similar to: [PATCH 01/11] ocfs2: event-driven quorum

This patch removes disk heartbeat's modularity which makes it the default. Without this patch, userspace changes are required. This patch is not intended for permanent application, just to make it easier for users not interested in testing the userspace clustering implementation to use ocfs2. In order to switch to user clustering, use "o2cb offline" to shut down the cluster,

This patch actually frees the hb set when the cluster dir is removed. fs/ocfs2/cluster/nodemanager.c | 1 + 1 files changed, 1 insertion(+) Signed-off-by: Jeff Mahoney <jeffm at suse.com> diff -ruNpX ../dontdiff linux-2.6.16-rc4.ocfs2-staging1/fs/ocfs2/cluster/nodemanager.c linux-2.6.16-rc4.ocfs2-staging2/fs/ocfs2/cluster/nodemanager.c ---

As &qs->qs_lock is also acquired by the timer o2net_idle_timer() which executes under softirq context, code executing under process context should disable irq before acquiring the lock, otherwise deadlock could happen if the process context hold the lock then preempt by the timer. Possible deadlock scenario: o2quo_make_decision (workqueue) -> spin_lock(&qs->qs_lock);

As &qs->qs_lock is also acquired by the timer o2net_idle_timer() which executes under softirq context, code executing under process context should disable irq before acquiring the lock, otherwise deadlock could happen if the process context hold the lock then preempt by the timer. Possible deadlock scenario: o2quo_make_decision (workqueue) -> spin_lock(&qs->qs_lock);

Hi, Trying to setup Samba to use an LDAP backend. I'm also using it with NSS which is working fine for all the unix related stuff (i.e. i can finger accounts etc). When i start samba i get the following error: Sep 5 19:42:57 staging1 nmbd[30805]: [2007/09/05 19:42:57, 0] nmbd/nmbd.c:terminate(58) Sep 5 19:42:57 staging1 nmbd[30805]: Got SIGTERM: going down... Sep 5 19:42:57 staging1

I''m happy to announce that ChaCha.com a new search engine that debuted this week and it runs on a mongrel cluster. Warning, promo follows. :) ChaCha.com is unlike any other search engine since it allows you to connect to a "guide" with experience in the field(s) of knowledge you are searching in. (Based on your keywords) Check it out at http://www.chacha.com Now on to my

This patch removes the following unused EXPORT_SYMBOL_GPL's: - cluster/heartbeat.c: o2hb_check_node_heartbeating_from_callback - cluster/heartbeat.c: o2hb_stop_all_regions - cluster/nodemanager.c: o2nm_get_node_by_num - cluster/nodemanager.c: o2nm_configured_node_map - cluster/nodemanager.c: o2nm_get_node_by_ip - cluster/nodemanager.c: o2nm_node_put - cluster/nodemanager.c: o2nm_node_get -

Fix ocfs2 to use the page fragment allocator rather than kzalloc in order to allocate the buffers for the handshake message and keepalive request and reply messages. Switch from using sendpage() to using sendmsg() + MSG_SPLICE_PAGES so that sendpage can be phased out. Signed-off-by: David Howells <dhowells at redhat.com> cc: Mark Fasheh <mark at fasheh.com> cc: Joel Becker <jlbec

Fix ocfs2 to use the page fragment allocator rather than kzalloc in order to allocate the buffers for the handshake message and keepalive request and reply messages. Slab pages should not be given to sendpage, but fragments can be. Switch from using sendpage() to using sendmsg() + MSG_SPLICE_PAGES so that sendpage can be phased out. Signed-off-by: David Howells <dhowells at redhat.com>

Fix ocfs2 to use the page fragment allocator rather than kzalloc in order to allocate the buffers for the handshake message and keepalive request and reply messages. Switch from using sendpage() to using sendmsg() + MSG_SPLICE_PAGES so that sendpage can be phased out. Signed-off-by: David Howells <dhowells at redhat.com> cc: Mark Fasheh <mark at fasheh.com> cc: Joel Becker <jlbec

Fix ocfs2 to use the page fragment allocator rather than kzalloc in order to allocate the buffers for the handshake message and keepalive request and reply messages. Slab pages should not be given to sendpage, but fragments can be. Switch from using sendpage() to using sendmsg() + MSG_SPLICE_PAGES so that sendpage can be phased out. Signed-off-by: David Howells <dhowells at redhat.com>

By default, o2cb fences the box by calling emergency_restart(). While this scheme works well in production, it comes in the way during testing as it does not let the tester take stack/core dumps for analysis. This patch allows user to dynamically change the fence method to panic() by: # echo "panic" > /sys/kernel/config/cluster/<clustername>/fence_method Signed-off-by: Sunil

I have four database servers in a high-availability, load-balancing configuration. Each machine has a mount to a common data source which is an OCFS2 v1.4 file-system. While working on three of the servers, I restarted the IP network and found after-wards the fourth machine hung. I could not reboot and could not unmount the ocfs2 partitions. I am pretty sure this was all caused by my taking down

Currently, o2net connects to a node on hb_up and disconnects on hb_down and net timeout. It disconnects on net timeout is ok, but it should attempt to reconnect back. This is because sometimes nodes get overloaded enough that the network connection breaks but the disk hb does not. And if we get into that situation, we either fence (unnecessarily) or wait for its disk hb to die (and sometimes hang

Modification from V1 to V2: 1. Use atomic ops instead of spin_lock in timer. 2. Add some comments when querying connect_expired work. These comments are copied form Zach's mail.;) Currently, o2net connects to a node on hb_up and disconnects on hb_down and net timeout. It disconnects on net timeout is ok, but it should attempt to reconnect back. This is because sometimes nodes get

All, This is hopefully the final drop of the patches for adding global heartbeat to the o2cb stack. The diff from the previous set is here: http://oss.oracle.com/~smushran/global-hb-diff-2010-10-07 Implemented most of the suggestions provided by Joel and Wengang. The most important one was to activate the feature only at the end, Also, got mostly a clean run with checkpatch.pl. Sunil