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From Michael Kuhlmann <k...@solr.info>
Subject Re: Continual garbage collection loop
Date Wed, 15 Feb 2017 08:04:50 GMT
The number of cores is not *that much* important compared to the index
size, but each core has its memory overhead. For instance, caches are
based on cores, so you're having 36 individual caches per type.

Best,
Michael

Am 14.02.2017 um 16:39 schrieb Leon STRINGER:
>>     On 14 February 2017 at 14:44 Michael Kuhlmann <kuli@solr.info> wrote:
>>
>>
>>     Wow, running 36 cores with only half a gigabyte of heap memory is
>>     *really* optimistic!
>>
>>     I'd raise the heap size to some gigabytes at least and see how it's
>>     working then.
>>
> I'll try increasing the heap size and see if I get the problem again.
>
> Is core quantity a big issue? As opposed to the size of the cores? Yes, there's
> 36 but some relate to largely inactive web sites so the average size (assuming
> my "Master (Searching)" way of calculating this is correct) is less than 4 MB. I
> naively assumed a heap size-related issue would result from larger data sets.
>
> Thanks for your recommendation,
>
> Leon Stringer
>


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