0000107: Log write interleaving

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Category

Severity

Reproducibility

Date Submitted

Last Update

0000107

[Resin]

minor

always

04-16-05 00:00

11-30-05 14:43

Reporter

studdugie

View Status

public

Assigned To

Priority

high

Resolution

fixed

Status

closed

Product Version

3.0.13

Summary

0000107: Log write interleaving

Description

RSN-98
Under load Resin's logging subsystem will interleave log writes. Here are snippets taken from the access log of a box serving 45Mb/s of content.

[29/Mar/2005:07:00:02 -172.148.218.155 - - [29/Mar/2005:07:00:02 -0500] .....
[01/Apr/2005:00:00:02 -0524.125.72.120 - - [01/Apr/2005:00:00:02 -0500] .....

As you can see Resin has completely botched the log entries. This problem is not limited to the access log. Any type of logging that includes heavy multiple simultaneous writes to the logging subsystem results in the log write being botched. I suspect the issue is related to thread safety and I'm not sure if it's Resin that is screwing up or if it's the JRE's logging subsystem that is the root cause.

This bug is extremely unfortunate because 1) it makes it impossible for our web log analyzer to get accurate numbers about site traffic and usage and 2) in another application, we are having a hell of a time using logging as a means of aiding debugging.

Additional Information

AMD64 Operteron
Gentoo Linux 2.6.11.5

Attached Files

Relationships

Notes
(0000126) ferg 04-16-05 00:00	The debug (non-access) logging was fixed in 3.0.13. The access logging is still open.

Issue History
Date Modified	Username	Field	Change
04-16-05 00:00	studdugie	New Issue
11-30-05 00:00	administrator	Fixed in Version	=> 3.0.14
11-30-05 14:43	ferg	Status	resolved => closed

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