Revert "LU-633 iokit: mdt-survey script for MD echo client test"

[fs/lustre-release.git] / lustre-iokit / obdfilter-survey / libecho

diff --git a/lustre-iokit/obdfilter-survey/libecho b/lustre-iokit/obdfilter-survey/libecho
index 20cc11d..e12c853 100644 (file)
--- a/lustre-iokit/obdfilter-survey/libecho
+++ b/lustre-iokit/obdfilter-survey/libecho
@@ -248,34 +248,38 @@ cleanup () {
 trap cleanup SIGHUP SIGINT SIGTERM
 
 # gets echoclient device number and attach it to the client UUID
-# 
+# Results are  returned by an echo followed by an exit
+# This must run in a subshell.
+#
 # parameter: 1. hostname
 #           2. client name, ex:- ns8:ECHO_ns8
 #           3. name of ost instances, ex:- lustre-OST0001 
 get_ec_devno () {
+    exec 8>&1 1>&2
     local host=$1
     local client_name="$2"
     local ost_name="$3"
     if [ -z "$client_name" ]; then
        if [ -z "$ost_name" ]; then
-           echo "client and ost name both null" 1>&2
-           return
+           echo "client and ost name both null"
+           exit 1
        fi
         client_name=${ost_name}_ecc
     fi
     ec=`get_devno $host echo_client $client_name`
     if [ -n "$ec" ]; then
-       echo $ec $client_name $client_name
-       return
+       echo $ec $client_name $client_name >&8
+       exit 0
     fi
     if [ -z "$ost_name" ]; then
-       echo "no echo client and ost_name not set, client: $client_name, host: $host" 1>&2
-       return
+       echo "no echo client and ost_name not set, client:" \
+            "$client_name, host: $host"
+       exit 1
     fi
     ost=`get_devno $host obdfilter $ost_name`
     if [ -z "$ost" ]; then
-       echo "OST $ost_name not setup" 1>&2
-       return
+       echo "OST $ost_name not setup"
+       exit 1
     fi
     client_name=${ost_name}_ecc
     remote_shell $host "$lctl <<EOF
@@ -284,10 +288,11 @@ get_ec_devno () {
 EOF"
     ec=`get_devno $host echo_client $client_name`
     if [ -z "$ec" ]; then
-       echo "Can't setup echo-client" 1>&2
-       return
+       echo "Can't setup echo-client"
+       exit 1
     fi
-    echo $ec $client_name 1
+    echo $ec $client_name 1 >&8
+    exit 0
 }
 
 # Create echo-clients using osc_names and osc_uuid