Changeset 2495

Timestamp:

Oct 7, 2009, 3:24:47 AM (15 years ago)

Author:

adehnert

Message:

Balance LVM requests (LP: #307361)

• Add "monocast" method to send remctl requests to exactly one

randomly-selected host.

• Send LVM requests to randomly-selected host for redundancy and load-balancing (LP: #307361).

Location:

trunk/packages/invirt-remote

Files:

• debian/changelog (modified) (1 diff)
• python/remote/__init__.py (modified) (1 diff)
• python/remote/monocast.py (added)
• server/usr/sbin/invirt-remote-lvm (added)
• server/usr/sbin/invirt-remote-proxy (modified) (4 diffs)

trunk/packages/invirt-remote/debian/changelog

@@ +1 @@
+invirt-remote (0.4.2) unstable; urgency=low
+
+  * Add "monocast" method to send remctl requests to exactly one 
+    randomly-selected host.
+  * Send LVM requests to randomly-selected host for redundancy and
+    load-balancing (LP: #307361).
+
+ -- Alex Dehnert <adehnert@mit.edu>  Wed, 07 Oct 2009 03:19:30 -0400
+
 invirt-remote (0.4.1) unstable; urgency=low
 

trunk/packages/invirt-remote/python/remote/__init__.py

@@ -1 +1 @@
 from bcast import bcast
+from monocast import monocast

trunk/packages/invirt-remote/server/usr/sbin/invirt-remote-proxy

@@ -1 @@
-#!/bin/bash
-# invoke as invirt-remote-proxy-$TYPE, with "TYPE" in the remctl sense.
+#!/bin/bash                                                                                         
+# invoke as invirt-remote-proxy-$TYPE, with "TYPE" in the remctl sense.                             
 
 klist -s || kinit -k
@@ -7 +7 @@
 case "$TYPE" in
     control )
-        MACHINE="$1"; SERVICE="$2"; shift; shift ;;
+        MACHINE="$1"; SERVICE="$2"; shift; shift ;;
     * )
-        SERVICE="$1"; shift ;;
+        SERVICE="$1"; shift ;;
 esac
 
 case "$TYPE/$SERVICE" in
     web/listvms )
-        invirt-remote-listvms "$@" ;;
+        invirt-remote-listvms "$@" ;;
     web/vnccert )
         invirt-remote-vnccert "$@" ;;
@@ -20 +20 @@
         invirt-remote-availability "$@" ;;
     web/lvcreate | web/lvremove | web/lvrename | web/lvresize )
-        if [ -f "/etc/invirt/nolvm" ]; then
-            echo "LVM operations are temporarily disabled for maintenance, sorry." >&2
-            exit 2
-        fi
-        remctl "$(invirt-getconf hosts.0.hostname)" remote "$TYPE" "$SERVICE" "$@" ;;
+        invirt-remote-lvm "$SERVICE" "$@"
+        ;;
     control/help )
         invirt-remctl-help ;;
@@ -32 +29 @@
             exit 2
         fi
-        invirt-remote-create "$SERVICE" "$MACHINE" "$@" ;;
+        invirt-remote-create "$SERVICE" "$MACHINE" "$@" ;;
     control/listhost|control/list-host )
-        invirt-remote-listhost "$MACHINE" "$@" ;;
+        invirt-remote-listhost "$MACHINE" "$@" ;;
     control/* )
-        # Everything but create must go where the VM is already running.
-        invirt-remote-control "$MACHINE" "$SERVICE" "$@" ;;
+        # Everything but create must go where the VM is already running.
+        invirt-remote-control "$MACHINE" "$SERVICE" "$@" ;;
     * )
-        echo "ERROR: invalid subcommand"
+        echo "ERROR: invalid subcommand $TYPE/$SERVICE"
         exit 34
         ;;