0003460: cluster session inconsistency

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Category

Severity

Reproducibility

Date Submitted

Last Update

0003460

[Resin]

minor

always

04-27-09 14:17

08-06-09 09:27

Reporter

ferg

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

4.0.1

Product Version

3.1.9

Product Build

Summary

0003460: cluster session inconsistency

Description

(rep by Takahiro Fukuda)

Two Resin starts.(named "App-A" and "App-B")
The following are set to both.
--------------------------------
<server id="App-A" host="192.168.0.1" port="6802"/>
<server id="App-B" host="192.168.0.2" port="6802"/>

<persistent-store type="cluster">
<init path="cluster"/>
</persistent-store>
.
.
.
<web-app xmlns="http://caucho.com/ns/resin"> [^]
<session-config>
<use-persistent-store="true"/>
</session-config>
</web-app>
--------------------------------

The following processing sequences are executed.
--------------------------------
1: Request1 is transmitted from BrowserX.
1-1: It is processed with App-A.
1-2: Execute Session#setAttribute("key", "value_1-2").

2: App-A is stopped.

3: Request2 is transmitted from BrowserX.
3-1: It is processed with App-B (Because App-A has been downed).
<== OK: It's expected
3-2: Session#getAttribute("key") returns "Value_1-2".
<== OK: It's expected
3-3: Execute Session#setAttribute("key", "value_3-3").

4. Start beginning of App-A

5: Request3 is transmitted from BrowserX.
5-1: It is processed with App-B (Because App-A is starting). <==
OK: It's expected
5-2: Session#getAttribute("key") returns "Value_3-3". <==
OK: It's expected
5-3: Execute Session#setAttribute("key", "value_5-3").

6. The start of App-A is completed.

7: Request3 is transmitted from BrowserX.
7-1: It is processed with App-A (Because the start of App-A was
completed). <== OK: It's expected
7-2: Session#getAttribute("key") returns
"Value_3-3". <== ****** NG ******
--------------------------------

In 7-2, "Value_3-3" is returned though it is necessary to return
"Value_5-3".
Is this correct operation?

It was confirmed on Resin3.1.6, 3.1.8 and 3.1.9.
(It is unconfirmed whether a similar problem occurs by Resin3.0.x)

Steps To Reproduce

Additional Information

Attached Files

Relationships

Notes
(0004117) ferg 08-06-09 09:27	The fixes require the extra startup support of 4.0.1.

Issue History
Date Modified	Username	Field	Change
04-27-09 14:17	ferg	New Issue
08-06-09 09:27	ferg	Note Added: 0004117
08-06-09 09:27	ferg	Assigned To	=> ferg
08-06-09 09:27	ferg	Status	new => closed
08-06-09 09:27	ferg	Resolution	open => fixed
08-06-09 09:27	ferg	Fixed in Version	=> 4.0.1

Mantis 1.0.0rc3[^]

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