similar to: Newbie Question -- Override String functionality

I have a model that looks something like this: class Person < ActiveRecord::Base has_many :tasks [...] end I''d like to override/overload the append (<<) method for the tasks relational attribute such that I can perform some error checking in the context of a Person.tasks << task operation. Is there any way to do this? I wish I could do this in the context of

Dear All, I am using CentOS4 Update 3 Cluster Suite for i386 Architecture and my linux kernel version is 2.6.9-34.EL I have configured two node cluster My nodes are primary and secondary and I am using cluster to monitoring scripts During reboot or poweroff i am getting the problem is cman stop failed and I have verified the "/var/log/messages" log file and i getting the

I am trying to install the Cluster RPMS from rpm.karan.org. But since I have updated my kernel with yum, I have the wrong kernel for a couple of the packages. # rpm -i --test cman-kernel-smp-2.6.9-36.0.i686.rpm error: Failed dependencies: /lib/modules/2.6.9-11.ELsmp is needed by cman-kernel-smp-2.6.9-36.0.i686 kernel-smp = 2.6.9-11.EL is needed by cman-kernel-smp-2.6.9-36.0.i686

Hi. Today I have updated my cluster installation with the version cman-2.0.115-1 through yum update. When I have started the cman service , it fails. If I execute cman_tool debug I get the following error : [CMAN ] CMAN 2.0.115 (built Sep 16 2009 12:28:10) started aisexec: symbol lookup error: /usr/libexec/lcrso/service_cman.lcrso: undefined symbol:

I have a semi-grand plan for some changes to migrations. Mostly this is motivated by the upcoming 3.0 release and wanting to get migrations in engines working. 1. Don''t skip migrations with version numbers lower than "current". I only recently tripped over this, but apparently it''s been this way since 2.1 when we got timestamps masquerading as large/sparse

I was testing ocfs2 on a 2 node cluster set up. ocfs2-tools version is 1.6.3 ocfs2 kernel version is 2.6.36 Using cman on 2 nodes node02 dw # ping_pong -rwm /data/test.dat 3 data increment = 2 14 locks/sec node01 dw # ping_pong -rw /data/test.dat 3 data increment = 2 10 locks/sec node02 dw # ping_pong -r /data/test.dat 3 1980 locks/sec Using cman on 1 node node02 dw #

I currently have a few CentOS 5.2 based Xen clusters at different sites. These are built around a group of 3 or more Xen nodes (blades) and some sort of shared storage (FC or iSCSI) carved up by LVM and allocated to the domUs. I am "managing" the shared storage (from the dom0 perspective) using cman+clvmd, so that changes to the LVs (rename/resize/create/delete/etc) are

hi guys, we're evaluating the available clustering options to get ctdb up and running for a highly available file server. we've set up both gluster and ocfs2 both on seperate 2 node setups. ocfs2 seems to provide better throughput and iops to samba clients than does gluster and that is comparing a single node server to a ctdb clustered 2 node server. problem with ocfs2 is that i've

Hi everybody, I have tested CTDB+GFS2+CMAN under Debian. It works good but I do not understand some points. It is possible to run the CTDB defining it under services section in cluster.conf but running it on the second node shuts down the process at the first one. My CTDB configuration implies 2 active-active nodes. Does CTDB care if the node starts with clean_start="0" or

Dear All, I am new in Itanium server Installation and I have installed all the CentOS4.4 ia64 CDs and I have try to install clustersuite packages and i am getting the following error messages like error: %post(package name here) scriptlet failed, exit status 255 and error: %pre(package name here) scriptlet failed, exit status 255 problem Cluster Suite RPMS are ccs-1.0.7-0.i686.rpm

Hi Guys, I'm using centos 6.5 as guest on RHEV and rhcs for cluster web environment. The environtment : web1.example.com web2.example.com When cluster being quorum, the web1 reboots by web2. When web2 is going up, web2 reboots by web1. Does anybody know how to solving this "fence loop" ? master_wins="1" is not working properly, qdisk also. Below the cluster.conf, I

Hi all, since the last yum update cman does not start any more with the following entries in /var/log/messages: > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] Corosync > Cluster Engine ('1.4.1'): started and ready to provide service. > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] Corosync > built-in features: nss dbus rdma snmp > Jun 5

Hi all, Where i want to arrive: 1) having two storage server replicating partition with DRBD 2) exporting via GNBD from the primary server the drbd with GFS2 3) inporting the GNBD on some nodes and mount it with GFS2 Assuming no logical error are done in the last points logic this is the situation: Server 1: LogVol09, DRDB configured as /dev/drbd0 replicated to Server 2. DRBD seems to work

I thought I've installed the clustering tools, but when I attempt to run clustat, it says it doesn't exist. When I installed the suite, I ran: yum install -y GFS GFS-kernel-smp magma-plugins fence dlm dlm-kernel-smp gulm cman cman-kernel-smp CCSD is running and when I "cat /proc/cluster/nodes", I see my three nodes. Does anyone see the package that I missed for

hello, i opened a bug on the ocfs2 bugzilla reporting difficulty i have utilize a different cluster stack than o2cb. link: http://oss.oracle.com/bugzilla/show_bug.cgi?id=1325 to summarize i'd like to use ocfs2 on an ubuntu server with drbd and ctdb. ctdb requires fcntl locks for its lock files. however o2cb doesn't provide that functionality whereas cman (redhat's cluster manager

Im making forum and i have problem with paths. Here is code: http://pastie.caboo.se/6389 With this code, it works. But its a bit weird to use so many paths function. For every path i need to make new function. So can you suggest me something. Tables are like here: http://wiki.rubyonrails.com/rails/pages/ForumExample -- Posted via http://www.ruby-forum.com/.

Hi, Is there an easy way to test if a substring exists in a string? I''m using this check: if mystring.index(substring) > 0 but it doesn''t seem to be working.... Thanks! -- Posted via http://www.ruby-forum.com/.

Hi all, I was informed[1] that gfs & rhcs packages are in the works but that there are some problems with the code. What are these problems? Can we do anything to help test / solve them? [1] http://www.karan.org/blog/index.php/2005/07/25/everyone_loves_a_cluster_as_do_i -- Jure Pe?ar http://jure.pecar.org

My apologies if this is a stupid question, but I'm not familiar with how kernel updates and kernel modules interact. I see that there are some kernel updates available via yum: ============================================================================ = Package Arch Version Repository Size

Hello, I have the usual Categories and Products table scenario, mediated by a Categories_Products join table. When I create a new Product and into a given Category, I notice that my join table is not being populated. Shouldn''t the join Categories_Products table be populated? Thanks, gk -- Posted via http://www.ruby-forum.com/.