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ORA-01075: you are currently logged on

22 August 2012

Written by Prakash Palani

Below error message is thrown when the database was not stopped properly / when it has shared memory problems.

Error Message :  ORA-01075: you are currently logged on -

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A significant part of sql server process memory has been paged out

21 August 2012

Written by Prakash Palani

We have recently encountered an incident with below error message in one of the most critical production system, upon analysis, it was found that considerable amount of memory reserved by SQL Memory was trimmed due to lack of physical memory. During the trimming operation, for about 5 minutes, overall SAP system performance was poor and all the end users were having very high response time.

 

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Forcing MemoryAnalyzer to use a specific version of JVM

20 August 2012

Written by Prakash Palani

Here is a tip to force the memory analyzer to use a specific version of Java VM.

Run the below command from the directory where memory analyzer is placed

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Issues with SAPJVM Switch in Microsoft Cluster Environment

17 August 2012

Written by Prakash Palani

Problem Statement : Below error message was thrown when performing SAPJVM switch specifically in MSCS environment.

Execution of the command ""C:\Program Files\sapinst_instdir\NW70\SWITCH_JDK\sapjvm_4\sapjvm_4\bin\java.exe" -classpath E:/usr/sap//SYS/global/sltools/sharedlib/launcher.jar com.sap.engine.offline.OfflineToolStart com.sap.inst.jswitch.JRead

 

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System Copy Methods

16 August 2012

Written by Prakash Palani

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