Hello!

When a client node joins or leaves, it will cause a Partition Map Exchange
which includes a brief pause.

If you have requests with very short timeouts, you can see that some
operations will fail.

I think there are some client node PME optimizations in the works, in the
meantime consider increasing timeouts or avoiding clients' joins/leaves
during operation.

Regards,
-- 
Ilya Kasnacheev


пн, 11 нояб. 2019 г. в 11:35, ihalilaltun <ibrahim.al...@segmentify.com>:

> Hi igniters,
>
> Everytime a client node connects or disconnects from the grid we get
> exessive number of timeouts and huge load on grid nodes. Current grid-node
> metrics are the followings;
>
> Metrics for local node (to disable set 'metricsLogFrequency' to 0)
>     ^-- Node [id=cbdf5b45, uptime=40 days, 08:39:18.888]
>     ^-- H/N/C [hosts=50, nodes=51, CPUs=288]
>     ^-- CPU [cur=50.3%, avg=11.15%, GC=0%]
>     ^-- PageMemory [pages=7115259]
>     ^-- Heap [used=6753MB, free=17.56%, comm=8192MB]
>     ^-- Off-heap [used=28119MB, free=2.94%, comm=28972MB]
>     ^--   sysMemPlc region [used=0MB, free=99.99%, comm=100MB]
>     ^--   default region [used=28118MB, free=1.93%, comm=28672MB]
>     ^--   metastoreMemPlc region [used=1MB, free=98.76%, comm=100MB]
>     ^--   TxLog region [used=0MB, free=100%, comm=100MB]
>     ^-- Ignite persistence [used=32000MB]
>     ^--   sysMemPlc region [used=0MB]
>     ^--   default region [used=32000MB]
>     ^--   metastoreMemPlc region [used=unknown]
>     ^--   TxLog region [used=0MB]
>     ^-- Outbound messages queue [size=0]
>     ^-- Public thread pool [active=0, idle=0, qSize=0]
>     ^-- System thread pool [active=0, idle=128, qSize=0]
>
> this log is from our internal monitoring tool;
> PROBLEM: ignite-22: Warning: Processor load is high on pk-ignite: 5.485
>
> ignite logs and gc logs;
> ignite.zip
> <http://apache-ignite-users.70518.x6.nabble.com/file/t2515/ignite.zip>
> gc.zip <http://apache-ignite-users.70518.x6.nabble.com/file/t2515/gc.zip>
>
>
> any thougs?
>
>
>
>
>
> -----
> İbrahim Halil Altun
> Senior Software Engineer @ Segmentify
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>

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