What OS are you on, if you run redhat 9, make sure you have the LD_ASSUME_KERNEL=2.4
set. this means that the system wasn't able to read the acknowledgement that the second server got the session. Filip -----Original Message----- From: muimi admin [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 28, 2004 12:23 AM To: [EMAIL PROTECTED] Subject: Warning on Tomcat5 Clustering 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 1/27/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 1/27/2004 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
