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- Log -----------------------------------------------------------------
commit ff934655dbb265150c7c9ae5e499645be26ab586
Author: David Teigland <teigland@redhat.com>
Date: Wed Jul 23 12:57:49 2008 -0500

fenced: update cman only after complete success

bz 456403

Problem discovered by Lon: tell cman about a completed fencing
operation only after all devices within a method have completed
successfully. Otherwise, if the first device succeeds, cman will
be told the node is fenced, even if the second device fails. When
fenced subsequently retries the fencing, it asks cman if fencing is
complete, and is wrongly told it is (the purpose of asking cman is
to avoid double fencing when a node is fenced externally via
fence_node). So, a failed node can be considered successfully
fenced when it hasn't been.

Signed-off-by: David Teigland <teigland@redhat.com>

-----------------------------------------------------------------------

Summary of changes:
fence/fenced/agent.c | 16 +++++++++-------
1 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/fence/fenced/agent.c b/fence/fenced/agent.c
index 86c5bde..033f447 100644
--- a/fence/fenced/agent.c
+++ b/fence/fenced/agent.c
@@ -291,10 +291,13 @@ void update_cman(char *victim, char *method)

int dispatch_fence_agent(char *victim, int force)
{
+ char good_device[256];
char *method = NULL, *device = NULL;
char *victim_nodename = NULL;
int num_methods, num_devices, m, d, error = -1, cd;

+ strcpy(good_device, "UNKNOWN");
+
if (force)
cd = ccs_force_connect(NULL, 0);
else {
@@ -322,16 +325,13 @@ int dispatch_fence_agent(char *victim, int force)
if (error == -EBADR) {
syslog(LOG_INFO, "ccs connection timed out, "
"retrying
");
-
while ((cd = ccs_connect()) < 0)
sleep(1);
-
error = get_method(cd, victim, m, &method);
-
+ }
+
if (error)
continue;
- } else if (error)
- continue;

/* if num_devices is zero we should return an error */
error = -1;
@@ -347,7 +347,7 @@ int dispatch_fence_agent(char *victim, int force)
if (error)
break;

- update_cman(victim, device);
+ strncpy(good_device, device, sizeof(good_device));
free(device);
device = NULL;
}
@@ -358,8 +358,10 @@ int dispatch_fence_agent(char *victim, int force)
free(victim_nodename);
free(method);

- if (!error)
+ if (!error) {
+ update_cman(victim, good_device);
break;
+ }
}

ccs_disconnect(cd);


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