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From "Pavan Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GIRAPH-821) proper handling of NegativeArraySizeException for all ByteArray backed messagestores
Date Tue, 07 Jan 2014 20:05:51 GMT

     [ https://issues.apache.org/jira/browse/GIRAPH-821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavan Kumar updated GIRAPH-821:
-------------------------------

    Attachment: Testing.patch

These changes can be applied on top of the giraph-821 patch, to be able to verify that it
works. [caution: this patch does not conform to check style of giraph]

this can be used to verify the patch works. indeed that is how I tested it.
mvn -Dcheckstyle.skip=true -Dtest=TestLongByteArrayMessageVerboseException test

>  proper handling of NegativeArraySizeException for all ByteArray backed messagestores
> -------------------------------------------------------------------------------------
>
>                 Key: GIRAPH-821
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-821
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Pavan Kumar
>            Assignee: Pavan Kumar
>            Priority: Minor
>              Labels: giraph
>         Attachments: GIRAPH-821.patch, Testing.patch
>
>
> For byte array backed message stores (i.e.     LongByteArrayMessageStore, ByteArrayMessagesPerVertexMessageStore,
and IntByteArrayMessageStore)     currently, when the byte[] of underlying ExtendedDataOuput
runs out of space (i.e. UnsafeByteArrayOutputStream)     we see java.lang.NegativeArraySizeException
in the SendWorkerMessagesRequest.     We want to catch the exception dump the known vertex
information and explain the issue     (the amount of bytes sent to this vertex exceeded the
max capacity of this ExtendedDataOutput).      In this diff all ByteArray backed messagestores
have been modified to behave as explained.



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