Thank you both, Bill and Reth!
Here is my current options from my command to launch java:
*/usr/bin/java -Xms20480m -Xmx40960m -XX:PermSize=10240m
-XX:MaxPermSize=20480m [...]*
So should I do *-Xms20480m -Xmx20480m* ?
Why? What would it change?
Reminder: the size of my main index is 46Gb... (80Gb all together)
BTW: what's the difference between dark and light grey in the JVM
representation? (real/virtual memory?)
NOTE: I have only tomcat running on this server (and this is my live
website - /i.e.: quite critical/).
So if document cache is using the OS cache, this might be the problem,
right?
(because it seems to cache every field ==> so all the data returned by
the query)
kr,
Bast
On 12/04/2016 08:19, Reth RM wrote:
As per solr admin dashboard's memory report, solr jvm is not using memory
more than 20 gb, where as physical memory is almost full. I'd set
xms=xmx=16 gb and let operating system use rest. And regarding caches:
filter cache hit ratio looks good so it should not be concern. And afaik,
document cache actually uses OS cache. Overall, I'd reduce memory allocated
to jvm as said above and try.
On Mon, Apr 11, 2016 at 7:40 PM, <billnb...@gmail.com> wrote:
You do need to optimize to get rid of the deleted docs probably...
That is a lot of deleted docs
Bill Bell
Sent from mobile
On Apr 11, 2016, at 7:39 AM, Bastien Latard - MDPI AG
<lat...@mdpi.com.INVALID> wrote:
Dear Solr experts :),
I read this very interesting post 'Understanding and tuning your Solr
caches' !
This is the only good document that I was able to find after searching
for 1 day!
I was using Solr for 2 years without knowing in details what it was
caching...(because I did not need to understand it before).
I had to take a look since I needed to restart (regularly) my tomcat in
order to improve performances...
But I now have 2 questions:
1) How can I know how much RAM is my solr using in real (especially for
caching)?
2) Could you have a quick look into the following images and tell me if
I'm doing something wrong?
Note: my index contains 66 millions of articles with several text fields
stored.
<mime-attachment.png>
My solr contains several cores (all together are ~80Gb big), but almost
only the one below is used.
I have the feeling that a lot of data is always stored in RAM...and
getting bigger and bigger all the time...
<mime-attachment.png>
<mime-attachment.png>
(after restart)
$ sudo tail -f /var/log/tomcat7/catalina.out | grep GC
<mime-attachment.png>
[...] after a few minutes
<mime-attachment.png>
Here are some images, that can show you some stats about my Solr
performances...
<mime-attachment.png>
<mime-attachment.png>
<mime-attachment.png>
<mime-attachment.png>
Kind regards,
Bastien Latard
Kind regards,
Bastien Latard
Web engineer
--
MDPI AG
Postfach, CH-4005 Basel, Switzerland
Office: Klybeckstrasse 64, CH-4057
Tel. +41 61 683 77 35
Fax: +41 61 302 89 18
E-mail:
lat...@mdpi.com
http://www.mdpi.com/
