0001195: Loadbalancer servlet give long delays when a backend server is powered off

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Category

Severity

Reproducibility

Date Submitted

Last Update

0001195

[Resin]

major

always

06-13-06 01:12

06-15-06 17:08

Reporter

jornsvendsen

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Status

closed

Product Version

3.0.18

Summary

0001195: Loadbalancer servlet give long delays when a backend server is powered off

Description

When the loadbalancing servlet is defined for load distribution to 2 other servers and one of the servers is powered off, we get unreasonable long times for serving the content.
If the powered off server is removed from the cluster definition, content is again served with no problems.

We consider finding another way to do the load distribution because a failed server makes the service useless.
I think the failing server must be marked unavailable and no live requests should be sent to it before it is verified (background task) that the server is actually up and running.

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Notes
(0001300) ferg 06-15-06 17:08	A number of changes in 3.0.20 will help in this case. client-connect-timeout - will limit the time trying to connect to a starting server client-fail-recover-time (was client-dead-time) - configures how lot to treat a dead server as dead before retrying client-slow-start-time - throttles connections for a newly started server (which also means only one request would be penalized by the connect timeout)

Issue History
Date Modified	Username	Field	Change
06-13-06 01:12	jornsvendsen	New Issue
06-15-06 17:08	ferg	Note Added: 0001300
06-15-06 17:08	ferg	Assigned To	=> ferg
06-15-06 17:08	ferg	Status	new => closed
06-15-06 17:08	ferg	Resolution	open => fixed
06-15-06 17:08	ferg	Fixed in Version	=> 3.0.20

Mantis 1.0.0rc3[^]

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