Dear All

I try Clustering between 2 hosts using Tomcat5.
When I access one host, I would wait for a moment 
and then get following message.

----------------------------------------------------------------------------
2004/01/28 16:49:03 org.apache.catalina.cluster.tcp.SocketSender waitForAck
Warning: Wasn't able to read acknowledgement from server in 15000 ms. 
Disconnecting
 socket, and trying again.
----------------------------------------------------------------------------

What would I do for avid this warning ?
Any advise will welcome.

(Sorry bad English...)


[environment]
+ Fedora1
+ JDK 1.4_2.03
+ Tomcat 5.0.18


[p.s.]
I maybe done that get tcp socket sending between clustering servers.
because I check tcp packet sending using tcpdump.
(or anything bad? I don't know detail for these messages...)

----------------------------------------------------------------------------
[EMAIL PROTECTED] hoge]# tcpdump port 4001
tcpdump: listening on eth0
17:16:41.114593 192.168.1.21.32865 > localhost.localdomain.4001: P 1948109306:19
48109731(425) ack 2688246754 win 5840 <nop,nop,timestamp 1372911 627953> (DF)
17:16:41.154382 localhost.localdomain.4001 > 192.168.1.21.32865: . ack 425 win 7
504 <nop,nop,timestamp 630617 1372911> (DF)
17:16:56.124494 192.168.1.21.32865 > localhost.localdomain.4001: F 425:425(0) ac
k 1 win 5840 <nop,nop,timestamp 1374412 630617> (DF)
17:16:56.124669 192.168.1.21.32866 > localhost.localdomain.4001: S 1987471568:19
87471568(0) win 5840 <mss 1460,sackOK,timestamp 1374412 0,nop,wscale 0> (DF)
17:16:56.124723 localhost.localdomain.4001 > 192.168.1.21.32866: S 2731628734:27
31628734(0) ack 1987471569 win 5792 <mss 1460,sackOK,timestamp 632114 1374412,no
p,wscale 0> (DF)
17:16:56.124851 192.168.1.21.32866 > localhost.localdomain.4001: . ack 1 win 584
0 <nop,nop,timestamp 1374412 632114> (DF)
17:16:56.125052 192.168.1.21.32866 > localhost.localdomain.4001: P 1:426(425) ac
k 1 win 5840 <nop,nop,timestamp 1374412 632114> (DF)
17:16:56.125085 localhost.localdomain.4001 > 192.168.1.21.32866: . ack 426 win 6
432 <nop,nop,timestamp 632114 1374412> (DF)
17:16:56.128685 localhost.localdomain.4001 > 192.168.1.21.32866: P 1:4(3) ack 42
6 win 6432 <nop,nop,timestamp 632114 1374412> (DF)
17:16:56.128848 192.168.1.21.32866 > localhost.localdomain.4001: . ack 4 win 584
0 <nop,nop,timestamp 1374412 632114> (DF)
17:16:56.164355 localhost.localdomain.4001 > 192.168.1.21.32865: . ack 426 win 7
504 <nop,nop,timestamp 632118 1374412> (DF)
----------------------------------------------------------------------------


-------------------
Shinji Miyamoto
[EMAIL PROTECTED]


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