Details
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Task
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Status: Resolved
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Blocker
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Resolution: Fixed
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2.6
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None
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None
Description
Was troubleshooting an Ignite deployment today and couldn't find out from the logs what was the actual off-heap space used.
Those were the given memory resoures (Ignite 2.6):
[2018-08-16 15:07:49,961][INFO ][main][GridDiscoveryManager] Topology snapshot [ver=1, servers=1, clients=0, CPUs=64, offheap=30.0GB, heap=24.0GB]
And that weird stuff was reported by the node (pay attention to the last line):
[2018-08-16 15:45:50,211][INFO ][grid-timeout-worker-#135%cluster_31-Dec-2017%][IgniteKernal%cluster_31-Dec-2017] Metrics for local node (to disable set 'metricsLogFrequency' to 0) ^-- Node [id=c033026e, name=cluster_31-Dec-2017, uptime=00:38:00.257] ^-- H/N/C [hosts=1, nodes=1, CPUs=64] ^-- CPU [cur=0.03%, avg=5.54%, GC=0%] ^-- PageMemory [pages=6997377] ^-- Heap [used=9706MB, free=61.18%, comm=22384MB] ^-- Non heap [used=144MB, free=-1%, comm=148MB] - this line is always the same!
Had to change the code by using
dataRegion.getPhysicalMemoryPages()
to find out that actual off-heap usage size was
>>> Physical Memory Size: 28651614208 => 27324 MB, 26 GB
The logs have to report the following instead:
^-- Off-heap {Data Region 1} [used={dataRegion1.getPhysicalMemorySize()}, free=X%, comm=dataRegion1.maxSize()]
^-- Off-heap {Data Region 2} [used={dataRegion2.getPhysicalMemorySize()}, free=X%, comm=dataRegion2.maxSize()]
If Ignite persistence is enabled then the following extra lines have to be added to see the disk used space:
^-- Ignite persistence {Data Region 1}: used={dataRegion1.getTotalAllocatedSize() - dataRegion1.getPhysicalMemorySize()}
^-- Ignite persistence {Data Region 2} [used={dataRegion2.getTotalAllocatedSize() - dataRegion2.getPhysicalMemorySize()}]
Attachments
Issue Links
- is duplicated by
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IGNITE-5583 Switch non-heap memory metrics to new page memory semantics
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- Open
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- relates to
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- Resolved
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- links to
(1 links to)