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Posted to commits@cassandra.apache.org by "Vijay (JIRA)" <ji...@apache.org> on 2012/08/24 02:57:42 UTC

[jira] [Commented] (CASSANDRA-4573) HSHA doesn't handle large messages gracefully

    [ https://issues.apache.org/jira/browse/CASSANDRA-4573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13440837#comment-13440837 ] 

Vijay commented on CASSANDRA-4573:
----------------------------------

{quote}
With debug logs enabled, you'll see this:
DEBUG 13:13:31,805 Unexpected state 16
{quote}
Unexpected state 16 means the intrest operation is accept. 
If you look at the code it is a while loop (the intrestOps can change between the if conditions) and will be handled in the next iteration.

{quote}
HSHA doesn't seem to enforce any kind of max message length
{quote}
neither does sync :) i can reproduce this error both in Sync and hsha, still trying to see where the timeout comes from though.
                
> HSHA doesn't handle large messages gracefully
> ---------------------------------------------
>
>                 Key: CASSANDRA-4573
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4573
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Tyler Hobbs
>            Assignee: Vijay
>         Attachments: repro.py
>
>
> HSHA doesn't seem to enforce any kind of max message length, and when messages are too large, it doesn't fail gracefully.
> With debug logs enabled, you'll see this:
> {{DEBUG 13:13:31,805 Unexpected state 16}}
> Which seems to mean that there's a SelectionKey that's valid, but isn't ready for reading, writing, or accepting.
> Client-side, you'll get this thrift error (while trying to read a frame as part of {{recv_batch_mutate}}):
> {{TTransportException: TSocket read 0 bytes}}

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