This is a progress update on the issue:
I have tried several things and they all gave improvements. In order of
magnitude they are
1) Reduced heap space from 6GB to 3GB.
This on it's own has so far been the biggest win as swapping almost completely
stopped after this step.
2) Began limiting t
Thanks everyone. Looks like I have lots of reading to do :-)
-Original Message-
From: Nader, John P
To: java-user@lucene.apache.org
Sent: Wed, 16 May 2012 16:27
Subject: Re: Memory question
Another good link is
http://www.oracle.com/technetwork/java/javase/gc-tuning-6-140523
Lutz
>
>-Original Message-
>From: Chris Bamford [mailto:chris.bamf...@talktalk.net]
>Sent: Dienstag, 15. Mai 2012 16:38
>To: java-user@lucene.apache.org
>Subject: Re: Memory question
>
>
> Hi John,
>
>Very interesting, thanks for the detailed explanation. It certainl
java-user@lucene.apache.org
Sent: Tue, 15 May 2012 18:10
Subject: RE: Memory question
It mmaps the files into virtual memory if it runs on a 64 bit JVM. Because
of that you see the mmapped CFS files. This is outside Java Heap and is all
*virtual* no RAM is explicitely occupied except the O/S
rs and then closes them based on how full
>>the heap is getting. My worry is that if the bulk of the memory is being
>>allocated outside the Jvm, how can I make sensible decisions?
>>
>>Thanks for any pointers / info.
>>
>>Chris
>>
>>
>>
>>---
Regards
Lutz
-Original Message-
From: Chris Bamford [mailto:chris.bamf...@talktalk.net]
Sent: Dienstag, 15. Mai 2012 16:38
To: java-user@lucene.apache.org
Subject: Re: Memory question
Hi John,
Very interesting, thanks for the detailed explanation. It certainly
sounds like the same
ar effect ?
Thanks again,
- Chris
-Original Message-
From: Nader, John P
To: java-user@lucene.apache.org
Sent: Tue, 15 May 2012 21:12
Subject: Re: Memory question
We've encountered this issue and came up with a fairly good approach to
address it.
We are on Lucene 3.0.2 with Java 1.6.0
ual* no RAM is explicitely occupied except the O/S cache.
>
>-
>Uwe Schindler
>H.-H.-Meier-Allee 63, D-28213 Bremen
>http://www.thetaphi.de
>eMail: u...@thetaphi.de
>
>> -Original Message-
>> From: Chris Bamford [mailto:chris.bamf...@talktalk.net]
>> Se
om: u...@thetaphi.de
To: java-user@lucene.apache.org
Sent: Tue, 15 May 2012 18:10
Subject: RE: Memory question
It mmaps the files into virtual memory if it runs on a 64 bit JVM. Because
of that you see the mmapped CFS files. This is outside Java Heap and is all
*virtual* no RAM is explicitely occupied excep
eMail: u...@thetaphi.de
> -Original Message-
> From: Chris Bamford [mailto:chris.bamf...@talktalk.net]
> Sent: Tuesday, May 15, 2012 4:47 PM
> To: java-user@lucene.apache.org
> Subject: Memory question
>
> Hi
>
> Can anyone tell me what happens to the memory when
9:47
> To: java-user@lucene.apache.org
> Subject: Memory question
>
> Hi
>
> Can anyone tell me what happens to the memory when Lucene opens an
> index? Is it loaded into the JVM's heap or is it mapped into virtual
> memory outside of it?
> I am running on Linux a
2012 09:47
To: java-user@lucene.apache.org
Subject: Memory question
Hi
Can anyone tell me what happens to the memory when Lucene opens an
index? Is it loaded into the JVM's heap or is it mapped into virtual
memory outside of it?
I am running on Linux and if I use pmap on the PID of my JVM,
Hi
Can anyone tell me what happens to the memory when Lucene opens an index? Is
it loaded into the JVM's heap or is it mapped into virtual memory outside of it?
I am running on Linux and if I use pmap on the PID of my JVM, I can see lots of
entries for index cfs files.
Does this mean that inde
13 matches
Mail list logo
