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Hadoop, mail # dev - Possible Length issue


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Re: Possible Length issue
Dhaivat Pandya 2013-12-29, 21:04
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
>>
>
>