[Sheepdog] [PATCH 2/4] sheep: transient failure - parameter changes

[yaohaiting.wujue at gmail.com]

From: HaiTing Yao <wujue.yht at taobao.com>

Add one parameter, user can specify the time one node leave then join
again.

-t, --templeft          specify the time(in seconds) node can leave then
join again

If do not use this parameter, the sheep works without transient failure
detection as before

Signed-off-by: HaiTing Yao <wujue.yht at taobao.com>
---
 sheep/sheep.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/sheep/sheep.c b/sheep/sheep.c
index b3b834b..63c53be 100644
--- a/sheep/sheep.c
+++ b/sheep/sheep.c
@@ -38,11 +38,12 @@ static struct option const long_options[] = {
 	{"zone", required_argument, NULL, 'z'},
 	{"vnodes", required_argument, NULL, 'v'},
 	{"cluster", required_argument, NULL, 'c'},
+	{"templeft", required_argument, NULL, 't'},
 	{"help", no_argument, NULL, 'h'},
 	{NULL, 0, NULL, 0},
 };
 
-static const char *short_options = "p:fl:dDz:v:c:h";
+static const char *short_options = "p:fl:dDz:v:c:t:h";
 
 static void usage(int status)
 {
@@ -62,6 +63,7 @@ Options:\n\
   -z, --zone              specify the zone id\n\
   -v, --vnodes            specify the number of virtual nodes\n\
   -c, --cluster           specify the cluster driver\n\
+  -t, --templeft          specify the time(in seconds) node can leave then join again\n\
   -h, --help              display this help and exit\n\
 ", PACKAGE_VERSION, program_name);
 	exit(status);
@@ -98,6 +100,8 @@ int main(int argc, char **argv)
 	char *p;
 	struct cluster_driver *cdrv;
 
+	memset(sys, 0, sizeof(struct cluster_info));
+
 	signal(SIGPIPE, SIG_IGN);
 
 	while ((ch = getopt_long(argc, argv, short_options, long_options,
@@ -165,6 +169,9 @@ int main(int argc, char **argv)
 
 			sys->cdrv_option = get_cdrv_option(sys->cdrv, optarg);
 			break;
+		case 't':
+			sys->templeft_time = atoi(optarg);
+			break;
 		case 'h':
 			usage(0);
 			break;
-- 
1.7.1