[infinispan-issues] [JBoss JIRA] Updated: (ISPN-1000) PUSH based rehashing

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-1000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-1000:
-------------------------------

              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/405


I updated the rebalance algorithm to block transactions in the entire cluster untill all nodes have finished pushing state. The apply state commands will bypass the block since they use the SKIP_LOCKING flag.

In an earlier commit for ISPN-1106 I was catching InterruptedException and wrapping it in an IllegalStateException, now I moved the wait to the RehashControlCommand-related methods only and they don't catch the InterruptedException.

> PUSH based rehashing
> --------------------
>
>                 Key: ISPN-1000
>                 URL: https://issues.jboss.org/browse/ISPN-1000
>             Project: Infinispan
>          Issue Type: Feature Request
>          Components: Distributed Cache
>    Affects Versions: 4.2.0.Final
>            Reporter: Manik Surtani
>            Assignee: Dan Berindei
>              Labels: rehash
>             Fix For: 5.0.0.FINAL
>
>
> Current rehash schemes are based on a PULL of state.  Joiners (and new owners after a leave) pull state from their neighbours.  This JIRA is to reimplement this as a PUSH based scheme, where all nodes detect new joiners (or leavers) and analyse their internal state and determine what needs to be pushed where.
> The scheme should be more robust, involving far fewer RPCs and coordination, and would work better for merge views detected when partitions heal.
> Based on Bela's prototype on https://github.com/belaban/infinispan/tree/rebalance-changes

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