0000334: apache1 keepalives broken by JNI extensions

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Category

Severity

Reproducibility

Date Submitted

Last Update

0000334

[Resin]

minor

always

08-02-05 00:00

11-30-05 14:42

Reporter

user333

View Status

public

Assigned To

Priority

normal

Resolution

fixed

Status

closed

Product Version

3.0.14

Summary

0000334: apache1 keepalives broken by JNI extensions

Description

RSN-378
When the JNI extension (libresin_os.so) is being used, apache1 mod_caucho connections are being closed immediately after each request, ignoring any keepalive and client-live-time configuration. This has rendered Resin 3 unusable on high-load servers routing requests through apache1.

I devised a simple test to confirm that connections are being closed immediately: I make 100 synchronous requests to Apache 1.3 (with MaxClients 4). With my previous Resin 2 setup, 4 connections are ESTABLISHED and reused between the apache processes and Resin. With Resin 3, I get 100 closed (TIME_WAIT) connections (between mod_caucho and Resin, not counting the closed apache request connections).

I have tried tweaking several parameters including keepalive-max, keepalive-timeout (which appears to be ignored in the source code), client-live-time, and client-read-timeout, with no luck. When I removed libresin_os.so from Resin's LD_LIBRARY_PATH, connections behave as they did with Resin 2.

Additional Information

Solaris 8 (sparc), java 1.4.2_05 and java 1.5.0_04

Attached Files

Relationships

Notes
(0000380) ferg 08-02-05 00:00	The configuration updates were closing the sockets automatically instead of reusing them.

Issue History
Date Modified	Username	Field	Change
08-02-05 00:00	user333	New Issue
11-30-05 00:00	administrator	Fixed in Version	=> 3.0.15
11-30-05 14:42	ferg	Status	resolved => closed

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