From 9110aa631b332b219e6a4165be8faaac8f320b66 Mon Sep 17 00:00:00 2001
From: Csaba Henk <chenk@redhat.com>
Date: Thu, 24 Sep 2015 12:30:36 +0200
Subject: [PATCH] retry mkfs.xfs until subject LV becomes available (or a time
 bound is reached)

Closes-Bug: #1499223
Change-Id: I7ede18cadad1c7a30d740ae17cab52b3b9271ce0
---
 devstack/gluster-functions.sh | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/devstack/gluster-functions.sh b/devstack/gluster-functions.sh
index 853d38b..4383d56 100755
--- a/devstack/gluster-functions.sh
+++ b/devstack/gluster-functions.sh
@@ -225,7 +225,21 @@ function _create_thin_lv_gluster_vol {
     sudo lvcreate -V $vol_size -T $GLUSTERFS_VG_NAME/$GLUSTERFS_THIN_POOL_NAME -n $vol_name
 
     # Format the LV.
-    sudo mkfs.xfs -i size=512 /dev/$GLUSTERFS_VG_NAME/$vol_name
+    local mkfs_result=0
+    for i in `seq 100`; do
+        mkfs_result=0
+        sudo mkfs.xfs -i size=512 /dev/$GLUSTERFS_VG_NAME/$vol_name || mkfs_result=$?
+        [ $mkfs_result -eq 0 ] && break
+        sleep 0.1
+    done
+    local mkfs_duration="$((i/10)).$((i%10))"
+    if [ $mkfs_result -eq 0 ]; then
+        echo "mkfs.xfs succeeded after retrying for $mkfs_duration"
+        true
+    else
+        echo "giving up on mkfs.xfs after retrying for $mkfs_duration with exit code $mkfs_result"
+        false
+    fi
 
     # Mount the filesystem
     mkdir -p $MANILA_STATE_PATH/export/$vol_name