0004252: connectionpool overflow

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Category

Severity

Reproducibility

Date Submitted

Last Update

0004252

[Resin]

minor

always

10-08-10 12:17

11-16-10 10:29

Reporter

ferg

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

4.0.14

Product Version

4.0.10

Product Build

Summary

0004252: connectionpool overflow

Description

(rep by Wesley Wu)

I experienced ConnectionPool pool overflow issue again in resin 4.0.10.
>
> Some time (probably 20 minutes) after resin started, resin reported:
>
> [10-10-08 01:07:28.555] {server://*:6801-5523} [^]
> ConnectionPool[jdbc/mypool] pool overflow
> [10-10-08 01:07:28.555] {server://*:6801-5109} [^]
> ConnectionPool[jdbc/mypool] pool overflow
> [10-10-08 01:07:28.557] {server://*:6801-5435} [^]
> ConnectionPool[jdbc/mypool] pool overflow
> [10-10-08 01:07:28.557] {server://*:6801-5494} [^]
> ConnectionPool[jdbc/mypool] pool overflow
> [10-10-08 01:07:28.568] {server://*:6801-5520} [^]
> ConnectionPool[jdbc/mypool] pool overflow
> [10-10-08 01:07:28.568] {server://*:6801-5542} [^]
> ConnectionPool[jdbc/mypool] pool overflow
> [10-10-08 01:07:28.576] {server://*:6801-5633} [^]
> ConnectionPool[jdbc/mypool] pool overflow
>
> but my pool was not full at all which size was 2000.
>
> I met this before in resin 4.0.9 which caused by the alarm issue.
>
> Then I switched back to Resin 4.0.9.s100809 and everything went fine.
>

Steps To Reproduce

Additional Information

Attached Files

Relationships

Notes
(0004847) ferg 11-16-10 10:29	The "overflow" is somewhat misleading. Resin's pool throttles the number of new connections being created at any one time. If the 30s timeout occurs before that throttle, Resin will create a new connection anyway. 4.0.14 increases the throttle to 20 from the old 5.

Issue History
Date Modified	Username	Field	Change
10-08-10 12:17	ferg	New Issue
11-16-10 10:29	ferg	Note Added: 0004847
11-16-10 10:29	ferg	Assigned To	=> ferg
11-16-10 10:29	ferg	Status	new => closed
11-16-10 10:29	ferg	Resolution	open => fixed
11-16-10 10:29	ferg	Fixed in Version	=> 4.0.14

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