Free space availabe in cache directory is lower than minimum amount recommended
I discovered this as part of my work and am sharing it here in case others have seen it.
This message can appear in the JTS or application log files when the server is started: WARN eam.server.monitoring.resources.cache.CacheManager - The free space available "1055072256" in the cache directory is lower than the minimum amount recommended: "2147483648". If monitoring is enabled, it may have an impact on server performance. Is it a cause for concern? I will provide the answer in the following post. Martha (Ruby) Andrews Jazz Foundation L3 Development Team Lead |
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The message is an indication that the JVM tmpdir has less than 2 GB available. In general, the temp directory should be as fast and large as is feasible. The temp directory can be set in Tomcat or WAS using the JVM parameter:
-Djava.io.tmpdir=/path/to/tmpdir Comments I am receiving the following in my application log; The free space available "1828696064" in the cache directory is lower than the minimum amount recommended: "2147483648".
Our WebSphere installation is located at /opt/IBM/WebSphere/AppServer/... The temp directories are contained within that directory tree.
I don't understand why I would be getting this warning with the /opt/IBM file system of 20GB with 12GB free. If we don't have the -Djava.io.tmpdir parameter set, how can I tell where it is trying to write with limited space?
If it is trying to write to /tmp, that file system only has 1.5GB free.
The default java.io.tmpdir value on Unix is typically /tmp or /var/tmp. If you have not explicitly specified this property, you need to check the free space under these two paths.
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