[jira] [Created] (QPIDJMS-543) Memory usage has increased significantly because the ByteBuffers are not released (netty)

["Rishabh Handa (Jira)" <ji...@apache.org>]

Rishabh Handa created QPIDJMS-543:
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             Summary: Memory usage has increased significantly because the ByteBuffers are not released (netty)
                 Key: QPIDJMS-543
                 URL: https://issues.apache.org/jira/browse/QPIDJMS-543
             Project: Qpid JMS
          Issue Type: Bug
          Components: qpid-jms-client
    Affects Versions: 0.56.0
         Environment: java - 11

qpid-jms-client - 0.56.0

netty - 4.1.65.Final
            Reporter: Rishabh Handa
         Attachments: 1.png, 2.png

* We are using JMS to send and receive messages from queue asynchronously
 * We have observed a high memory usage by *io.netty.buffer.PoolChunk* in the heap dump (screenshot attached 1)
 * These PoolChunks are allocated during creation of a connection to the queue - 
 ** From stacktrace(screenshot attached 2) - when we invoke getConnection() internally the call goes to FailoverProvider -> AmqpProvider, which internally invokes ByteBufferUtil to create PooledByteBuffer
 ** These buffers are created on the heap memory (io.netty.buffer.PoolChunk of *16 MB)*
 * These PooledByteBuffer are not released from the heap memory even after the connection is closed.

 

For more details -please go through this issue: [Increased memory footprint in 4.1.43.Final · Issue #9768 · netty/netty (github.com)|https://github.com/netty/netty/issues/9768]



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