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Hadoop >> mail # dev >> Possible Length issue


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Re: Possible Length issue
Can you please share the details on the issue you found?

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> On Dec 29, 2013, at 1:04 PM, Dhaivat Pandya <[EMAIL PROTECTED]> wrote:
>
> Actually, we can relegate this as a non-issue; I have found a different
> source of error in the system.
>
>
> On Sun, Dec 29, 2013 at 3:03 PM, Dhaivat Pandya <[EMAIL PROTECTED]>wrote:
>
>> Anyone?
>>
>>
>> On Sat, Dec 28, 2013 at 1:06 PM, Dhaivat Pandya <[EMAIL PROTECTED]>wrote:
>>
>>> Hi,
>>>
>>> I've been working a lot with the Hadoop NameNode IPC protocol (while
>>> building a cache layer on top of Hadoop). I've noticed that for request
>>> packets coming from the default DFS client that do not have a method name,
>>> the length field is often *completely *off.
>>>
>>> For example, I've been looking at packets with length 1752330339. I
>>> thought this might have been an issue with my cache layer, so I checked
>>> with Wireshark, and found packets with such absurd length parameters
>>> (obviously, the packets themselves weren't actually that long; the length
>>> field was misrepresented).
>>>
>>> Unfortunately, I haven't had the opportunity to test this issue on other
>>> machines and setups (the reproducing steps should be running an "ls /" with
>>> the default DFS client and sniffing the packets to find the length
>>> parameter, release 1.2.1).
>>>
>>> Is this normal behavior, a bug or something I'm missing?
>>>
>>> Thank you,
>>>
>>> Dhaivat
>>>
>>
>>

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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB