Added an additional parameter to specify the hostname where stats were collected if you're unable to execute this script on the host where vdbench data was collected

README.md

@@ -39,6 +39,12 @@ It is also possible to feed the stats from an existing vdbench workload provided
 cat console.foo | vdbench_graphite.sh -h server01 -p 2003 -t foo.baz 
 ```
 
+You can additonally specify the hostname of the system where vdbench stats were collected if executing this script from another host.
+
+```
+cat console.foo | vdbench_graphite.sh -h server01 -p 2003 -t foo.baz -n host.example.com
+```
+
 Installing and configuring graphite and grafana are beyond the scope of this README.  As long as there is an appropriately configured storage schema for graphite, the graphs should look good.  If you notice gaps in the graphs verify that that the "interval=" parameter in your vdbench config matches the lowest retention period in storage-schemas.conf.  The easiest configuration (and highest granularity) is "interval=1" in the vdbench config and a stanza in storage-schemas.conf like:
 
 ```
@@ -57,3 +63,4 @@ Some of the single stats will show as orange or red if thresholds are crossed.
 Accurate time on both the client machine (web browser), the graphana server, and workers is appropriate for accurate stats.  NTP is recommended. Graph rendering is done by the client browser and if the local time is off on that machine, the graphs will show as skewed in time. 
 
 The graphs are ideally setup for a single command vm with multiple workers.  It is expected that the command vm will control the execution of vdbench to the workers (ssh keys) and aggregate the stats to be fed to graphite.  There's no reason that  vdbench running indvidually on hosts (not controlled by a command) wouldn't also work, but some modification of the graphs would help.  For example, the table for IOPS could be modified to reflect the worker hostnames so each line can be clearly identified.  Also a separate line that totals all of the workers could show aggregate IOPS for all workers.  
+

vdbench_graphite.sh

@@ -1,20 +1,20 @@
 #!/bin/bash
 
 # vdbench_graphite.sh is a bash script to feed parsed vdbench output to graphite
-# 
-# Requires netcat (nc), tee, awk, graphite, and vdbench 
+#
+# Requires netcat (nc), tee, awk, graphite, and vdbench
 # http://www.oracle.com/technetwork/server-storage/vdbench-downloads-1901681.html
 #
-# To execute, simply run vdbench and pipe to this script.  By default it will send stats to graphite localhost:2003 
-# vdbench.default.[HOSTNAME].[METRIC]  There are no required options, but additional parameters can be passed to   
+# To execute, simply run vdbench and pipe to this script.  By default it will send stats to graphite localhost:2003
+# vdbench.default.[HOSTNAME].[METRIC]  There are no required options, but additional parameters can be passed to
 # change the destination host and/or port as well as a custom tag instead of using the hostname.  To implement multiple
 # custom tags simply separate the tags with periods.
 #
-# It is also possible to feed the stats from an existing vdbench workload provided stdout was written to a file. 
+# It is also possible to feed the stats from an existing vdbench workload provided stdout was written to a file.
 # Simply cat the vdbench output file and redirect to vdbench_graphite.sh the same as above.  Note: original timestamps
-# are used for the metrics so it will be necessary to look at the graph historically. 
+# are used for the metrics so it will be necessary to look at the graph historically.
 #
-# ./vdbench -f foo.vdb -o outdir.foo | vdbench_graphite.sh -h [graphite_host] -p [graphite_port] -t [graphite_tag] -o console.foo
+# ./vdbench -f foo.vdb -o outdir.foo | vdbench_graphite.sh -h [graphite_host] -p [graphite_port] -t [graphite_tag] -n [vdbench_hostname] -o console.foo
 
 
 while [[ $# > 1 ]]
@@ -24,7 +24,7 @@ key="$1"
 case $key in
     -h|--host)
     graphite_host="$2"
-    shift 
+    shift
     ;;
     -p|--port)
     graphite_port="$2"
@@ -34,43 +34,53 @@ case $key in
     tag="$2"
     shift
     ;;
+    -n|--name)
+    name=`echo "$2" | sed 's/\./_/g'`
+    ;;
     -o|--outfile)
     outfile="$2"
     ;;
     *)
-        
+
     ;;
 esac
 shift
 done
 
 echo
 
-# Assume graphite is running on localhost if not defined 
+# Assume graphite is running on localhost if not defined
 if [ -z "$graphite_host" ] ; then
     echo "Graphite host \"-h\" not defined, assuming localhost."
     graphite_host="localhost"
 fi
 
-# Addume graphite is running on port 2003 if not defined
+# Assume graphite is running on port 2003 if not defined
 if [ -z "$graphite_port" ] ; then
-    echo "Graphite port \"-p\" not defined, assuming 2003." 
+    echo "Graphite port \"-p\" not defined, assuming 2003."
     graphite_port="2003"
 fi
 
-# Check to make sure we can talk to graphite before continuing 
-#nc -z $graphite_host $graphite_port 
+# Check to make sure we can talk to graphite before continuing
+#nc -z $graphite_host $graphite_port
 
 #if [ "$?" != "0" ]; then
 #    echo "Can't communicate with graphite at $graphite_host on TCP port $graphite_port."
 #    exit
 #fi
 
-# Assign a prefix based on tag
+# Assign a prefix base using tag
 if [ -z "$tag" ]; then
-    prefix=vdbench.default.`hostname -s`
-else 
-    prefix=vdbench.$tag.`hostname -s`
+    prefix_base=vdbench.default
+else
+    prefix_base=vdbench.$tag
+fi
+
+# Assign a prefix based on name
+if [ -z "$name" ]; then
+    prefix=$prefix_base.`hostname -s`
+else
+    prefix=$prefix_base.${name}
 fi
 
 # If not outfile specified, kick overything to /dev/null
@@ -110,7 +120,7 @@ BEGIN {
 /^\s*rate/ {
     # Replace 1024**2 with sec so we can mash it from a header from the above section to get MB/sec
     gsub(/1024\*\*2/,"sec",$0)
-	
+
     # Use gsub to remove an unwanted /
     gsub(/\//,"",$0)
 
@@ -126,8 +136,8 @@ BEGIN {
 
         title1_column++
         title2_column++
-        title_column++	
-    }		
+        title_column++
+    }
 }
 
 # Search for any lines that do not have letters, assumed to be vdbench metrics
@@ -157,7 +167,7 @@ BEGIN {
             print prefix"."title_array[title_column] " " stats_array[stats_column] " " epochtime
             title_column++
             stats_column++
-        } 
+        }
     }
 }
 
@@ -170,3 +180,4 @@ wait
 
 echo
 echo "Done"
+