Github user mxm commented on a diff in the pull request:
https://github.com/apache/flink/pull/2177#discussion_r69124072
--- Diff: docs/setup/config.md ---
@@ -230,8 +240,8 @@ definition. This scheme is used **ONLY** if no other
scheme is specified (explic
## YARN
-- `yarn.heap-cutoff-ratio`: (Default 0.25) Percentage of heap space to
remove from containers started by YARN. When a user requests a certain amount
of memory for each TaskManager container (for example 4 GB), we can not pass
this amount as the maximum heap space for the JVM (`-Xmx` argument) because the
JVM is also allocating memory outside the heap. YARN is very strict with
killing containers which are using more memory than requested. Therefore, we
remove a 15% of the memory from the requested heap as a safety margin.
-- `yarn.heap-cutoff-min`: (Default 384 MB) Minimum amount of memory to cut
off the requested heap size.
+- `container.heap-cutoff-ratio`: (Default 0.25) Percentage of heap space
to remove from containers started by YARN. When a user requests a certain
amount of memory for each TaskManager container (for example 4 GB), we can not
pass this amount as the maximum heap space for the JVM (`-Xmx` argument)
because the JVM is also allocating memory outside the heap. YARN is very strict
with killing containers which are using more memory than requested. Therefore,
we remove a 15% of the memory from the requested heap as a safety margin.
--- End diff --
+1
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