I am seeing slow startup of weblogic application server with lot of errors messages

[Sujit Pandey]

Hi Ivan,

I am able to instrument weblogic now. But when I start the server, it starting up too slow. I am getting lot of errors messages in the application log file in weblogic 12c.

Here is one of them -

'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <dd7eb859-d1bd-4cd8-9a0e-ee24e70b6ec3-00000009> <1494855514401> <[severity-value: 32] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-000000> <2017-05-15 07:38:34,401: [inspectIT] 379495 [ (self-tuning)'] WARN  analyzer.impl.ByteCodeAnalyzer - Error occurred instrumenting the byte code of class oracle.jbo.server.DefaultTxnHandlerImpl. Sending the class structure to the CMR resulted in a time-out.> 

Is there any setting so that the error won't come up with quick start?

Thanks,

Sujit

[Ivan Senic]

Hi Sujit,

At the startup of the JVM we must send information about all the classes you are loading to the server. This takes a little bit of time. We do it only at the first start and then cache the information locally, thus next time you start the weblogic it will be way faster. 

About the exceptions, they are not hurting your app. Here it seams that CMR can not answer in timely manner on the request. Can you send me the logs from the agent/logs and cmr/logs folders to quickly have a look. Is there a lot of them or just sporadic ones?

Cheers,

Ivan

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[Sujit Pandey]

Thanks Ivan..Not of much concern as it does not impact my evaluation.I am quite impressed with features. Just wanted to know that does it support ditributed tracing. As in accross various layers running on different JVMs? This is very much required for us to trace calls across layers.

On Monday, May 15, 2017 at 7:52:21 PM UTC+5:30, Ivan Senic wrote:

Hi Sujit,

At the startup of the JVM we must send information about all the classes you are loading to the server. This takes a little bit of time. We do it only at the first start and then cache the information locally, thus next time you start the weblogic it will be way faster. 

About the exceptions, they are not hurting your app. Here it seams that CMR can not answer in timely manner on the request. Can you send me the logs from the agent/logs and cmr/logs folders to quickly have a look. Is there a lot of them or just sporadic ones?

Cheers,

Ivan

On Mon, May 15, 2017 at 3:45 PM, Sujit Pandey <sujit....@gmail.com> wrote:

Hi Ivan,

I am able to instrument weblogic now. But when I start the server, it starting up too slow. I am getting lot of errors messages in the application log file in weblogic 12c.

Here is one of them -

'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <dd7eb859-d1bd-4cd8-9a0e-ee24e70b6ec3-00000009> <1494855514401> <[severity-value: 32] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-000000> <2017-05-15 07:38:34,401: [inspectIT] 379495 [ (self-tuning)'] WARN  analyzer.impl.ByteCodeAnalyzer - Error occurred instrumenting the byte code of class oracle.jbo.server.DefaultTxnHandlerImpl. Sending the class structure to the CMR resulted in a time-out.> 

Is there any setting so that the error won't come up with quick start?

Thanks,

Sujit

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[Ivan Senic]

Hi Sujit,

The support for HTTP and JMS communication is already in the master branch. Will be included in the next release 1.7.11 that is out today :) Documentation is already available on our page: https://inspectit-performance.atlassian.net/wiki/display/DOC17/Working+with+remote+traces

Cheers,

Ivan

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[Sujit Pandey]

Thanks Ivan..Just wanted to know if there is any future roadmap of integrating other technologies across tiers in future as we have RMI/ORMI which talks across boundaries of tiers. 

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[Ivan Senic]

Hi Sujit,

At the moment I think that the next thing is to add support for the asynchronous execution switches in same JVM using Executors. As well some additional HTTP clients are missing for us and we want to include them.  

We of course want to support Java RMI as well. But with RMI it's way complicated than with JMS or HTTP communication as there is a need of knowing if the other side is instrumented with inspectIT as well or not. Thus, this brings additional complexity. When this will be done by us I can not tell you. We know what needs to be done, but it's very time consuming. I will let you know when we have some updates.

Cheers,

Ivan

  

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[Sujit Pandey]

Thanks a lot Ivan for your prompt inputs..

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