Troubleshooting CA ARCserve Central Host-Based VM Backup › The CA ARCserve D2D Web Service Runs Slowly

The CA ARCserve D2D Web Service Runs Slowly

Valid on Windows operating systems.

Symptom 1:

The CA ARCserve D2D web service on CA ARCserve D2D systems runs slowly. You can detect other symptoms such as:

• The CA ARCserve D2D web service stops responding or occupies 100 percent of the CPU resources.
• CA ARCserve D2D nodes perform poorly or cannot communicate with the web service.

Solution 1:

In various environmental configurations, you can discover that the CA ARCserve D2D web service occupies too much CPU time, or the response is slow. By default, Tomcat is configured to allocate a limited amount of memory to the nodes, which may not be suitable for your environment. To verify this problem, review the following log files:

<D2D_home>\TOMCAT\logs\casad2dwebsvc-stdout.*.log
<D2D_home>\TOMCAT\logs\casad2dwebsvc-stder.*.log
<D2D_home>\TOMCAT\logs\catalina.*.log
<D2D_home>\TOMCAT\logs\localhost.*.log

Search for the following message:

java.lang.OutOfMemoryError 

To correct this problem, increase the amount of allocated memory.

To increase the memory, do the following:

1. Open Registry Editor and access the following key:
   • x86 Operating Systems:

     HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\Procrun 2.0\CASAD2DWebSvc\Parameters\Java
     

   • x64 Operating Systems:

     HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Apache Software Foundation\Procrun 2.0\CASAD2DWebSvc\Parameters\Java
     

2. Do one of the following:
   • If the message in the log file is the following:

     java.lang.OutOfMemoryError: PermGen space
     

     Append the following to the value of Options.

     -XX:PermSize=128M -XX:MaxPermSize=128M
     

     Note: You may need to increase the value of -XX:MaxPermSize to suit your environment.

   • If the message in the log file is one of the following:

     java.lang.OutOfMemoryError: Java heap space
     java.lang.OutOfMemoryError: GC overhead limit exceeded
     

     Increase the value of the following DWORD:

     JvmMx
     

3. Restart the CA ARCserve D2D web service.

Symptom 2

Scheduled backups are skipped and stop running.

Solution 2

When you configure the MAX value as 20 or less than 20 for concurrent backups, do the following:

1. Increase the value of the following DWORD:

   JvmMx=256
   

   Note: This DWORD is referenced in Solution 1.

2. Append the following to the value of Options.

   -XX:MaxPermSize=128M
   

   Note: This DWORD is referenced in Solution 1.

When you configure the MAX value as more than 20 but less than 50 for concurrent backups, do the following:

1. Increase the value of the following DWORD:

   JvmMx=512
   

   Note: This DWORD is referenced in Solution 1.

2. Append the following to the value of Options.

   -XX:MaxPermSize=256M
   

   Note: This DWORD is referenced in Solution 1.