0002099: resin-admin (php) might show negative uptime for one server in the cluster

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Category

Severity

Reproducibility

Date Submitted

Last Update

0002099

[Resin]

text

always

10-20-07 10:28

10-24-07 10:14

Reporter

stbu

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Status

closed

Product Version

3.1.3

Summary

0002099: resin-admin (php) might show negative uptime for one server in the cluster

Description

Resin-Professional 3.1.3 in a Load-Balancing configuration

web-a Windows XP, Java 6, 192.168.1.100
app-a Windows XP, Java 6, 192.168.1.100
app-b Linux, Java 6, 192.168.1.141

see also attached resin.conf of all three involved resin instances.

web-a and app-b are both started and I'm logged into the php resin-administration. The page cluster.php is opened and shows that app-a is not available.
I've started app-a, waited until the console displayed "Resin started in 1657ms", and pressed "refreshed".

The Uptime column of app-a showed a negative uptime as you can see from the attached screenshot and the HTML of the cluster.php page at that time.

The clock of 192.168.1.141 (app-b) and 192.168.1.100 (app-a) differ by 86 seconds.
--> This should explain the negative uptime.

BUT, it might be worth about thinking that uptime formatting in cluster.php calculate the uptime of a server using the server's startup-time *and that server's current time* rather than the time of the server of the admin page.

Additional Information

Attached ZIP contains:
- php-admin_cluster__negative_uptime_format.jpg (Screenshot with negative uptime)
- php-admin_cluster__negative_uptime_format.html (HTML output of cluster.php)
- resin.conf (used resin.conf)

Attached Files

C:\\tmp\\caucho\\negative_uptime.zip [^] (169,203 bytes) 10-20-07 10:28

Relationships

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Issue History
Date Modified	Username	Field	Change
10-20-07 10:28	stbu	New Issue
10-20-07 10:28	stbu	File Added: C:\\tmp\\caucho\\negative_uptime.zip
10-20-07 10:29	stbu	Issue Monitored: stbu
10-24-07 10:14	ferg	Assigned To	=> ferg
10-24-07 10:14	ferg	Status	new => closed
10-24-07 10:14	ferg	Resolution	open => fixed
10-24-07 10:14	ferg	Fixed in Version	=> 3.1.4

Mantis 1.0.0rc3[^]

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