Thanks Joe.. I am now following ya.. Appreciate that..


On Tue, Jan 26, 2010 at 1:53 PM, Joe D'Souza <jdso...@shyle.net> wrote:

> **
> I did hear what you suggest too, that keeping the initial and max memory
> the same is a good idea, but I heard that in a very different context. The
> performance context is new to me.
>
> From what I had heard, earlier builds of tomcat 5.5.x had a problem wherein
> keeping these settings different would cause memory issues which would crash
> the server (I think a memory leak caused that). But these issues I heard
> have long been resolved. I used different settings on 5.5.25 and 5.5.26 with
> no issues.
>
> Joe
>
>  -----Original Message-----
> *From:* Action Request System discussion list(ARSList) [mailto:
> arsl...@arslist.org]*on Behalf Of *patrick zandi
> *Sent:* Tuesday, January 26, 2010 1:42 PM
> *To:* arslist@ARSLIST.ORG
>  *Subject:* Re: How to increase java.lang.OutOfMemoryError: Java heap
> space
>
>  **
> Joe,
> Let me ask it this way: the min and max according to the apache setting
> should be the same which keep performance to the max. Preventing of the
> sizing/re-sizing is a Performance hit as well. So is there new guidance out
> that they are recommending a differing of min and max now?
> and if so where?
>
> On Tue, Jan 26, 2010 at 1:15 PM, Pat Zandi <remedy...@gmail.com> wrote:
>
>>  Question; you are using different settings? Apache performance guide
>> says keep them the same?  Has this changed? Just asking to stay up on
>> configs.   Thanks
>>
>> Sent from my iPhone
>>
>> On Jan 26, 2010, at 12:58 PM, Joe D'Souza <jdso...@shyle.net> wrote:
>>
>>  **
>> Sean,
>>
>> From your installation path of tomcat I can see you are running tomcat
>> version 5.5.28. For this version the parameter that you need to reset in the
>> tomcat startup file in the bin directory is CATALINA_OPT..
>>
>> Open the startup file. Set the above parameter to " -Xmx<max memory>m
>> -Xms<min initial>m"
>>
>> Calculate max memory to be less than 70% of the total available free
>> memory on your server before the start of tomcat.. The minimum initial
>> memory can safely be set at half the max memory calculated.
>>
>> You might also want to set incremental garbage collection by -Xincgc. This
>> also would help in your performance and reduce out of memory errors by
>> removing from memory least used portions of java memory.
>>
>> So lets say you calculate your max memory to be 2048 and minimum initial
>> to be 1024, you will have
>>
>> CATALINA_OPT=" -Xmx2048m -Xms1024m -Xincgc"
>>
>> Stop and start tomcat for these changes to take effect.
>>
>> Hope this helps..
>>
>> Joe
>>
>> -----Original Message-----
>> *From:* Action Request System discussion list(ARSList) [mailto:
>> arsl...@arslist.org]*on Behalf Of *Sean Harrodine
>> *Sent:* Tuesday, January 26, 2010 11:27 AM
>> *To:* arslist@ARSLIST.ORG
>> *Subject:* How to increase java.lang.OutOfMemoryError: Java heap space
>>
>> **
>> Hi all,
>>
>> We are running apache tomcat 5.5.28 on our Linux midtier server and are
>> seeing the following errors..........
>>
>> # ps -ef|grep java
>> root      8620     1  0 16:10 pts/0    00:00:09
>> /opt/jdk1.6.0_16/jre/bin/java
>> -Djava.util.logging.config.file=/usr/apache-tomcat-5.5.28/conf/logging.properties
>> -Xmx256m -Xms256m
>> -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
>> -Djava.endorsed.dirs=/usr/apache-tomcat-5.5.28/common/endorsed -classpath
>> /usr/apache-tomcat-5.5.28/bin/bootstrap.jar
>> -Dcatalina.base=/usr/apache-tomcat-5.5.28
>> -Dcatalina.home=/usr/apache-tomcat-5.5.28
>> -Djava.io.tmpdir=/usr/apache-tomcat-5.5.28/temp
>> org.apache.catalina.startup.Bootstrap start
>>
>>
>> java.lang.OutOfMemoryError: Java heap space
>>        java.util.TreeMap.put(TreeMap.java:554)
>>
>>  com.bmc.arsys.api.RpcConverter.fromRpcArPropListToDisplayPropertyMap(Unknown
>> Source)
>>
>>  com.bmc.arsys.api.RpcHandConverter..fromRpcArDisplayInstanceList(Unknown
>> Source)
>>
>>  com.bmc.arsys.api.RpcHandConverter.fromRpcArGetMultipleFields14Out(Unknown
>> Source)
>>        com.bmc.arsys.api.ProxyJRpc.ARGetMultipleFields(Unknown Source)
>>        com.bmc.arsys.api.ARServerUser.getListFieldObjects(Unknown Source)
>>        com.remedy.arsys.goat.CachedFieldMapInternal.<init>(Unknown Source)
>>        com.remedy.arsys.goat.Form.getCachedFieldMap(Unknown Source)
>>        com.remedy.arsys.goat.Form.getCachedFieldMap(Unknown Source)
>>        com.remedy.arsys.goat.action.ActionOpenDialog.<init>(Unknown
>> Source)
>>        com.remedy.arsys.goat.action.ActionList.compileAction(Unknown
>> Source)
>>        com.remedy.arsys.goat.action.ActionList.<init>(Unknown Source)
>>        com.remedy.arsys.goat.ActiveLink.<init>(Unknown Source)
>>        com.remedy.arsys.goat.ActiveLink.bulkLoad(Unknown Source)
>>        com.remedy.arsys.goat.ActiveLinkCollector.<init>(Unknown Source)
>>        com.remedy.arsys.goat.field.FieldGraph.instantiateFields(Unknown
>> Source)
>>        com.remedy.arsys.goat.field.FieldGraph.getHTMLData(Unknown Source)
>>        com.remedy.arsys.goat.field.FieldGraph.transmitHTML(Unknown Source)
>>        com.remedy.arsys.stubs.FormServlet.requestDispatch(Unknown Source)
>>        com..remedy.arsys.stubs.FormServlet.doRequest(Unknown Source)
>>        com.remedy.arsys.stubs.GoatServlet.postInternal(Unknown Source)
>>        com.remedy.arsys.stubs.GoatHttpServlet.doGet(Unknown Source)
>>        javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
>>        javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
>>
>>
>> Can anyone point me in the right direct as to where and how we can
>> increase it please ??
>>
>> TIA...as always !
>>
>> Sean
>>
>> _Platinum Sponsor: rmisoluti...@verizon.net ARSlist: "Where the Answers
>> Are"_
>>
>>
>
>
> --
> Patrick Zandi
> _Platinum Sponsor: rmisoluti...@verizon.net ARSlist: "Where the Answers
> Are"_
>
>  _Platinum Sponsor: rmisoluti...@verizon.net ARSlist: "Where the Answers
> Are"_
>



-- 
Patrick Zandi

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