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From Zheng Lin Edwin Yeo <>
Subject Re: Indexing in one collection affect index in another collection
Date Fri, 08 Feb 2019 15:53:50 GMT
Hi Shawn,

Thanks for your reply.

Although the space in the OS disk cache could be the issue, but we didn't
face this problem previously, especially in our other setup using Solr
6.5.1, which contains much more data (more than 1 TB), as compared to our
current setup in Solr 7.6.0, in which the data size is only 20 GB.


On Wed, 6 Feb 2019 at 23:52, Shawn Heisey <> wrote:

> On 2/6/2019 7:58 AM, Zheng Lin Edwin Yeo wrote:
> > Hi everyone,
> >
> > Does anyone has further updates on this issue?
> It is my strong belief that all the software running on this server
> OTHER than Solr is competing with Solr for space in the OS disk cache,
> and that Solr's data is getting pushed out of that cache.
> Best guess is that with only one collection, the disk cache was able to
> hold onto Solr's data better, and that with another collection present,
> there's not enough disk cache space available to cache both of them
> effectively.
> I think you're going to need a dedicated machine for Solr, so Solr isn't
> competing for system resources.
> Thanks,
> Shawn

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