Fwd: 90% of physical memory being used up

[Reej Nayagam <re...@gmail.com>]

Hi All,

Need your help in this.

The physical memory being used up in servers where solr nodes and zk are
installed .
At times the free space goes to 0 MB and slowly frees up some 100 MB
Using the  windows resource monitor when we monitor, if we bring down zk
alone more than 40% of memory is released.

Zk - 3.6.3 and Solr 8.8.2

Has anyone faced issues like this ?


*Thanks,*
*Reej*

Re: Fwd: 90% of physical memory being used up

[Shawn Heisey <ap...@elyograg.org>]

On 2/11/22 02:14, Reej Nayagam wrote:
> The physical memory being used up in servers where solr nodes and zk are
> installed .
> At times the free space goes to 0 MB and slowly frees up some 100 MB
> Using the  windows resource monitor when we monitor, if we bring down zk
> alone more than 40% of memory is released.

Depending on exactly what you're dealing with, it can be completely 
normal for a system to show 0 or near 0 free memory. All modern 
operating systems use unallocated memory to cache data on disk.  If 
Available memory drops to zero, that's a problem. But Free memory can 
drop to zero even on a healthy system.

See if you can gather the screenshot described at the URL below:

https://cwiki.apache.org/confluence/display/SOLR/SolrPerformanceProblems#SolrPerformanceProblems-Askingforhelponamemory/performanceissue

Thanks,
Shawn