Re: Tomcat hangs on SATA Linux server
Is this just with Tomcat or does it happen with other apps too ? Chances are that your device driver may be having issues and hence slowing down the system in between. -Sameer --- Rick Fincher [EMAIL PROTECTED] wrote: Hi All, We have a web app running on Tomcat that accesses Oracle via JDBC on a Linux server (Centos 4.5) . The web app runs fine on one server but but locks up or hangs for 20-30 second periods on a Dell sever running with SATA storage. I only mention SATA because that is the only significant difference between the two servers. Anyone have a clue what is causing this? Thanks! Rick - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat hangs on SATA Linux server
How much memory is on the server? Your file buffer may be too large and your disks can not keep up. I think the default is 10% of memory, so if you can fill that up faster than the disks can write it it will hang until the buffer is emptied. I doubt you are doing that much file i/o through a webapp though! Mark Rick Fincher wrote: Hi All, We have a web app running on Tomcat that accesses Oracle via JDBC on a Linux server (Centos 4.5) . The web app runs fine on one server but but locks up or hangs for 20-30 second periods on a Dell sever running with SATA storage. I only mention SATA because that is the only significant difference between the two servers. Anyone have a clue what is causing this? Thanks! Rick - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat hangs on SATA Linux server
From: Rick Fincher [mailto:[EMAIL PROTECTED] Subject: Tomcat hangs on SATA Linux server Anyone have a clue what is causing this? Must be the day for people to leave out most relevant information. 1) What Tomcat level? 2) What JVM version? 3) What Java heap size have you specified? 4) What does JConsole show is going on during the hiccups? (Hangs are permanent, your situation recovers, so it's not a hang.) 5) What kind of GC activity is going on? 6) Are you experiencing page swapping during the hiccups? 7) What does a thread dump show during the hiccups? That's just for starters. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
