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https://issues.apache.org/jira/browse/IGNITE-4719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15978770#comment-15978770
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Vyacheslav Daradur edited comment on IGNITE-4719 at 4/21/17 2:03 PM:
---------------------------------------------------------------------
[~dmagda]
Does this task make sense?
The main goal of this to describe suggestions which are output at Ignite
startup:
{code}
[11:54:40]
[11:54:41] Message queue limit is set to 0 which may lead to potential OOMEs
when running cache operations in FULL_ASYNC or PRIMARY_SYNC modes due to
message queues growth on sender and receiver sides.
[11:54:41] Security status [authentication=off, tls/ssl=off]
[11:54:43] Performance suggestions for grid (fix if possible)
[11:54:43] To disable, set -DIGNITE_PERFORMANCE_SUGGESTIONS_DISABLED=true
[11:54:43] ^-- JVM heap size is greater than 30.5Gb, JVM will not use
compressed oops
[11:54:43] ^-- Enable server mode for JVM (add '-server' to JVM options)
[11:54:43] ^-- Enable G1 Garbage Collector (add '-XX:+UseG1GC' to JVM options)
[11:54:43] ^-- Specify JVM heap max size (add '-Xmx<size>[g|G|m|M|k|K]' to
JVM options)"
[11:54:43] ^-- Specify New I/O max total size (add
'-XX:MaxDirectMemorySize=<size>[g|G|m|M|k|K]' to JVM options)
[11:54:43] ^-- Enable the thread-local allocation blocks (add '-XX:+UseTLAB'
to JVM options)
[11:54:43] ^-- Disable processing of calls to System.gc() (add
'-XX:+DisableExplicitGC' to JVM options)
[11:54:43] ^-- Speed up flushing of dirty pages by OS (alter
vm.dirty_writeback_centisecs and vm.dirty_expire_centisecs parameters by
setting to 500)
[11:54:43] ^-- Reduce pages swapping ratio (set vm.swappiness=10)
[11:54:43] ^-- Disable NUMA memory reclaim (set vm.zone_reclaim_mode=0)
[11:54:43] ^-- Avoid direct reclaim and page allocation failures (set
vm.extra_free_kbytes=1240000)
[11:54:43] Refer to this page for more performance suggestions:
https://apacheignite.readme.io/docs/jvm-and-system-tuning
[11:54:43]
[11:54:43] To start Console Management & Monitoring run ignitevisorcmd.{sh|bat}
[11:54:43]
[11:54:43] Ignite node started OK (id=8bf18ef1)
[11:54:43] Topology snapshot [ver=1, servers=1, clients=0, CPUs=1, heap=1.0GB]
{code}
was (Author: daradurvs):
[~dmagda]
Does this task make sense?
> Add documentation of current checks at Ignite-startup
> -----------------------------------------------------
>
> Key: IGNITE-4719
> URL: https://issues.apache.org/jira/browse/IGNITE-4719
> Project: Ignite
> Issue Type: Task
> Components: documentation
> Reporter: Vyacheslav Daradur
> Assignee: Vyacheslav Daradur
> Priority: Minor
> Attachments: suggestions.docx
>
>
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