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From "Karl Wright (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CONNECTORS-13) We should move to eliminate process synchronization via shared file system, and use a process/service instead
Date Thu, 01 Sep 2011 11:30:16 GMT

     [ https://issues.apache.org/jira/browse/CONNECTORS-13?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karl Wright updated CONNECTORS-13:
----------------------------------

     Affects Version/s: ManifoldCF 0.1
                        ManifoldCF 0.2
         Fix Version/s: ManifoldCF next
    Remaining Estimate:     (was: 168h)
     Original Estimate:     (was: 168h)

> We should move to eliminate process synchronization via shared file system, and use a
process/service instead
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: CONNECTORS-13
>                 URL: https://issues.apache.org/jira/browse/CONNECTORS-13
>             Project: ManifoldCF
>          Issue Type: Improvement
>          Components: Framework core
>    Affects Versions: ManifoldCF 0.1, ManifoldCF 0.2
>            Reporter: Karl Wright
>             Fix For: ManifoldCF next
>
>
> The current implementation relies on the file system to synchronize activity between
various LCF processes.  This has several downsides: first, it is possible to get the file
system into a state that is corrupted (by killing processes); second, this limits the future
ability to spread crawler workload over multiple machines.
> It should be reasonably straightforward, and probably more resilient, to introduce a
"synchronization process", which all other LCF processes talk to in order to manage locks,
shared data, and other synchronization activities.

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