support multiple clusters

git-svn-id: svn+ssh://asteria.noreply.org/svn/weaselutils/trunk@485 bc3d92e2-beff-0310-a7cd-cc87d7ac0ede

2 files changed, 77 insertions, 50 deletions

diff --git a/munin/postgres-WAL-traffic b/munin/postgres-WAL-traffic
deleted file mode 100755
index 4fc78c7..0000000
--- a/munin/postgres-WAL-traffic
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/bin/bash
-
-# Copyright Peter Palfrader <peter@palfrader.org>
-#
-# Permission is hereby granted, free of charge, to any person obtaining
-# a copy of this software and associated documentation files (the
-# "Software"), to deal in the Software without restriction, including
-# without limitation the rights to use, copy, modify, merge, publish,
-# distribute, sublicense, and/or sell copies of the Software, and to
-# permit persons to whom the Software is furnished to do so, subject to
-# the following conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-if [ "$1" = "autoconf" ]; then
-  echo yes
-  exit 0
-fi
-
-if [ "$1" = "config" ]; then
-  echo 'graph_title Postgres WAL Traffic'
-  echo 'graph_args -l 0'
-  echo 'graph_vlabel bytes/min'
-  echo 'graph_info This graph shows amount of transaction log traffic'
-  echo 'walt.label WAL Traffic'
-  echo 'walt.cdef walt,60,*'
-  echo 'walt.type DERIVE'
-  echo 'walt.draw AREA'
-  exit 0
-fi
-
-
-INFO=`psql -p 5433 --no-align --command 'SELECT * FROM pg_xlogfile_name_offset(pg_current_xlog_insert_location())' --field-separator ' ' --quiet | tail -n2 | head -n1`
-
-file=`echo "$INFO" | awk '{print $1}'`
-offset=`echo "$INFO" | awk '{print $2}'`
-
-serial=`echo "$file" | cut -b 9- | sed -e s/^0*/0x/`
-
-bytes=$(( serial * 16*1024*1024 + offset ))
-echo echo "walt.value $bytes"
diff --git a/munin/postgres-WAL-traffic_ b/munin/postgres-WAL-traffic_
new file mode 100755
index 0000000..5f033db
--- /dev/null
+++ b/munin/postgres-WAL-traffic_
@@ -0,0 +1,77 @@
+#!/bin/bash
+
+# Copyright 2007, 2011 Peter Palfrader <peter@palfrader.org>
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+findconfig() {
+    local conf
+    local thisver thiscluster thisport
+    conf=${0##*postgres-WAL-traffic_}
+    if [ -z "$conf" ]; then
+        echo >&2 "Do not know for which cluster to get stats"
+        exit 1
+    fi
+
+    mycluster=$(
+        pg_lsclusters --no-header | \
+        while read thisver thiscluster thisport dummy; do
+            if [ "${thisver}_${thiscluster}" = "$conf" ] ; then
+                echo $thisport $thisver $thiscluster
+                break
+            fi
+        done
+    )
+
+    if [ -z "$mycluster" ]; then
+        echo >&2 "Did not find port for $conf"
+        exit 1
+    fi
+
+    read port ver cluster <<< "$mycluster"
+}
+
+if [ "$1" = "autoconf" ]; then
+    echo yes
+elif [ "$1" = "suggest" ]; then
+    pg_lsclusters --no-header | while read ver cluster dummy; do
+        echo "${ver}_${cluster}"
+    done
+elif [ "$1" = "config" ]; then
+    findconfig
+    echo "graph_title Postgres WAL Traffic for $cluster (pg $ver on port $port)"
+    echo 'graph_args -l 0'
+    echo 'graph_vlabel bytes/min'
+    echo 'graph_info This graph shows amount of transaction log traffic'
+    echo 'walt.label WAL Traffic'
+    echo 'walt.cdef walt,60,*'
+    echo 'walt.type DERIVE'
+    echo 'walt.draw AREA'
+else
+    findconfig
+    info=$(sudo -u postgres psql -p "$port" --no-align --command 'SELECT * FROM pg_current_xlog_insert_location()'  --tuples-only --quiet | tr -d /)
+    info="0x$info"
+    bytes="$(( $info ))"
+    echo "walt.value $bytes"
+fi
+# vim:set et:
+# vim:set ts=4:
+# vim:set shiftwidth=4: