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The Workbench Service Account “mciworkb” must be configured with a ulimit for the number of open files set to at least 10240. This setting is normally configured when you install Information Server.

On AIX, check the /etc/security/limits file which should contain the following lines:-

mciworkb:
        nofiles = 10240
        nofiles_hard = 10240

If the values are not there or set to smaller values, use the following commands:-

chuser "nofiles=10240" mciworkb
chuser "nofiles_hard=10240" mciworkb

On other flavours of Linux, check the file /etc/security/limits.conf file which should contain the following lines:-

*               soft    nofile          10240
*               hard    nofile          10240

...

Problem

If the Workbench server is constrained for resources, there is a possibility that Workbench will show errors in workbench log file mci.log soon after startup.

Solution

The JAVA_OPTS environment variable can be set to modify the resource usage of Java. More specifically, you can halve the Java Stack Size from 2MB to 1MB.

e.g. $JAVA_OPTS=-Xss1024K

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