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Posted to dev@bookkeeper.apache.org by "Uma Maheswara Rao G (JIRA)" <ji...@apache.org> on 2012/07/03 15:55:20 UTC
[jira] [Updated] (BOOKKEEPER-325) Delay the replication of a ledger
if RW found that its last fragment is in underReplication.
[ https://issues.apache.org/jira/browse/BOOKKEEPER-325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uma Maheswara Rao G updated BOOKKEEPER-325:
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Summary: Delay the replication of a ledger if RW found that its last fragment is in underReplication. (was: Delay the replication of a ledger if RW found that its last fragment is underReplication.)
> Delay the replication of a ledger if RW found that its last fragment is in underReplication.
> --------------------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-325
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-325
> Project: Bookkeeper
> Issue Type: Sub-task
> Components: bookkeeper-client, bookkeeper-server
> Affects Versions: 4.2.0
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
>
> When RW found that ledger's last fragment is in underReplication state, then we should delay that ledger replication for some grace period. optimally we can replicate other fragments.
> The idea is, Whenever it finds the last fragement is under replicated, It can add into PendingReplication list.
> There will be a small daemon, which will check for the timeouts of this ledgers.
> Once it timed out , it will trigger the normal replication process if it is not in last fragment. Otherwise, it will fence the ledger and will trigger the replication nomally.
> see the discussion for more info:
> http://markmail.org/message/ruhhxxgvuqnjlu2s#query:+page:1+mid:f6ifo4sizulwiaem+state:results
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