Tryed 0.10.10 on fontello.com. Symptoms are the same:

- works several minutes
- starts use CPU 50-100% and leak memory
- when reach 1.5gb RES - crashes

lsof -a -p <pid> doesn't show anything special (the same descriptors count)

After roll back to 0.8, everything works without problems.

Modules are the same. The only difference, i know, is that module 
`log2js-node` uses readable-stream for 0.8, and native streams for 0.10

Does anyone have idea, what to do? I'm fine with 0.8, but it will reash end 
of life sometime...

среда, 5 июня 2013 г., 3:47:43 UTC+4 пользователь Vitaly Puzrin написал:
>
> Thanks for info. I had this problem in production, and had to roll back to 
> 0.8.
>
> Symptoms were very similar - process works some time, and then starts 
> eating 100% of CPU. The only difference was in node-log2js module, they 
> started to use streams for writing files. Process has 50К files limit
>
> Will check, if 10.7+ helps.
>
> вторник, 28 мая 2013 г., 16:07:26 UTC+4 пользователь Bert Belder написал:
>>
>> On Tuesday, May 28, 2013 8:17:09 AM UTC+2, Qasim Zaidi wrote:
>>
>>> Ever since we switched to 0.10.x in production, we are seeing instances 
>>> where the server gets into a loop and CPU usage shoots to 100%. Here is 
>>> what I have been able to understand so far about this situation.
>>>
>>> - After some time, we run out of descriptors, i.e. the nofile limit is 
>>> reached. This triggers the 100% CPU loop, and node becomes unresponsive.
>>>
>>
>> What node version is this? This was supposedly fixed in libuv-v0.10.6. To 
>> benefit from the fix you need to use node-v0.10.7 or later.
>>
>> Something (maybe traffic spike) triggers a socket leak in the process, 
>>> and we start with getting a lot of descriptors in close_wait state.  This 
>>> is very similar to what is reported at 
>>> https://github.com/einaros/ws/issues/180 (Connections stay in 
>>> CLOSE_WAIT with Node 0.10.x). 
>>
>>
>> Do the CLOSE_WAIT connections show up before or after node hits 100% CPU 
>> usage? A socket in CLOSE_WAIT state means that the connection was 
>> completely wound down, but the file descriptor hasn't been closed. If a 
>> small fraction of sockets is in CLOSE_WAIT state there's nothing to worry 
>> about, node just hasn't gotten around to closing the file descriptor yet. 
>> It is also "expected" when the 100%-cpu issue kicks in since node basically 
>> hangs and won't be closing any FDs at all.
>>
>> - Bert
>>
>

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