Vishal
            Priority: Critical


Hi,
    I'm using the java client API for Kafka. I wanted to send data to Kafka by using a producer
pool as I'm using a sync producer. The thread that sends the data is from the thread pool
that grows and shrinks depending on the usage. So, when I try to send data from one thread,
1 KQUEUE and 2 PIPES are created (got this info by using lsof). If I keep using the same thread
it's fine but when a new thread sends data to Kafka (using producer.send() ) a new KQUEUE
and 2 PIPEs are created.

This is okay, but when the thread is cleared from the thread pool and a new thread is created,
then new KQUEUEs and PIPEs are created. The problem is that the old ones which were created
are not getting destroyed and they are showing up as open files. This is causing a major problem
as the number of open file keep increasing and does not decrease.

Please suggest any solutions.



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