corosync internal theory of operation is that without a quorum provider
the cluster is always quorate. This is fine for membership free clusters
but it does pose a problem for applications that need membership and
"real" quorum.
this change add quorum_type to quorum_initialize call to return QUORUM_FREE
or QUORUM_SET. Applications can then make their own decisions to error out
or continue operating.
The only other way to know if a quorum provider is enabled/configured is
to poke at confdb/objdb, but adds an unnecessary burden to applications
that really don't need to use an entire library for a boolean value.
Reviewed-by: Steven Dake <sdake@redhat.com>
Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>
IPC: return 0/-ENOBUFS from message handler
IPC: use the new rate_limit API to improve perf.
CPG: add send_async API & hook up flow control
IPC: Fix flow control getting stuck.
IPC: Port the remaining libs to use libqb IPC
IPC: remove libqb flowcontrol API
TEST: put cpg_dispatch() in it's own thread
IPC: cleanup ipc_glue.c name everything cs_ipcs_*()
IPC: add back statistics
IPC: remove coroipcc_ symbols from lib*.versions
IPC: init each se's IPC as it is loaded.
IPC: use the new connection_closed() event to free the context.
IPC: re-add zero copy functionality back
IPC: remove cpg_mcast_joined_async() and make it the default
-> now cpg_mcast_joined() == cpg_mcast_joined_async()
libqb: expose a libqb error converter
libqb: add missing error conversions
libqb: remove repeat try loop in lib/cpg.c
CPG: fix zero copy mcast
CPG: use newer return codes
Add ENOTCONN to qb_to_cs_error()
libqb: fix error conversion from errno to cs_error_t in confdb
libqb: change errno_to_cs to qb_to_cs_error
libqb: add a cs_strerror() to get a more meaningful message
libqb: fix some confusing error conversions.
libqb: set the timeout on recv's to -1 (wait forever)
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>
- timestamps -> uint64_t and in nanosecs
- use clock_gettime
- common object naming
- common state names
- timeouts in milliseconds
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@3054 fd59a12c-fef9-0310-b244-a6a79926bd2f
Patch add support for Confdb integration with SAM. It's now possible to
use SAM_RECOVERY_POLICY_CONFDB as flag to previous policies.
Also new function sam_mark_failed is added for ability to use RECOVERY
policy together with confdb and get expected results (specially with
integration with corosync watchdog)
Patch also makes SAM thread safe.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@3050 fd59a12c-fef9-0310-b244-a6a79926bd2f
Patch adds integration of SAM and quorum, so it's now possible to use
SAM_RECOVERY_POLICY_QUORUM_QUIT or SAM_RECOVERY_POLICY_QUORUM_RESTART
recovery policy. With these policies, sam_start will block until
corosync is quorate. If quorum is lost during health checking, recovery
action is taken.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2822 fd59a12c-fef9-0310-b244-a6a79926bd2f
Patch fixes situation, when user want to change warn signal after
call of sam_register function. This was not possible, because parent
process never got new value from child.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2821 fd59a12c-fef9-0310-b244-a6a79926bd2f
Ability to in-memory storing of user data which survives between
instances of process.
Also ability needed ability for bi-directional communication between
child and parent is added.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2769 fd59a12c-fef9-0310-b244-a6a79926bd2f
The SAM library provide a tool to check the health
of an application. The main purpose of SAM is to restart
a local process when it fails to respond to a healthcheck
request in a configured time interval.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2570 fd59a12c-fef9-0310-b244-a6a79926bd2f
