Thanks for the try, but it didn't helped. We have found a temporary hotfix, 
however the real issue seems to be a bug in the incremental gc itself.


Here is a full documentation of the issue 


https://github.com/LearnBoost/mongoose/issues/1565



Oleg Slobodskoi

twitter.com/oleg008
github.com/kof



Am 28.06.2013 um 16:00 schrieb Alexandru Vladutu <[email protected]>:

> Oleg I think this can solve your problems, it solved mine:
> 
> node --always-compact server.js
> 
> So run node with the always compact flag for v8 and the gc seems to be doing 
> its thing. Let me know if it worked.
> 
> Best,
> Alex
> 
> 
> On Fri, Jun 28, 2013 at 3:03 PM, Oleg Slobodskoi <[email protected]> 
> wrote:
> I have similar problems right now. We switched from node 0.8.25 to 0.10.12 
> and now servers consuming lots of memory. I could track this down db calls 
> using mongoose. Every time I call some url, memory usage increases 0.5-1 Mb 
> and remains on this level. The same happens on node 0.8.25, but the memory 
> usage goes very quickly down, within seconds. After I pumped the memory on 
> node 0.10.12 full, I was waiting about 30-60 minutes -  and then it was near 
> the start position again.
> 
> It looks for me like the reason is not the js code itself leaking variables, 
> because it should never go down in this case, but it looks like gc is not 
> doing his work as usual.
> 
> Its an urgent problem for me right now, any suggestions what to try would be 
> helpfull.
> 
> Best,
> Oleg
> 
> 
> On Tuesday, June 25, 2013 3:39:56 PM UTC+2, alessioalex wrote:
> Hello there,
> 
> I'm monitoring my app and I've seen my memory usage increase really oddly (it 
> did not decrease after X hours), so I suspected a leak. I've found out that 
> the memory seems to remain uncollected when using fs.readStream. I made a 
> small example with an http server that serving a 2mb file and did some ab 
> (apache benchmark) load testing on it (ab -n 5000 -c 100 a couple of times). 
> X minutes after the load testing is done, the memory idles at 480 Mb and 
> doesn't drop.
> 
> Am I missing something or is there really a problem with this?
> 
> index.js
> 
> var http   = require('http'),
>      bytes = require('bytes'), // npm install bytes
>      fs       = require('fs');                                                
>                                                        
>                                                                               
>                                     
> var fpath = '/path/to/a/2mb/file/in/my/case';
>                                                                               
>                                     
> http.createServer(function(req, res) {                                        
>                                     
>   fs.createReadStream(fpath).pipe(res);                                       
>                                     
> }).listen(7777);                                                              
>                                     
>                                                                               
>                                     
> var lastMem;                                                                  
>                                     
>                                                                               
>                                     
> function getMem(msg) {                                                        
>                                     
>   var memUsg;                                                                 
>                                     
>                                                                               
>                                     
>   msg = msg || '';                                                            
>                                     
>                                                                               
>                                     
>   memUsg = bytes(process.memoryUsage().rss);                                  
>                                     
>   if (lastMem !== memUsg) {                                                   
>                                     
>     lastMem = memUsg;                                                         
>                                     
>     console.log(msg + ' ' + memUsg);                                          
>                                     
>   }                                                                           
>                                     
> }                                                                             
>                                     
>                                                                               
>                                     
> setInterval(function() {                                                      
>                                     
>   getMem('rss:');                                                             
>                                        
> }, 5000);
> 
> Thanks!
> 
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