Changes between Initial Version and Version 1 of restart-failed-server

Timestamp:

Aug 3, 2010, 5:09:05 PM (14 years ago)

Author:

Jamie McClelland

Comment:

--

restart-failed-server

@@ +1 @@
+= Restart Failed Server =
+
+From time to time our virtual servers exceed their allocated memory and fail with oom (out of memory) errors. It is usually necessary to perform a hard reset of the virtual servers.
+
+How to reset a virtual server depends on the virtualization technology in use by the server.
+
+The first step is to [wiki:server_overview checkout our SVN repository of servers].
+
+Then, examine the "available-servers" directory. You should see a directory for every server we are running.
+
+Inside each directory, there's a file called "virtualization".
+
+The virtualization file will say either: vserver, xen, or kvm.
+
+In addition, there's a symlink called "host" which will point to the host server for this virtual server. For all servers, you will need to [wiki:secure_shell ssh] into the host server to perform a reset.
+
+== xen ==
+
+ * Unplug the server:
+{{{
+xm destroy <server-name>
+}}}
+ * Restart the server:
+{{{
+xm create -c <server-name>
+}}}
+
+== kvm ==
+
+ * unplug the server:
+{{{
+sv down <server-name>
+}}}
+ * restart:
+{{{
+sv up <server-name>
+}}}
+
+== vserver ==
+
+ * shutdown
+{{{
+vserver <server-name> stop
+}}}
+ * start
+{{{
+vserver <server-name> start
+}}}