Re: [thredds] TDS 4.5 Heap issues

  • To: "Walker, Jordan" <jiwalker@xxxxxxxx>
  • Subject: Re: [thredds] TDS 4.5 Heap issues
  • From: Christian Ward-Garrison <cwardgar@xxxxxxxx>
  • Date: Thu, 26 Feb 2015 09:30:05 -0700
Yep, will do.

On Thu, Feb 26, 2015 at 9:17 AM, Walker, Jordan <jiwalker@xxxxxxxx> wrote:

> It does seem to have something to do with the MemTracker, so that likely
> would fix it.  Could you let me know if it makes it into a 4.5 release?
>
> --
> Jordan Walker
> Center for Integrated Data Analytics
> US Geological Survey
> 8505 Research Way
> Middleton, WI 53562
> 608.821.3842
> http://cida.usgs.gov
>
> On Wed, Feb 25, 2015 at 6:10 PM, Christian Ward-Garrison <
> cwardgar@xxxxxxxx> wrote:
>
>> Hi Jordan,
>>
>> I haven't investigated this specific issue, but I suspect it's related to
>> this: https://github.com/Unidata/thredds/issues/97
>>
>> If so, it's been fixed in the development branch, 4.6.0. We may apply it
>> to 4.5 as well.
>>
>> Cheers,
>> Christian
>>
>> On Wed, Feb 25, 2015 at 3:52 PM, Walker, Jordan <jiwalker@xxxxxxxx>
>> wrote:
>>
>>> We are seeing something on TDS 4.5 that hadn't been occurring on 4.3.
>>> Our heap is set to 4GB, but with somewhat heavy use this is filling up very
>>> fast (several hours) and causing out of memory errors.  Looking briefly at
>>> some heapdumps.  It appears that the issue is some hdf5 headers that are
>>> sticking around in the heap and not being cleaned up.  Specifically there
>>> are about 5,500,000 char[] that are around 500 bytes each.
>>>
>>> Is it possible that I have a misconfiguration that is causing this to
>>> occur?  Otherwise, what else might I provide that will help diagnose this
>>> problem?
>>>
>>> --
>>> Jordan Walker
>>> Center for Integrated Data Analytics
>>> US Geological Survey
>>> 8505 Research Way
>>> Middleton, WI 53562
>>> 608.821.3842
>>> http://cida.usgs.gov
>>>
>>> _______________________________________________
>>> thredds mailing list
>>> thredds@xxxxxxxxxxxxxxxx
>>> For list information or to unsubscribe,  visit:
>>> http://www.unidata.ucar.edu/mailing_lists/
>>>
>>
>>
>
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