Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop >> mail # dev >> Possible Length issue

Copy link to this message
Re: Possible Length issue
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