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https://issues.apache.org/jira/browse/CASSANDRA-13621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16060186#comment-16060186
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Michael Shuler commented on CASSANDRA-13621:
--------------------------------------------

You listed 3.0.14 in fix version (which is set to specific version on patch 
commits), which has not even been released as of writing. What version of 
Cassandra was this from? Can you provide any additional details about how you 
arrived in this state, for instance commands that were run, changes to or 
errors on other servers, etc.?

Without much to go on to reproduce your error, this will likely get closed as 
unreproducible. Thanks!

> i am seeing outof memory issue in cassandra
> -------------------------------------------
>
>                 Key: CASSANDRA-13621
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13621
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Centos 6.7,
>            Reporter: Nanda Kishore Tokala
>             Fix For: 3.0.x
>
>
> {noformat}
> ERROR [SharedPool-Worker-11] 2017-06-14 17:39:21,929  Message.java:617 - 
> Unexpected exception during request; channel = [id: 0x4c3897de, ]
> java.lang.OutOfMemoryError: Direct buffer memory
>         at java.nio.Bits.reserveMemory(Bits.java:693) ~[na:1.8.0_121]
>         at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123) 
> ~[na:1.8.0_121]
>         at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) 
> ~[na:1.8.0_121]
>         at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:645) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:229) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at io.netty.buffer.PoolArena.allocate(PoolArena.java:213) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at io.netty.buffer.PoolArena.allocate(PoolArena.java:133) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at 
> io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:271)
>  ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at 
> io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:177)
>  ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at 
> io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:168)
>  ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at 
> io.netty.buffer.AbstractByteBufAllocator.buffer(AbstractByteBufAllocator.java:105)
>  ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at io.netty.handler.ssl.SslHandler.allocate(SslHandler.java:1470) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at 
> io.netty.handler.ssl.SslHandler.allocateOutNetBuf(SslHandler.java:1480) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at io.netty.handler.ssl.SslHandler.wrap(SslHandler.java:528) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final]
>         at io.netty.handler.ssl.SslHandler.flush(SslHandler.java:507) 
> ~[netty-all-4.0.34.Final.jar:4.0.34.Final
> {noformat}



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