Theodore Vasiloudis created FLINK-2247:
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Summary: Improve the way memory is reported in the web frontend
Key: FLINK-2247
URL: https://issues.apache.org/jira/browse/FLINK-2247
Project: Flink
Issue Type: Improvement
Components: Webfrontend
Reporter: Theodore Vasiloudis
Priority: Trivial
Currently in the taskmanager view of the web frontend, the memory available to
Flink is reported in a slightly confusing manner.
In the worker summary, we get a report of the Flink Managed memory available,
and we get warnings when that is set too low.
The warnings though seem to be not taking the memory available to Flink when
being issued.
For example, in a machine with 7.5GB memory available it is normal to assign
~6GB for the JVM, which under default settings gives ~4GB to Flink managed
memory.
In this case however, we get a warning that 7500MB of memory is available, but
only ~$4000MB is available to Flink, disregarding the total amount available to
the JVM.
The reporting can then be improved by reporting the total amount available for
the JVM, the amount available for Flink's managed memory, and only issue
warnings when the settings are actually low compared to the available memory.
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