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https://issues.apache.org/jira/browse/IGNITE-4908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anton Vinogradov updated IGNITE-4908:
-------------------------------------
Description:
1) Lock
Entry Processor (sync) ->
add candidate.
returns "added candidate at first position"
retry failover ->
if already at first position -> return true
In case lock not acquired, wait for acquire (AbstractQueuedSynchronizer should
be used).
2) Unlock
Entry Processor (async) ->
remove candidate at first position
retry failover -> remove only if "candidate at first position" equals to
expected
listener ->
notify current "candidate at first position" it got lock
3)Failover
3.1) Originating node failed
Failed node listener ->
For each local(primary) lock ->
Entry Processor (async) ->
remove candidates related no failed node
retry failover not needed
listener ->
if "candidate at first position" removed ->
notify current "candidate at first position" it got lock
3.2) Primary node failed
After rebalancing schedule Callable ->
For each local(primary) lock ->
Entry Processor (async) ->
remove candidates related to failed nodes
retry failover not needed
listener ->
notify current "candidate at first position" it got lock
was:
We should make a benchmark and investigate this issue.
> Ignite.reentrantLock looks much slower than IgniteCache.lock.
> -------------------------------------------------------------
>
> Key: IGNITE-4908
> URL: https://issues.apache.org/jira/browse/IGNITE-4908
> Project: Ignite
> Issue Type: Improvement
> Components: data structures
> Affects Versions: 1.8
> Reporter: Andrew Mashenkov
> Assignee: Alexander Menshikov
> Fix For: 2.3
>
>
> 1) Lock
> Entry Processor (sync) ->
> add candidate.
> returns "added candidate at first position"
> retry failover ->
> if already at first position -> return true
> In case lock not acquired, wait for acquire (AbstractQueuedSynchronizer
> should be used).
>
> 2) Unlock
> Entry Processor (async) ->
> remove candidate at first position
> retry failover -> remove only if "candidate at first position" equals to
> expected
> listener ->
> notify current "candidate at first position" it got lock
>
> 3)Failover
> 3.1) Originating node failed
> Failed node listener ->
> For each local(primary) lock ->
> Entry Processor (async) ->
> remove candidates related no failed node
> retry failover not needed
> listener ->
> if "candidate at first position" removed ->
> notify current "candidate at first position" it got lock
>
>
> 3.2) Primary node failed
> After rebalancing schedule Callable ->
> For each local(primary) lock ->
> Entry Processor (async) ->
> remove candidates related to failed nodes
> retry failover not needed
> listener ->
> notify current "candidate at first position" it got lock
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