If NTP fails you may have problems in your network. It should not cause ganglia to fail, it will just mean your clocks will drift (which will cause other problems). Postfix is a mail program and it should also not cause problems to ganglia.
Ganglia is a fairly simple program, there is a daemon on the client node which has to be active and able to communicate with a particular port on the server (which has two daemons, one monitor and one server processor that listens for the monitors). If Ganglia is failing, that means either the monitor daemons on the compute nodes are not running (or are not set up right) or more likely that there is a communication problem between the headnode and the compute nodes. Check and make sure the firewall on the server is off on the head node, or ganglia will not be able to receive traffic from the compute nodes. On the NTP issue, did you define an outside NTP server (outside the cluster network)? Please include your oscarinstall.log files, preferably zipped. It would help to know how you were trying to configure your cluster and some of that information is captured in the logs. On 6/21/07, Chaw Thet Zan <[EMAIL PROTECTED]> wrote: > Hi, > I do the steps you point out. But Ganglia Setup Test fail in the Test > Cluster Setup. > But I can see sometime all nodes in http://localhost/ganglia. I can't > see sometime all nodes in this page. I see only one node. > I don't think how to solve that problem. > when I reboot the clients node, I see the 2 errors : > (1) Set up Postfix fail > (2)Set up NTP fail > How can I fix these problem? Are these problems relate to Ganglia fail? > > Thank you so much for your patience attention. > chawthetzan > > On 6/19/07, Michael Edwards <[EMAIL PROTECTED]> wrote: > > ssh to the oscarnode1 and run "ps -ef | grep gmond". That will tell > > you if the ganglia monitor daemon is running on the node. > > > > if it returns nothing try running "/etc/init.d/gmond restart" on > > oscarnode1 and see if that fixes the problem. > > > > Also, make sure you have the firewall and SE Linux on the head node turned > > off. > > > > On 6/19/07, Chaw Thet Zan <[EMAIL PROTECTED]> wrote: > > > Hi > > > In my http://localhost/ganglia, I can't see only one node that is > > > server(cluster node manager). I can't see the node "oscarnode1" that > > > is created as client on the "cls" image. How can I solve these > > > problem? Error is the same as the attached file (ganglia.err) I have > > > already sent. > > > All test are passed except Ganglia Setup Test. > > > Please give me advice how can I do it? > > > Best regards, > > > ctz > > > > > > > > > On 6/17/07, Michael Edwards <[EMAIL PROTECTED]> wrote: > > > > Go to http://localhost/ganglia. If you can see all your nodes there, > > > > its not really a problem. > > > > > > > > The ganglia test fails on occasion when everything is actually working. > > > > > > > > On 6/12/07, Chaw Thet Zan <[EMAIL PROTECTED]> wrote: > > > > > Dear, > > > > > When I ran "Test Cluster Setup ", all are passed except Gangila Setup. > > > > > How do I solve this Gangila fail? I checked the > > > > > /home/oscartst/gangila/gangila.err but I don't understand clearly. > > > > > OS is RedHat Enterprise Linux 4 AS > > > > > Oscar version is 5.0 > > > > > I created one image called "cls" and I added one client oscarnode1. > > > > > Do I need to create one client image to add one client? I don't > > > > > understand it clearly. > > > > > Please .. Can you solve this problem? > > > > > > > > > > Best regards, > > > > > ctz > > > > > > > > > > > > ------------------------------------------------------------------------- > > > > > This SF.net email is sponsored by DB2 Express > > > > > Download DB2 Express C - the FREE version of DB2 express and take > > > > > control of your XML. No limits. Just data. Click to get it now. > > > > > http://sourceforge.net/powerbar/db2/ > > > > > _______________________________________________ > > > > > Oscar-users mailing list > > > > > Oscar-users@lists.sourceforge.net > > > > > https://lists.sourceforge.net/lists/listinfo/oscar-users > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------- > > > > This SF.net email is sponsored by DB2 Express > > > > Download DB2 Express C - the FREE version of DB2 express and take > > > > control of your XML. No limits. Just data. Click to get it now. > > > > http://sourceforge.net/powerbar/db2/ > > > > _______________________________________________ > > > > Oscar-users mailing list > > > > Oscar-users@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/oscar-users > > > > > > > > > > ------------------------------------------------------------------------- > > > This SF.net email is sponsored by DB2 Express > > > Download DB2 Express C - the FREE version of DB2 express and take > > > control of your XML. No limits. Just data. Click to get it now. > > > http://sourceforge.net/powerbar/db2/ > > > _______________________________________________ > > > Oscar-users mailing list > > > Oscar-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/oscar-users > > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > _______________________________________________ > > Oscar-users mailing list > > Oscar-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/oscar-users > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Oscar-users mailing list > Oscar-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/oscar-users > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Oscar-users mailing list Oscar-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oscar-users
