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<== Date ==> <== Thread ==>

Subject: Re: Problem with CSS archive engine
From: "Kasemir, Kay" <kasemirk@ornl.gov>
To: 龙巍 <longw@ihep.ac.cn>
Cc: "<tech-talk@aps.anl.gov>" <tech-talk@aps.anl.gov>
Date: Tue, 28 Oct 2014 13:37:45 +0000
Hi:

To fix your immediate problem, OutOfMemoryError, you can run the archive engine with more memory.
Use command-line options ending in
  ArchiveEngine -pluginCustomization ….. -vmargs -Xmx1024m
to pass suitable -Xm* options.

But a  waveform PV of 2048 points at 25Hz will lead to other problems.
This archive system is for long-term monitoring of the control system.
It's for monitoring temperatures, voltages etc. over days, months, storing them into one continuous archive.
It's not a data-aquisition system for capturing data that is fast but specific to one experiement.
Such data is usually captured by a data acquisition system for the duration of one experiment, then saved to a set of files, and users take those files home.

While the generic archive can save waveforms, there's currently no good tool to view the waveforms. One reason is that a waveform usually lacks information:
What is the "X" axis of the waveform data??

Thanks,
Kay

On Oct 21, 2014, at 10:39 PM, 龙巍 <longw@ihep.ac.cn>
 wrote:

> Now the IOC time is synchronized with the NTP server and works well. But there is still the problem.
> Here is the message(by the way: The waveform PV has 2048 points (double value), and the updating frequence is 25HZ):
> D:\cssAchiver\eclipse>ArchiveEngine.exe -engine Demo -pluginCustomization test.i
> ni
> 2014-10-22 10:14:20.505 配置 [Thread 1] org.csstudio.vtype.pv.internal.Activator
> (start) - PV prefix ca provided by JCA in org.csstudio.vtype.pv
> 2014-10-22 10:14:20.521 配置 [Thread 1] org.csstudio.vtype.pv.internal.Activator
> (start) - PV prefix loc provided by Local in org.csstudio.vtype.pv
> 2014-10-22 10:14:20.537 配置 [Thread 1] org.csstudio.vtype.pv.internal.Activator
> (start) - Default PV type ca
> 2014-10-22 10:14:20.537 信息 [Thread 1] org.csstudio.archive.engine.Application
> (start) - Archive Engine 3.3.0.201406061208
> 2014-10-22 10:14:20.724 信息 [Thread 1] org.csstudio.archive.engine.server.Engin
> eServer (<init>) - Engine HTTP Server on http://localhost:4812/main
> 2014-10-22 10:14:20.724 信息 [Thread 1] org.csstudio.archive.engine.Application
> (start) - Reading configuration 'Demo'
> 2014-10-22 10:14:21.317 信息 [Thread 1] org.csstudio.archive.engine.Application
> (start) - Read configuration: 1 channels in 0.58 seconds
> 2014-10-22 10:14:21.317 信息 [Thread 1] org.csstudio.archive.engine.Application
> (start) - Running, CA addr list: 192.168.0.66
> 2014-10-22 10:14:21.317 信息 [Thread 46] org.csstudio.archive.engine.model.Write
> Thread (run) - WriteThread starts
> 2014-10-22 10:14:21.348 配置 [Thread 1] org.csstudio.vtype.pv.jca.JCAContext (<i
> nit>) - Using Pure Java CAJ
> 2014-10-22 10:14:21.582 信息 [Thread 55] org.csstudio.archive.engine.scanner.Sca
> nThread (run) - Scan Thread runs
> 2014-10-22 10:14:51.378 警告 [Thread 52] org.csstudio.archive.engine.ThrottledLo
> gger (log) - rcs:cpci9110:wf_6_a: 145 overruns
> 2014-10-22 10:14:51.659 警告 [Thread 51] org.csstudio.archive.engine.ThrottledLo
> gger (log) - rcs:cpci9110:wf_6_a: 6 overruns
> ... More messsages suppressed for 1.00 days ....
> Exception in thread "qtp1943325854-30" Exception in thread "WriteThread" java.la
> ng.OutOfMemoryError: GC overhead limit exceeded
>        at java.util.ArrayList.iterator(Unknown Source)
> Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler i
> n thread "qtp1943325854-30"
> 
> Exception in thread "qtp1943325854-43" java.lang.OutOfMemoryError: GC overhead l
> imit exceeded
>        at sun.util.locale.BaseLocale.getInstance(Unknown Source)
>        at java.util.Locale.getInstance(Unknown Source)
>        at java.util.ResourceBundle$Control$CandidateListCache.getDefaultList(Un
> known Source)
>        at java.util.ResourceBundle$Control$CandidateListCache.createObject(Unkn
> own Source)
>        at java.util.ResourceBundle$Control$CandidateListCache.createObject(Unkn
> own Source)
>        at sun.util.locale.LocaleObjectCache.get(Unknown Source)
>        at java.util.ResourceBundle$Control.getCandidateLocales(Unknown Source)
>        at sun.util.resources.LocaleData$LocaleDataResourceBundleControl.getCand
> idateLocales(Unknown Source)
>        at java.util.ResourceBundle.getBundleImpl(Unknown Source)
>        at java.util.ResourceBundle.getBundle(Unknown Source)
>        at sun.util.resources.LocaleData$1.run(Unknown Source)
>        at sun.util.resources.LocaleData$1.run(Unknown Source)
>        at java.security.AccessController.doPrivileged(Native Method)
>        at sun.util.resources.LocaleData.getBundle(Unknown Source)
>        at sun.util.resources.LocaleData.getDateFormatData(Unknown Source)
>        at java.text.DateFormatSymbols.initializeData(Unknown Source)
>        at java.text.DateFormatSymbols.<init>(Unknown Source)
>        at sun.util.locale.provider.DateFormatSymbolsProviderImpl.getInstance(Un
> known Source)
>        at java.text.DateFormatSymbols.getProviderInstance(Unknown Source)
>        at java.text.DateFormatSymbols.getInstance(Unknown Source)
>        at java.util.Calendar.getDisplayName(Unknown Source)
>        at java.text.SimpleDateFormat.subFormat(Unknown Source)
> 
> Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler i
> n thread "WriteThread"
> Exception in thread "qtp1943325854-36" Exception in thread "qtp1943325854-61" Ex
> ception in thread "qtp1943325854-31" Exception in thread "pool-1-thread-1"
> Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler i
> n thread "pool-1-thread-1"
> Exception in thread "pool-1-thread-3" java.lang.OutOfMemoryError: GC overhead li
> mit exceeded
> Exception in thread "qtp1943325854-41" java.lang.OutOfMemoryError: GC overhead l
> imit exceeded
> Exception in thread "qtp1943325854-65" Exception in thread "qtp1943325854-29" Ex
> ception in thread "Thread-1" Exception in thread "qtp1943325854-35" Exception in
> thread "qtp1943325854-58" Exception in thread "qtp1943325854-59" java.lang.OutO
> fMemoryError: GC overhead limit exceeded
> Exception in thread "qtp1943325854-45"
> Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler i
> n thread "qtp1943325854-45"
> Exception in thread "qtp1943325854-60" java.lang.OutOfMemoryError: GC overhead l
> imit exceeded
> Exception in thread "qtp1943325854-57" Exception in thread "qtp1943325854-53" ja
> va.lang.OutOfMemoryError: GC overhead limit exceeded
> java.lang.OutOfMemoryError: GC overhead limit exceeded
>        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject
> .addConditionWaiter(Unknown Source)
>        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject
> .awaitNanos(Unknown Source)
>        at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.jav
> a:342)
>        at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThre
> adPool.java:526)
>        at org.eclipse.jetty.util.thread.QueuedThreadPool.access$600(QueuedThrea
> dPool.java:44)
>        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool
> .java:572)
>        at java.lang.Thread.run(Unknown Source)
> Exception in thread "qtp1943325854-71" java.lang.OutOfMemoryError: GC overhead l
> imit exceeded
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> 
> Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler i
> n thread "qtp1943325854-29"
> Exception in thread "com.cosylab.epics.caj.util.Timer" java.lang.OutOfMemoryErro
> r: GC overhead limit exceeded
> 
>> -----原始邮件-----
>> 发件人: "Johnson, Andrew N." <anj@aps.anl.gov>
>> 发送时间: 2014年10月21日 星期二
>> 收件人: "龙巍" <longw@ihep.ac.cn>
>> 抄送: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
>> 主题: Re: Problem with CSS archive engine
>> 
>> By default a VxWorks IOC tries to synchronize its OS clock with an NTP server running on its boot host, but if you have NTP available from a different IP address you can configure that by setting the environment variable EPICS_TS_NTP_INET. You may also need to set the EPICS_TIMEZONE variable to your local timezone, see the comments in the base/configure/CONFIG_SITE_ENV file for details of the format of that variable.
>> 
>> - Andrew
>> 
>> -- 
>> Sent from my iPad
>> 
>>> On Oct 21, 2014, at 10:50, 龙巍 <longw@ihep.ac.cn> wrote:
>>> 
>>> hello Ralph,
>>> Thanks for your suggestions,I got the date from the IOC shell:
>>> ->date
>>> 1990/01/02 00:45:24.212000
>>> 
>>> Just like you said, the IOC was not able to synchronize its time. But I
>>> don't know how to do.
>>> Can you give me some advice?
>>> 
>>> And, there is a warning when the IOC start:
>>> ############################################################################
>>> ## EPICS R3.14.12.1 $Date: Tue 2011-04-26 15:36:19 -0500$
>>> ## EPICS Base built May 30 2014
>>> ############################################################################
>>> WARNING: OS Clock time was read before being set.
>>> Using 1990-01-02 00:00:00.000000 UTC
>>> iocRun: All initialization complete
>>> 
>>> Our IOC runs on the VxWorks OS system.
>>> So .. is anyone know how to set the OS Clock time?
>>> 
> 
> 



Replies:
Re: Problem with CSS archive engine 龙巍
References:
Re: Problem with CSS archive engine 龙巍
Re: Problem with CSS archive engine Johnson, Andrew N.
Re: Problem with CSS archive engine 龙巍

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