GitHub user suyanNone opened a pull request:
https://github.com/apache/spark/pull/3629
[SPARK-4777][CORE] Some block memory after unrollSafely not count into used
memory(memoryStore.entrys or unrollMemory)
Some memory not count into memory used by memoryStore or unrollMemory.
Thread A after unrollsafely memory, it will release 40MB unrollMemory(40MB
will used by other threads). then ThreadA wait get accountingLock to tryToPut
blockA(30MB). before Thread A get accountingLock, blockA memory size is not
counting into unrollMemory or memoryStore.currentMemory.
IIUC, freeMemory should minus that block memory
So, put this release memory into pending, and release it in tryToPut before
ensureSpace
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/suyanNone/spark unroll-memory
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3629.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3629
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commit 072e43d49226f1ae660d9b2ad53dc43ee78481e9
Author: hushan[è¡ç] <[email protected]>
Date: 2014-12-05T02:56:20Z
Pending unroll memory for this block untill tryToPut
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