Elasticsearch heapdump using jmap

Elastic Stack Elasticsearch
1

Over last few days noticed more GC in my es cluster and was trying to take
a look at heap .. I'm runnning Es over wrapper, running on EC2 , with
Amazon linux AMI

Always get this message with jmap -J-d64 -histo

"Unable to open socket file: target process not responding or HotSpot VM
not loaded."

Tried , with -F option - that works, but wasnt able to provide all objects

  • since it fails with bad Address error ( i think using -F , thats always a
    high possibility )

If anyone successfully took a heap dump - help will be appreciated !

TIA
Nirmal

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2

It clearly says, you have to use -F

On Friday, July 11, 2014 6:16:36 PM UTC+2, NC wrote:

Over last few days noticed more GC in my es cluster and was trying to take
a look at heap .. I'm runnning Es over wrapper, running on EC2 , with
Amazon linux AMI

Always get this message with jmap -J-d64 -histo

"Unable to open socket file: target process not responding or HotSpot VM
not loaded."

Tried , with -F option - that works, but wasnt able to provide all objects

  • since it fails with bad Address error ( i think using -F , thats always a
    high possibility )

If anyone successfully took a heap dump - help will be appreciated !

TIA
Nirmal

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You received this message because you are subscribed to the Google Groups "elasticsearch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/7a74d52e-285b-4d87-9bea-d80041118dd3%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.