cluster: RHEL4 - [RGMANAGER] Resolves: #480828 - Zero-length pid files cause resource start failures

[Marek Grác]

Gitweb:        http://git.fedorahosted.org/git/cluster.git?p=cluster.git;a=commitdiff;h=0a34ebbbd5abdde5688ec2266382326dffacef14
Commit:        0a34ebbbd5abdde5688ec2266382326dffacef14
Parent:        a42cdd513637c80573fe883d5dc9ec9c207f9f1e
Author:        marx <marx@hroch.englab.brq.redhat.com>
AuthorDate:    Tue Jan 20 20:17:06 2009 +0100
Committer:     marx <marx@hroch.englab.brq.redhat.com>
CommitterDate: Tue Jan 20 20:17:06 2009 +0100

[RGMANAGER] Resolves: #480828 - Zero-length pid files cause resource start failures

---
 rgmanager/src/resources/utils/config-utils.sh |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/rgmanager/src/resources/utils/config-utils.sh b/rgmanager/src/resources/utils/config-utils.sh
index fd79d6e..67049c7 100644
--- a/rgmanager/src/resources/utils/config-utils.sh
+++ b/rgmanager/src/resources/utils/config-utils.sh
@@ -289,6 +289,14 @@ check_pid_file() {
 		return 0;
 	fi
 
+	## if PID file is empty then it should be safe to remove it
+	read pid < "$pid_file"
+	if [ -z "$pid" ]; then
+		rm $pid_file
+		ocf_log debug "PID File \"$pid_file\" Was Removed - Zero length";
+		return 0;
+	fi
+
 	if [ ! -d /proc/`cat "$pid_file"` ]; then	
 		rm "$pid_file"
 		ocf_log debug "PID File \"$pid_file\" Was Removed - PID Does Not Exist";