[infinispan-issues] [JBoss JIRA] (ISPN-6239) InitialClusterSizeTest.testInitialClusterSizeFail random failures

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-6239:
-------------------------------
              Status: Pull Request Sent  (was: Reopened)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/4030, https://github.com/infinispan/infinispan/pull/4138  (was: https://github.com/infinispan/infinispan/pull/4030)


> InitialClusterSizeTest.testInitialClusterSizeFail random failures
> -----------------------------------------------------------------
>
>                 Key: ISPN-6239
>                 URL: https://issues.jboss.org/browse/ISPN-6239
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Test Suite - Core
>    Affects Versions: 8.2.0.Beta2
>            Reporter: Dan Berindei
>            Assignee: Dan Berindei
>              Labels: testsuite_failure
>             Fix For: 8.2.0.CR1, 8.2.0.Final
>
>
> The test starts 3 nodes concurrently, but configures Infinispan to wait for a cluster of 4 nodes, and expects that the nodes fail to start in {{initialClusterTimeout}} + 1 second.
> However, because of a bug in {{TEST_PING}}, the first 2 nodes see each other as coordinator and send a {{JOIN}} request to each other, and it takes 3 seconds to recover and start the cluster properly.
> The bug in {{TEST_PING}} is actually a hack introduced for {{ISPN-5106}}. The problem was that the first node (A) to start would install a view with itself as the single node, but the second node to start (B) would start immediately, and the discovery request from B would reach B's {{TEST_PING}} before it saw the view. That way, B could choose itself as the coordinator based on the order of A's and B's UUIDs, and the cluster would start as 2 partitions. Since most of our tests actually remove {{MERGE3}} from the protocol stack, the partitions would never merge and the test would fail with a timeout.
> I fixed this in {{TEST_PING}} by assuming that the sender of the first discovery response is a coordinator, when there is a single response. This worked because all but a few tests start their managers sequentially, however it sometimes introduces this 3 seconds delay when nodes start in parallel.



--
This message was sent by Atlassian JIRA
(v6.4.11#64026)