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From "Robert Gemmell (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Updated: (QPID-1653) add ability to dump queue/message content to a file via JMX
Date Tue, 17 Mar 2009 11:08:50 GMT

     [ https://issues.apache.org/jira/browse/QPID-1653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Robert Gemmell updated QPID-1653:

    Fix Version/s:     (was: Eclipse MC M5)

> add ability to dump queue/message content to a file via JMX
> -----------------------------------------------------------
>                 Key: QPID-1653
>                 URL: https://issues.apache.org/jira/browse/QPID-1653
>             Project: Qpid
>          Issue Type: New Feature
>          Components: Java Broker, Java Management : JMX Console
>            Reporter: Robert Gemmell
>            Priority: Minor
> It would be useful to be able to dump queue/message content to a file using the mangement
> Some initial discussion on the topic from partychat:
> (4:41:20 PM) Robbie: just considering the message/queue dump to file feature
> (4:41:53 PM) Robbie: i was wondering...any thoughts on the best approach for tackling
binary content ?
> (4:42:30 PM) Robbie: since it may or may not be mixed in with plain text messages
> (4:43:22 PM) Robbie: i think thinking maybe go with hex output..?
> (4:43:32 PM) Robbie: *was thinking
> (4:43:40 PM) partychat4@gmail.com: ["Martin"] binary file?
> (4:44:05 PM) Robbie: what about the text messages then ?:)
> (4:44:06 PM) partychat4@gmail.com: ["Martin"] The Messae/queue dump feature  was it to
be readable?
> (4:44:23 PM) Robbie: hmm, good point...i just asumed so
> <snip>
> (4:45:45 PM) partychat4@gmail.com: ["Martin"] Is it couple with a message/queue load?
> (4:45:52 PM) partychat4@gmail.com: ["Martin"] s/couple/coupled/
> (4:45:52 PM) partychat4@gmail.com: "Martin" meant Is it coupled with a message/queue
> (4:46:02 PM) Robbie: nope
> (4:46:20 PM) partychat4@gmail.com: ["aidan"] i would say leave the contents alone and
dump the bit stream. I might have a zip or something i want to get out of the message that
I don't want to de-hexify
> (4:46:24 PM) Robbie: i dot eall have any mroe background on it than what i just said
above hehe
> (4:46:44 PM) Robbie: *dont really
> (4:47:06 PM) partychat4@gmail.com: ["Martin"] I'd say dump like the MC viewer :  | ASCII
| HEX |
> (4:47:42 PM) Robbie: my original thoughts were to be putting out some of the header info,
then the contents.....lather, rinse and repeat
> (4:47:58 PM) partychat4@gmail.com: ["aidan"] the viewer is a somewhat different use case
> (4:48:13 PM) partychat4@gmail.com: ["Martin"] Take a look at the MessasgeStore Tool ...
it does some thing similar.. but only dumps to the screen
> (4:48:37 PM) Robbie: k
> (4:48:59 PM) partychat4@gmail.com: ["aidan"] yeah, see, in the case of the message store
tool I think the intention is to get something human-readable
> (4:49:08 PM) partychat4@gmail.com: ["aidan"] same as with view-message in the console
> (4:49:26 PM) partychat4@gmail.com: ["aidan"] but with dump to disk you might want to
do a number of things with the message
> (4:49:36 PM) partychat4@gmail.com: ["aidan"] that require the origional message contents
> (4:49:49 PM) partychat4@gmail.com: ["Martin"] but without a load it seems a bit odd
> (4:50:03 PM) partychat4@gmail.com: ["Martin"] I'd expect dump , fix issue, load
> (4:50:09 PM) Robbie: i think maybe we need a marnie:ping to decide futher :)
> (4:50:24 PM) Robbie: well, load isnt out of the question, it was jsut never mentioned
is all :)
> (4:50:24 PM) partychat4@gmail.com: ["aidan"] file a jira and attach this conversation
to it?
> (4:50:36 PM) partychat4@gmail.com: ["rob"] i'd not worry about load just yet
> (4:50:40 PM) Robbie: k
> (4:50:48 PM) partychat4@gmail.com: ["aidan"] load gets rather more messy
> (4:50:52 PM) partychat4@gmail.com: ["rob"] indeed
> <snip>
> (4:51:01 PM) partychat4@gmail.com: ["rob"] it breaks lots of important properties of
the model as well
> <snip>
> (4:51:30 PM) partychat4@gmail.com: ["aidan"] but I can see a use case of something like
"i need this humongous archive out of my queue so I can put it on an ftp server"
> <snip>
> (4:51:43 PM) partychat4@gmail.com: ["aidan"] and having to de-MIME it first would irritate
> (4:52:00 PM) Robbie: ;)
> (4:52:09 PM) partychat4@gmail.com: ["rob"] The most likely thing is going to be "this
message keeps breaking my application" "what's in the message" "I don't know - whenever I
try to get it it breaks my application"
> <snip>
> (4:52:52 PM) partychat4@gmail.com: ["aidan"] rob: indeed, and if the message is a bitstream
it should probably stay a bitstream
> <snip>
> (4:53:03 PM) partychat4@gmail.com: ["rob"] yes - you want to have the option
> (4:53:22 PM) partychat4@gmail.com: ["rob"] ideally we'd like to have a way to deserialize
the different java message types
> (4:53:32 PM) partychat4@gmail.com: ["rob"] you also want to get the headers - separate
from the file content
> (4:55:07 PM) Robbie: k

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