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From "Tim Armstrong (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-5158: Part 1: include untracked memory in MemTracker dumps
Date Tue, 09 May 2017 00:29:41 GMT
Tim Armstrong has uploaded a new patch set (#2).

Change subject: IMPALA-5158: Part 1: include untracked memory in MemTracker dumps

IMPALA-5158: Part 1: include untracked memory in MemTracker dumps

The MemTracker dumps are easier to understand if all children of the
process tracker actually add up to the process consumption. There is
always a discrepancy, which corresponds (mostly) to untracked memory.
This commit adds a new line item in the MemTracker dump which is the
process consumption value minus the sum of all its children.

Here is an example of the new output:

  Process: Limit=8.35 GB Total=123.74 MB Peak=219.93 MB
    Free Disk IO Buffers: Total=1.37 MB Peak=1.37 MB
    RequestPool=default-pool: Total=609.09 KB Peak=10.14 MB
      Query(fd40f6b7542f7e7c:4aef272300000000): Total=609.09 KB Peak=1.19 MB
	Fragment fd40f6b7542f7e7c:4aef272300000000: Total=609.09 KB Peak=1.19 MB
	  AGGREGATION_NODE (id=3): Total=24.00 KB Peak=36.00 KB
	    Exprs: Total=4.00 KB Peak=4.00 KB
	  NESTED_LOOP_JOIN_NODE (id=2): Total=412.90 KB Peak=412.90 KB
	    Nested Loop Join Builder: Total=392.00 KB Peak=392.00 KB
	  HDFS_SCAN_NODE (id=1): Total=160.00 KB Peak=768.00 KB
	    Exprs: Total=4.00 KB Peak=4.00 KB
	  HDFS_SCAN_NODE (id=0): Total=0 Peak=344.00 KB
	  PLAN_ROOT_SINK: Total=0 Peak=0
	  CodeGen: Total=4.19 KB Peak=267.50 KB
	Block Manager: Limit=6.68 GB Total=0 Peak=0
    RequestPool=fe-eval-exprs: Total=0 Peak=4.00 KB
    Untracked Memory: Total=121.78 MB

Change-Id: I77e5b2ef5f85f82ee0226e4dad638233fec9428f
M be/src/runtime/
M be/src/runtime/mem-tracker.h
2 files changed, 46 insertions(+), 24 deletions(-)

  git pull ssh:// refs/changes/20/6820/2
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I77e5b2ef5f85f82ee0226e4dad638233fec9428f
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tim Armstrong <>

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