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From "John Vines (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-2360) Need a way to configure TNonblockingServer.maxReadBufferBytes to prevent OOMs from network misbehavour
Date Wed, 12 Feb 2014 19:01:21 GMT
John Vines created ACCUMULO-2360:
------------------------------------

             Summary: Need a way to configure TNonblockingServer.maxReadBufferBytes to prevent
OOMs from network misbehavour
                 Key: ACCUMULO-2360
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2360
             Project: Accumulo
          Issue Type: Bug
          Components: master, tserver
    Affects Versions: 1.5.0
            Reporter: John Vines
            Assignee: John Vines
            Priority: Critical
             Fix For: 1.5.1, 1.6.0


1.5.0 introduced GENERAL_MAX_MESSAGE_SIZE (ACCUMULO-1141), a parameter to set the maximum
frame size for the TFramedTransport. However, there is an underlying frame (I think this is
a glossary conflict) read in TNonblockingServer that can still cause OOM errors if erroneously
connected to (telnet, netcat, etc.), creating a stack trace as such

{code}2014-02-12 10:26:40,439 [util.TServerUtils$THsHaServer] ERROR: run() exiting due to
uncaught error
java.lang.OutOfMemoryError: Java heap space
        at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:57)
        at java.nio.ByteBuffer.allocate(ByteBuffer.java:329)
        at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.read(AbstractNonblockingServer.java:338)
        at org.apache.thrift.server.AbstractNonblockingServer$AbstractSelectThread.handleRead(AbstractNonblockingServer.java:202)
        at org.apache.thrift.server.TNonblockingServer$SelectAcceptThread.select(TNonblockingServer.java:198)
        at org.apache.thrift.server.TNonblockingServer$SelectAcceptThread.run(TNonblockingServer.java:154){code}

I believe if we set maxReadBufferBytes to the server arguments, it will filter appropriately.
The only decision I'm not sure about is if we should recycle the max message property or have
a separate one.



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