Elasticsearch lareg heap usage


(None) #1

Hi, running...

ES 1.5.2
Java 1.8_45
Windows 2008
4 nodes of: 32 cores 128GB 5 TB SSDs (each)

ES_HEAP_SIZE configured to 30g

I just finished bulk indexing 350,000,000 records but all 4 nodes are
consumming 60% heap usage and not collecting. I have your kit running on 1
node and I tried forcing GC but nothing went down.
I know disable explicit GC is turned on in the .bat files but with your kit
I'm still able to force collection. I was able to collect some memory
before.

Here is what is in the logs when I force GC from yourkit...

[ES xxx 01-01 (xxxx)] [gc][young][87406][39154] duration [1.6s],
collections [1]/[2.5s], total [1.6s]/[17h], memory
[18.1gb]->[17.1gb]/[30gb], all_pools {[young]
[1gb]->[32mb]/[0b]}{[survivor] [112mb]->[128mb]/[0b]}{[old]
[16.9gb]->[16.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][young][87489][39155] duration [1.6s],
collections [1]/[1.8s], total [1.6s]/[17h], memory
[18.4gb]->[17.1gb]/[30gb], all_pools {[young]
[1.3gb]->[0b]/[0b]}{[survivor] [128mb]->[128mb]/[0b]}{[old]
[16.9gb]->[16.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][old][87496][3] duration [43.2s], collections
[1]/[44.2s], total [43.2s]/[1.3m], memory [17.2gb]->[14.9gb]/[30gb],
all_pools {[young] [136mb]->[0b]/[0b]}{[survivor] [128mb]->[0b]/[0b]}{[old]
[16.9gb]->[14.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][young][87576][39156] duration [1.6s],
collections [1]/[2.7s], total [1.6s]/[17h], memory [16.3gb]->[15gb]/[30gb],
all_pools {[young] [1.3gb]->[0b]/[0b]}{[survivor] [0b]->[80mb]/[0b]}{[old]
[14.9gb]->[14.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][young][87680][39157] duration [1.5s],
collections [1]/[2.1s], total [1.5s]/[17h], memory
[16.3gb]->[14.9gb]/[30gb], all_pools {[young]
[1.3gb]->[0b]/[0b]}{[survivor] [80mb]->[32mb]/[0b]}{[old]
[14.9gb]->[14.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][young][87770][39158] duration [1.6s],
collections [1]/[1.9s], total [1.6s]/[17h], memory
[16.4gb]->[14.9gb]/[30gb], all_pools {[young]
[1.4gb]->[0b]/[0b]}{[survivor] [32mb]->[24mb]/[0b]}{[old]
[14.9gb]->[14.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][young][87861][39159] duration [1.7s],
collections [1]/[2.7s], total [1.7s]/[17h], memory
[16.4gb]->[14.9gb]/[30gb], all_pools {[young]
[1.4gb]->[0b]/[0b]}{[survivor] [24mb]->[24mb]/[0b]}{[old]
[14.9gb]->[14.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][young][87953][39160] duration [1.5s],
collections [1]/[1.9s], total [1.5s]/[17h], memory
[16.3gb]->[14.9gb]/[30gb], all_pools {[young]
[1.3gb]->[0b]/[0b]}{[survivor] [24mb]->[24mb]/[0b]}{[old]
[14.9gb]->[14.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][young][88043][39161] duration [1.6s],
collections [1]/[1.9s], total [1.6s]/[17h], memory
[16.4gb]->[14.9gb]/[30gb], all_pools {[young]
[1.4gb]->[0b]/[0b]}{[survivor] [24mb]->[32mb]/[0b]}{[old]
[14.9gb]->[14.9gb]/[30gb]}
[ES xxx 01-01 (xxxx)] [gc][old][88079][4] duration [37.9s], collections
[1]/[38.1s], total [37.9s]/[2m], memory [15.5gb]->[14.9gb]/[30gb],
all_pools {[young] [544mb]->[8mb]/[0b]}{[survivor] [32mb]->[0b]/[0b]}{[old]
[14.9gb]->[14.9gb]/[30gb]}

As you can see I forced it twice and not much got collected...

Is it the memory mapped files that are taking up the space? Right now the
cluster is idle.

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(system) #2