[GitHub] bputt opened a new issue #3402: OutOfDirectMemoryError

[GitBox <gi...@apache.org>]

bputt opened a new issue #3402: OutOfDirectMemoryError
URL: https://github.com/apache/pulsar/issues/3402
 
 
   **Describe the bug**
   We're using a proxy to connect to our pulsar cluster and the proxy was failing to send messages to our broker. The error on the broker is:
   
   ```
   WARN io.netty.channel.ChannelInitializer - Failed to initialize a channel. Closing: [id: .... ]
   io.netty.util.internal.OutOfDirectMemoryError: failed to allocated 866 byte(s) of direct memory (used: 4Gb, max: 4Gb)
   at io.netty.util.internal.PlatformDependent.incrementMemoryCounter(PlatformDependent.java:640)
   at io.netty.util.internal.PlatformDependent.allocatedDirectNoCleaner(PlatformDependent.java:594)
   ...
   ```
   
   **Expected behavior**
   I'd expect the proxy to send data to another broker, but I also don't see why this broker would have an OOM when it should be persisting to disk for the most part?
   
   **Desktop (please complete the following information):**
   CentOS 7.6
   Pulsar 2.2.1
   
   **Additional context**
   ```-Xms4g =X,x16g -XX:MaxDirectMemorySize=4g```
   

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