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Java OutOfMemoryError: Metaspace in app-system or bg-system.log, low memory usage in heap dump

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Article ID: 128527

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Updated On:

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Issue/Introduction

Alert showed java.lang.OutOfMemoryError in the app-system.log file.

Upon checking the heap dump we could see low memory usage and nothing out of ordinary. This is not a heap space issue but metaspace issue.

Error from the system log:
2019/02/21 08:23:23.414 | java.lang.OutOfMemoryError: Metaspace

Environment

Release: 15.4.1

Resolution

  • Check the current value for Metaspace in the properties.xml in jvmParameters for the affected service. This value may have to be increased.
    Example:
    If you have -XX:MaxMetaspaceSize=192m
    You may want to increase to:
    -XX:MaxMetaspaceSize=256m
  • Also check for anything done on this server during this time (another process that could take all the available RAM).