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Posted to dev@synapse.apache.org by "Paul Fremantle (JIRA)" <ji...@apache.org> on 2007/04/30 16:45:15 UTC
[jira] Created: (SYNAPSE-89) Failover never retries failed
endpoints
Failover never retries failed endpoints
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Key: SYNAPSE-89
URL: https://issues.apache.org/jira/browse/SYNAPSE-89
Project: Synapse
Issue Type: Improvement
Affects Versions: 1.0
Reporter: Paul Fremantle
Fix For: 1.1
Failover does not ever retry failed endpoints.
This can lead to problems in real-life scenarios. For example, imagine there is a 5 second network outage. Synapse fails all endpoints, and never retries them, so I need to reboot Synapse to get my endpoints back online.
The failover endpoint should have a retry timeout for failed endpoints. After that time it should retry them. Even better would be an exponential backoff on retries. So for example, after 1 minute it retries. If that fails it waits 2, then 4, then 8, etc.
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[jira] Resolved: (SYNAPSE-89) Failover never retries failed
endpoints
Posted by "Chathura Ekanayake (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/SYNAPSE-89?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chathura Ekanayake resolved SYNAPSE-89.
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Resolution: Fixed
Fix Version/s: (was: 1.1)
1.0-RC2-B2
Assignee: Chathura Ekanayake
There is a feature in address and wsdl endpoints to specify the time to suspend after a failure. It can be specified in the <suspendDurationOnFailure> element inside <address> and <wsdl> tags of those endpoints. After an endpoint is detected as failed, load balance and failover endpoints will not consider it as an active endpoint for the time duration specified in above tags. Once that time has elapsed, successive requests will be directed to it as if it has not failed. If it is still failing, it will be marked inactive again for the specified time duration.
I have documented this in the Synapse configuration language documentation.
> Failover never retries failed endpoints
> ---------------------------------------
>
> Key: SYNAPSE-89
> URL: https://issues.apache.org/jira/browse/SYNAPSE-89
> Project: Synapse
> Issue Type: Improvement
> Affects Versions: 1.0
> Reporter: Paul Fremantle
> Assigned To: Chathura Ekanayake
> Fix For: 1.0-RC2-B2
>
>
> Failover does not ever retry failed endpoints.
> This can lead to problems in real-life scenarios. For example, imagine there is a 5 second network outage. Synapse fails all endpoints, and never retries them, so I need to reboot Synapse to get my endpoints back online.
> The failover endpoint should have a retry timeout for failed endpoints. After that time it should retry them. Even better would be an exponential backoff on retries. So for example, after 1 minute it retries. If that fails it waits 2, then 4, then 8, etc.
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