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Posted to dev@synapse.apache.org by "Asankha C. Perera (JIRA)" <ji...@apache.org> on 2008/10/08 04:05:44 UTC
[jira] Resolved: (SYNAPSE-466) Dynamic setup of
suspendDurationOnFailure
[ https://issues.apache.org/jira/browse/SYNAPSE-466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Asankha C. Perera resolved SYNAPSE-466.
---------------------------------------
Resolution: Fixed
Fixed on trunk, with the new Endpoint syntax being:
<endpoint name="jmxName">
<address uri="endpoint address" [format="soap11|soap12|pox|get"] [optimize="mtom|swa"]
[encoding="charset encoding"]
[statistics="enable|disable"] [trace="enable|disable"]>
<enableRM [policy="key"]/>?
<enableSec [policy="key"]/>?
<enableAddressing [version="final|submission"] [separateListener="true|false"]/>?
<timeout>
<duration>timeout duration in milli-seconds</duration>
<action>discard|fault</action>
</timeout>?
<markForSuspension>
[<errorCodes>xxx,yyy</errorCodes>]
<retriesBeforeSuspension>m</retriesBeforeSuspension>
<retryDelay>d</retryDelay>
</markForSuspension>
<suspendOnFailure>
[<errorCodes>xxx,yyy</errorCodes>]
<initialDuration>n</initialDuration>
<progressionFactor>r</progressionFactor>
<maximumDuration>l</maximumDuration>
</suspendOnFailure>
</address>
</endpoint>
Documentation and samples to follow
> Dynamic setup of suspendDurationOnFailure
> -----------------------------------------
>
> Key: SYNAPSE-466
> URL: https://issues.apache.org/jira/browse/SYNAPSE-466
> Project: Synapse
> Issue Type: Improvement
> Components: Endpoints
> Affects Versions: 1.2
> Reporter: Eric Hubert
> Assignee: Asankha C. Perera
> Fix For: 1.3
>
>
> The suspendDurationOnFailure must be a dynamic value which shall start with an initial (normally small) value, which then increases proportionally after each subsequent failed try. After a successful try the try-counter will be reset. An optional max value shall limit the maximum amount between subsequent checks.
> Implementation idea:
> The suspendDurationOnFailure shall be implemented as a geometric series:
> d = d * q <=> d
> n+1 n n+1
> -------------
> d
> n
> With a configurable value d1 for the duration after the first failed try, an optional configurable quotient q to specify "the level of over proportionality"(default 3?) and an optional maximal limit of dn (default no limit).
> Additionally, it should be possible to specify a set of error conditions which at once would move the endpoint into suspension.
> A temporary error (such as a connection timeout or close) should be able to mark the endpoint for suspension, with a fixed number of retries and a corresponding delay. After the retries expires, the endpoint would be suspended. Again, it should be possible to specify the error conditions, which would mark the endpoint for suspension
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