Our preferred shared logging system is exported via the libqb library. As
a result, the corosync project no longer needs to export logsys.so and the
code can be directly included in the binary. The header file can also be
removed.
Signed-off-by: Steven Dake <sdake@redhat.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>
Currently:
- send_reserve() adds to the reserve
- msg_count_send_ok() tests ((avail - totempg_reserved) > msg_count)
So essentially we are checking to see if 2 * msg_count can fit in
the q.
So instead I am using byte_count_send_ok (size) to see if the
message will fit then calling send_reserve()
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>
To allow async cpg messages of 1M we need to:
1) increase the totem queue size 4 times
2) align the critical level to one large message free
There are a number of reasons for doing this:
We can't let cpg_mcast_joined() fail because the user will not see it
and will assume is has succeded.
The reason we are getting good performance is by providing a negative
feedback loop from the totem q to the IPC/poll system. This relies
on 4 q states low/med/high/crit. With messages of size 1M you
now have a q of size one and now go from level low to crit instantly
then back to low as messages are put on and taken off. I don't think
this is the best behaviour. By having a q size of 4 allows the system
to utilize the q better and give us time to respond to changes in
the q level.
To effectively achieve flow control with a q of size 1 would require
all the clients to request the space on the q like is done in
totempg_groups_joined_reserve() but probably in shared memory
This would take quite a bit of re-work.
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
Add a new object called totem.interface.dynamic to allow creation/deletion
of new child objects using the corosync-objctl utility:
to add new member:
linux# corosync-objctl -c totem.interface.dynamic.10-211-55-12
to delete an existing member:
linux# corosync-objctl -d totem.interface.dynamic.10-211-55-12
Corosync will dynamically add these members to the configuration and start
communicating with those nodes.
Signed-off-by: Anton Jouline <anton.jouline@cbsinteractive.com>
Reviewed-by: Steven Dake <sdake@redhat.com>
hdb has some expense and is not necessary in the totempg.so runtime. This
patch removes the dependence on hdb and instead uses a direct pointer.
Signed-off-by: Steven Dake <sdake@redhat.com>
Reviewed-by: Angus Salkeld <asalkeld@redhat.com>
This API allows totem to operate as a multithreaded library. Performance is
better without threads but some library users may only have multithreaded
systems. In the corosync case where we have removed threads, this reduces
cpu utilization by ~10% by removing about 50% of the mutex lock and unlock calls
that occur during typical operation. Since the latest corosync is nearly
thread free, there is no need for mutex operations.
Signed-off-by: Steven Dake <sdake@redhat.com>
Reviewed-by: Angus Salkeld <asalkeld@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>
+ overload - number of times client is told to try again
+ invalid_request - message contained invalid paramter, e.g. invalid size
+ msg_queue_avail - messages currently available at the Totem layer
+ msg-queue_reserved - messages currently reserved at the Totem layer
Signed-off-by: Tim Beale <tim.beale@alliedtelesis.co.nz>
Reviewed-by: Steven Dake <sdake@redhat.com>
X86 processors are able to handle unaligned memory access. Improve
performance by using that feature on i386 and x86_64 compatible
processors, and use old aligning code on different processors.
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>
The UDPU transport is useful for those deployments which can't use multicast.
UDPU works by using UDP unicast, which is fully supported by every switch
manufacturer by default and doesn't rely on a functional IGMP implementation.
An example of the UDPU transport is contained in the corosync.conf.example.udpu
file which shows a 16 node cluster. This file should be copied to each node
in the cluster and IP addresses changed as appropriate.
Amended to remove dead udpu REUSEADDR socket option.
Signed-off-by: Steven Dake <sdake@redhat.com>
indicated by being in the left list.
This has side effect of clearing the assembly buffer the next time it is
referenced from the free list. This fixes a defect that stops forward
processing of the message streams because sync fails to finish when receiving
a sync message from a restarted processor because it throws away the message.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2288 fd59a12c-fef9-0310-b244-a6a79926bd2f
most of the values in logsys.h are very useful for non logsys library
API users.
Allow to import them without sucking the whole lib.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2248 fd59a12c-fef9-0310-b244-a6a79926bd2f
Don't initialize the entire just-allocated buffer to all zeroes.
The very next lines initialize all members except "data".
* exec/totempg.c (assembly_ref): Initialize the first byte of
assembly->data to 0, just in case someone uses it as a string.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2116 fd59a12c-fef9-0310-b244-a6a79926bd2f
is possible for different nodes to be in different configurations of
throw away. This patch makes the variable instanced.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2092 fd59a12c-fef9-0310-b244-a6a79926bd2f
