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From "Alexei Scherbakov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-5457) Weird discovery behavior on split brain.
Date Thu, 08 Jun 2017 16:46:18 GMT
Alexei Scherbakov created IGNITE-5457:
-----------------------------------------

             Summary: Weird discovery behavior on split brain.
                 Key: IGNITE-5457
                 URL: https://issues.apache.org/jira/browse/IGNITE-5457
             Project: Ignite
          Issue Type: Bug
          Components: general
    Affects Versions: 2.0
            Reporter: Alexei Scherbakov
            Priority: Critical
             Fix For: 2.2


I observe buggy behavior in case of simulated split brain.

Nodes in DataCenter1 (where coordinator is located) are slowly leave grid,

while nodes in DataCenter2 stay in grid forever.

In logs I see attempts multiple attemps to kick coordinator by communcation by socket timeout,
but number of nodes does not change.

{noformat}
19:13:53.978 [INFO ] [o.g.g.i.p.c.d.GridCacheDatabaseSharedManager] [T:] - Skipping checkpoint
(no pages were modified) [checkpointLockWait=0ms, checkpointLockHoldTime=131ms, reason='timeout']
19:14:03.289 [WARN ] [o.a.i.s.c.tcp.TcpCommunicationSpi] [T:] - Connect timed out (consider
increasing 'connTimeout' configuration property) [addr=grid457.ca.sbrf.ru/10.116.206.193:47100,
connTimeout=120000]
19:14:03.289 [ERROR] [o.a.i.s.c.tcp.TcpCommunicationSpi] [T:] - TcpCommunicationSpi failed
to establish connection to node, node will be dropped from cluster [rmtNode=TcpDiscoveryNode
[id=a8ac1b24-8377-4064-a3d9-02bad9c6f2bb, addrs=[10.116.206.193], sockAddrs=[grid457.ca.sbrf.ru/10.116.206.193:47500],
discPort=47500, order=1, intOrder=1, lastExchangeTime=1496936257121, loc=false, ver=1.10.3#20170604-sha1:30521a17,
isClient=false]]
org.apache.ignite.IgniteCheckedException: Failed to connect to node (is node still alive?).
Make sure that each ComputeTask and cache Transaction has a timeout set in order to prevent
parties from waiting forever in case of network issues [nodeId=a8ac1b24-8377-4064-a3d9-02bad9c6f2bb,
addrs=[grid457.ca.sbrf.ru/10.116.206.193:47100]]
	at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:3022)
[ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
	at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createNioClient(TcpCommunicationSpi.java:2636)
[ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
	at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.reserveClient(TcpCommunicationSpi.java:2528)
[ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
	at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.access$5800(TcpCommunicationSpi.java:245)
[ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
	at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi$CommunicationWorker.processDisconnect(TcpCommunicationSpi.java:3830)
[ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
	at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi$CommunicationWorker.body(TcpCommunicationSpi.java:3656)
[ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
	at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) [ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
	Suppressed: org.apache.ignite.IgniteCheckedException: Failed to connect to address [addr=grid457.ca.sbrf.ru/10.116.206.193:47100,
err=null]
		at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:3027)
[ignite-core-1.10.3.ea10.jar:1.10.3.ea10]
		... 6 common frames omitted
	Caused by: java.net.SocketTimeoutException: null
		at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:118)
		at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2884)
		... 6 common frames omitted
19:14:23.989 [INFO ] [o.g.g.i.p.c.d.GridCacheDatabaseSharedManager] [T:] - Skipping checkpoint
(no pages were modified) [checkpointLockWait=0ms, checkpointLockHoldTime=130ms, reason='timeout']
19:14:34.078 [INFO ] [o.g.g.i.p.c.d.GridCacheDatabaseSharedManager] [T:] - Skipping checkpoint
(no pages were modified) [checkpointLockWait=0ms, checkpointLockHoldTime=211ms, reason='timeout']
19:14:37.967 [INFO ] [o.a.i.i.IgniteKernal%DPL_GRID%grid880] [T:] - 
Metrics for local node (to disable set 'metricsLogFrequency' to 0)
    ^-- Node [id=21e01ea7, name=DPL_GRID%grid880, uptime=00:37:00:200]
    ^-- H/N/C [hosts=144, nodes=160, CPUs=8064]
    ^-- CPU [cur=0.2%, avg=2.37%, GC=0%]
    ^-- PageMemory [pages=604144]
    ^-- Heap [used=33396MB, free=49.04%, comm=65536MB]
    ^-- Non heap [used=171MB, free=-1%, comm=173MB]
    ^-- Public thread pool [active=0, idle=0, qSize=0]
    ^-- System thread pool [active=0, idle=0, qSize=0]
    ^-- Outbound messages queue [size=0]
{noformat}



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