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| ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
| 0001766 | [Resin] | minor | always | 05-29-07 09:43 | 06-21-07 13:03 | ||||
| Reporter | ferg | View Status | public | ||||||
| Assigned To | ferg | ||||||||
| Priority | normal | Resolution | fixed | Platform | |||||
| Status | closed | OS | |||||||
| Projection | none | OS Version | |||||||
| ETA | none | Fixed in Version | 3.1.2 | Product Version | 3.1.1 | ||||
| Product Build | |||||||||
| Summary | 0001766: Load-Balancer detection of frozen server | ||||||||
| Description |
(rep by Kevin MacClay) We are experiencing a problem where the Resin front end load balancer is failing to detect that one of the back-end Resin instances is not processing requests. The problem is that the back-end Resin instance is accepting connections but does not actually process the request. Since the front-end LB does not mark the back-end instance down, it continues directing traffic there. Users who are directed to the ?bad? instance are frozen up. We are currently using Resin 3.0.14 for this application. I noticed Resin 3.0.20 has a ?client-connect-timeout? enhancement to the LB. But I?m not sure that this would help either since a connection can be established to the back-end instance, it just hangs after that. In addition, we would also like to create a Nagios monitoring script that would be able to notify us if a back-end instance enters this state. Do you have any recommendations on how to test whether a back-end ?srun? instance is accepting _and handling_ requests? |
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Issue History |
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| Date Modified | Username | Field | Change |
| 05-29-07 09:43 | ferg | New Issue | |
| 06-21-07 13:03 | ferg | Assigned To | => ferg |
| 06-21-07 13:03 | ferg | Status | new => closed |
| 06-21-07 13:03 | ferg | Resolution | open => fixed |
| 06-21-07 13:03 | ferg | Fixed in Version | => 3.1.2 |
| 06-21-07 13:03 | ferg | Description Updated | |
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