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Subject[PATCH 24/30] ocfs2: Update default cluster timeouts
Date
From: Sunil Mushran <sunil.mushran@oracle.com>

Lots of people are having trouble with the default timeouts, which are too
low. These new values are derived from an informal survey taken on
ocfs2-users, as well as data from bug reports. This should reduce the amount
of cluster disconnects and subsequent fencing seen during normal workloads.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
---
fs/ocfs2/cluster/heartbeat.h | 2 +-
fs/ocfs2/cluster/tcp.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/ocfs2/cluster/heartbeat.h b/fs/ocfs2/cluster/heartbeat.h
index 35397dd..e511339 100644
--- a/fs/ocfs2/cluster/heartbeat.h
+++ b/fs/ocfs2/cluster/heartbeat.h
@@ -35,7 +35,7 @@
#define O2HB_LIVE_THRESHOLD 2
/* number of equal samples to be seen as dead */
extern unsigned int o2hb_dead_threshold;
-#define O2HB_DEFAULT_DEAD_THRESHOLD 7
+#define O2HB_DEFAULT_DEAD_THRESHOLD 31
/* Otherwise MAX_WRITE_TIMEOUT will be zero... */
#define O2HB_MIN_DEAD_THRESHOLD 2
#define O2HB_MAX_WRITE_TIMEOUT_MS (O2HB_REGION_TIMEOUT_MS * (o2hb_dead_threshold - 1))
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index da880fc..f36f66a 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -60,8 +60,8 @@ typedef void (o2net_post_msg_handler_func)(int status, void *data,
/* same as hb delay, we're waiting for another node to recognize our hb */
#define O2NET_RECONNECT_DELAY_MS_DEFAULT 2000

-#define O2NET_KEEPALIVE_DELAY_MS_DEFAULT 5000
-#define O2NET_IDLE_TIMEOUT_MS_DEFAULT 10000
+#define O2NET_KEEPALIVE_DELAY_MS_DEFAULT 2000
+#define O2NET_IDLE_TIMEOUT_MS_DEFAULT 30000


/* TODO: figure this out.... */
--
1.5.3.6


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