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From 0f9d6d107b045a1d73d8b1e6c5b974e54559de94 Mon Sep 17 00:00:00 2001
From: Jiffin Tony Thottan <jthottan@redhat.com>
Date: Mon, 28 Nov 2016 19:18:51 +0530
Subject: [PATCH 221/227] ganesha/scripts : avoid incrementing Export Id value
 for already exported volumes

Currently a volume will unexport when it stops and reexport it during volume start
using hook script. And also it increments the value for export id for each reexport.
Since a hook script is called from every node parallely which may led inconsistency
for export id value.

Upstream reference
>Change-Id: Ib9f19a3172b2ade29a3b4edc908b3267c68c0b20
>BUG: 1399186
>Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
>Reviewed-on: http://review.gluster.org/15948
>Smoke: Gluster Build System <jenkins@build.gluster.org>
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
>Reviewed-by: soumya k <skoduri@redhat.com>
>Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
>Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>

Change-Id: I2167aca1216af371c9626cd19de72446b6304303
BUG: 1398257
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/92001
Reviewed-by: Kaleb Keithley <kkeithle@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
---
 extras/hook-scripts/start/post/S31ganesha-start.sh | 42 ++++++----------------
 1 file changed, 10 insertions(+), 32 deletions(-)

diff --git a/extras/hook-scripts/start/post/S31ganesha-start.sh b/extras/hook-scripts/start/post/S31ganesha-start.sh
index 1bbeeab..0e98ec2 100755
--- a/extras/hook-scripts/start/post/S31ganesha-start.sh
+++ b/extras/hook-scripts/start/post/S31ganesha-start.sh
@@ -60,45 +60,15 @@ echo "      SecType = \"sys\";"
 echo "}"
 }
 
-#This function keeps track of export IDs and increments it with every new entry
-#Also it adds the export dynamically by sending dbus signals
+#It adds the export dynamically by sending dbus signals
 function export_add()
 {
-        count=`ls -l $GANESHA_DIR/exports/*.conf | wc -l`
-        if [ "$count" = "1" ] ;
-                then
-                EXPORT_ID=2
-        else
-        #if [ -s /var/lib/ganesha/export_removed ];
-        #               then
-        #               EXPORT_ID=`head -1 /var/lib/ganesha/export_removed`
-        #               sed -i -e "1d" /var/lib/ganesha/export_removed
-        #               else
-
-                 EXPORT_ID=`cat $GANESHA_DIR/.export_added`
-                 EXPORT_ID=EXPORT_ID+1
-        #fi
-        fi
-        echo $EXPORT_ID > $GANESHA_DIR/.export_added
-        sed -i s/Export_Id.*/"Export_Id=$EXPORT_ID;"/ \
-$GANESHA_DIR/exports/export.$VOL.conf
-        echo "%include \"$GANESHA_DIR/exports/export.$VOL.conf\"" >> $CONF1
-
         dbus-send --print-reply --system --dest=org.ganesha.nfsd \
 /org/ganesha/nfsd/ExportMgr org.ganesha.nfsd.exportmgr.AddExport \
 string:$GANESHA_DIR/exports/export.$VOL.conf string:"EXPORT(Export_Id=$EXPORT_ID)"
 
 }
 
-function start_ganesha()
-{
-        #Remove export entry from nfs-ganesha.conf
-        sed -i /$VOL.conf/d  $CONF1
-        #Create a new export entry
-        export_add $VOL
-
-}
-
 # based on src/scripts/ganeshactl/Ganesha/export_mgr.py
 function is_exported()
 {
@@ -133,9 +103,17 @@ if ganesha_enabled ${VOL} && ! is_exported ${VOL}
 then
         if [ ! -e ${GANESHA_DIR}/exports/export.${VOL}.conf ]
         then
+                #Remove export entry from nfs-ganesha.conf
+                sed -i /$VOL.conf/d  $CONF1
                 write_conf ${VOL} > ${GANESHA_DIR}/exports/export.${VOL}.conf
+                EXPORT_ID=`cat $GANESHA_DIR/.export_added`
+                EXPORT_ID=EXPORT_ID+1
+                echo $EXPORT_ID > $GANESHA_DIR/.export_added
+                sed -i s/Export_Id.*/"Export_Id=$EXPORT_ID;"/ \
+                        $GANESHA_DIR/exports/export.$VOL.conf
+                echo "%include \"$GANESHA_DIR/exports/export.$VOL.conf\"" >> $CONF1
         fi
-        start_ganesha ${VOL}
+        export_add $VOL
 fi
 
 exit 0
-- 
2.9.3