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
Fixes rhbz#499918
Functions from ckpt library (like aCkptCheckpointOpen,
saCkptSectionIterationInitialize, ...) internally uses corosync functions
reply_receive, reply_receive_in_buf, ... This functions are included in
coroipcc.c source file and uses global static variable ipc_hdb.
Without patch, coroipcc is linked to shared library (libcoroipcc.so) AND linked
with every corosync libraries (like cpg, ....), so global variable ipc_hdb is
included not only in libcoroipcc.so, but also in libcpg.so, ...
dlm_controld has function retrieve_plocks, and whole binary is linked with
libcoroipcc and libcpg. So ipc_hdb is included TWICE (so has TWO addresses).
Main problem causing the bug was, that reply_receive uses address from one
library, and reply_receive_in_buf uses other. This confuses check of hdb_get
function.
After removing linking of coroipcc.o to cpg, and rather use of dynamic version,
(this means, there is only one instance of ipc_hdb) problem disappeared.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2203 fd59a12c-fef9-0310-b244-a6a79926bd2f
* lib/confdb.c (MIN): Define.
(confdb_write): Use new errbuf_len parameter.
Also note bugs (Chrissie confirms) that error_text is not
set in two error-return cases.
* test/testconfdb.c (do_write_tests): Update use of confdb_write.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2002 fd59a12c-fef9-0310-b244-a6a79926bd2f
* test/testquorum.c (quorum_notification_fn): Add casts to
match formats. Use unsigned formats for unsigned values.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1954 fd59a12c-fef9-0310-b244-a6a79926bd2f
- services/Makefile.am: add include search paths for config.h
- include/corosync/cs_config.h.in exports LCRSODIR and SOCKETDIR
- tools/Makefile.am: drop -D defines for dirs that are now in
cs_config.h or config.h
- configure.ac: sanitize prefix and exec_prefix paths. Export DIRS in
*config.h
- lib/Makefile.am: : drop -D defines for dirs that are now in
cs_config.h or config.h. Add rule to build lcr_ifact.o or building from
lib/ fails miserably
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1877 fd59a12c-fef9-0310-b244-a6a79926bd2f
adds a couple of new features:
- When total_votes exceeds the expected_votes value then expected_votes
is increased to that value.
- A callback can be sent to a client whenever expected_votes is changed
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1784 fd59a12c-fef9-0310-b244-a6a79926bd2f
defaults in services.c) and can load another module to do the quorum
work (eg YKD which I've made more compliant too). All the quorum code
has been removed from sync.c. quorum.c is simply a shim later for the
coroapi, the main module is in vsf_quorum.c
There are coroapi calls to query quorate status and also to get
notifications when it changes.
I've included the testquorum.lcrso module in this patch because I think
it's really helpful for testing. It sets the quorum state based on an
objdb variable, this can be set or cleared using corosync-cfgtool
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1704 fd59a12c-fef9-0310-b244-a6a79926bd2f
module doesn't provide quorum itself, merely a framework for setting and
querying it. I envisage YKD plugging into this rather than straight into
sync() eventually.
I've plugged this into the sync() routines rather than replacing them so
that quorum is itself a VSF, rather than a replacement - I'm not sure if
that is best or not. Opinions are welcome.
I've added an extra enum member to the service_handler so that we can
send IPC messages when the cluster isn't quorate. This will default to
NO (as now) but allows us to query and set quorum when we don't have it
.. a useful feature !
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1674 fd59a12c-fef9-0310-b244-a6a79926bd2f
confdb subsystems.
This is useful to provide atomic counters (ag handle numbers) for
long-running (though not persistent) connections. It's not currently
possible via confdb to atomically get a new number from objdb due to the
lack of locking. Doing it via increment operations in the IPC thread
provides enough atomicity to make it useful. Fabio has already
identified a use for these calls.
It could also provide some form of basic co-operative locking mechanism
for IPC-using processes (not direct objdb calls).
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1662 fd59a12c-fef9-0310-b244-a6a79926bd2f
Use a 2 phase "commit" operation:
1) Invoke verifyconfig that should catch the errors before the reload operation
2) Invoke reloadconfig that performs the operation and should _never_ fail
Implementation note: if step 2 fails, there is no fall back at the moment.
Fix the IPC table for confdb:
MESSAGE_REQ_CONFDB_XPATH_EVAL_EXPRESSION = 12 was added to include/ipc_confdb.h
without an associated call. Thanks Chrissie for spotting this.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1629 fd59a12c-fef9-0310-b244-a6a79926bd2f
This call causes a complete list of active groups and their
membership lists to be sent to a callback function.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1571 fd59a12c-fef9-0310-b244-a6a79926bd2f
- AMF handles a component report of injurious health.
- AMF handles saAmfHealthcheckConfirm() SA_AIS_ERR_FAILED_OPERATION
so that if it's a recent recovery ongoing amf does nothing but if it's
no immediate recovery in progress, AMF invokes the recovery action
specified by the component when the health check is started If
the individual recommendation was SA_AMF_NO_RECOMMENDATION,
then AMF uses the configured recovery action for the component
(saAmfCompRecoveryOnError). If this recommendation also is
SA_AMF_NO_RECOMMENDATION, then AMF makes a component restart or
component/SU fail over counts on the value of
saAmfCompDisableRestart and saAmfSUFailover.
- Handling of cleanup of a component and health check response hardened.
- Time supervision and check return value of clc-cli CLEANUP command.
- Handle 'recommended recovery' specified by a component in an error
report. The potential recovery action to choose
implemented is - component restart - and - node fails over.
- The attribute saAmfCompDisableRestart is now recognizable which means
that if the component specifies 'Component restart' and restart is
disabled
then the SU in which the component is contained shall fall over.
- The attribute saAmfSUFailover will not be recognized. SU will always
fail
over as a single entity.
- A component can report an error on another component than itself.
- Implementation 'Instantiation Level' according to chapter 3.9.2 in the
AMF specification.
- Implementation of the escalation levels, component restart, SU
restart, SU fail over and Node fail over.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1321 fd59a12c-fef9-0310-b244-a6a79926bd2f
One of type 'AMF invoked' and one of type 'component invoked'. testamf1.c
code got a bit restructured at the same time.
Changes in amf.conf to complement testamf1
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1274 fd59a12c-fef9-0310-b244-a6a79926bd2f
2- On Solaris, the SA components executed have no names.
3- When killing the testamf1 component, it makes the aisexec process
crash on both of my nodes.
4- max priority for RR on solaris is 59.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1247 fd59a12c-fef9-0310-b244-a6a79926bd2f
- One AMF node reads the AMF config file (IMM style)
- One AMF node syncs others AMF nodes
- One AMF object is serialized and sent as one message
- Serialization/deserialization of most objects is trivial (memcpy)
except for component and csi-attributes objects which have variable size
arrays/strings.
- Depth first AMF object tree traversal preserves relations when syncing
- Ordered lists of SUs and SIs
- Constructors/destructor per class
- Serializers/deserializers per class
- Config-change changes sync state
- Sync callbacks executes the sync
- "Use case" tracing for sync using the SYNCTRACE macro (trace6)
- Sync master is initially the winner of a timeout race and if the
master leaves the cluster, the node with the lowest node ID becomes new master.
- amf_malloc implements an AMF central malloc routine with error handling.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1200 fd59a12c-fef9-0310-b244-a6a79926bd2f
- Most runtime attributes in the inf. model calculated in runtime from
more fundamental information. (improves consistency)
- sg_assign_si can now recalculate workloads considering existing
assignments
- Logging improvements, similar to what is required as notification in
AMF spec.
- CLC-CLI INSTANTIATE now exits aisexec when it fails (should later be
sent as an NTF alarm)
- CLC-CLI CLEANUP correctly handles already terminated processes
- testamf1.c printouts removed for normal operation
- Iterator functions for SI/CSI assignments
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1108 fd59a12c-fef9-0310-b244-a6a79926bd2f
- Revised cluster start
- Includes Steven's "amf invalid write patch"
- Includes "components not started with 0.76" patch
- New timer API use backed out of AMF (temporary)
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1091 fd59a12c-fef9-0310-b244-a6a79926bd2f
model). A central header file (amf.h) keeps all the definitions and
prototypes needed.
New things apart from that:
- some doxygen html generated from AMF e.g. each file has a description
- saAmfHAStateGet() now works
- component invoked healthchecks implemented (but not tested)
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1071 fd59a12c-fef9-0310-b244-a6a79926bd2f
- Use of Distinguished Names (DN) in API and multicast messages
- CSI resassignment properly handled (by using restarting state)
- State 'setter' functions with uniform printouts
- Simple 'assign SU to host' algorithm:
- based on saAmfSUHostedByNode config attribute
- see config file for example
- Debug print runtime attributes upon user request:
$ pkill -USR2 aisexec
- Object-oriented naming of functions started (but not finished)
- testamf1.c updated with some new tests
- Minor fix in print.h and print.c
- AMF can be started on two nodes (example config file needs
modification for this)
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1058 fd59a12c-fef9-0310-b244-a6a79926bd2f
SAI-Overview-B.02.01.pdf. Other AMF changes as specified in
SAI-AIS-AMF-B.02.01.
Summary:
- SA Forum B.02 Information model for AMF
- groups.conf renamed to amf.conf
- amf.conf syntax changed heavily to follow SA Forum specs.
- AMF works when daemon.
- linux lists removed from AMF
- component cmd environment variables support
- component argv support
- multi value csi attributes
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1026 fd59a12c-fef9-0310-b244-a6a79926bd2f
This small patch (against r948) adds variable CPPFLAGS to all make rules
that compiles `.c' files into `.o' files.
This makes it possible to set CPPFLAGS on the command line as in:
$ make CPPFLAGS=-DAMFDEBUG
Editing the makefile when prototyping is then not needed.
Another reason is that some of the openais C files are built using the
implicit rule for C files (which uses CPPFLAGS). The change makes rules
consistent with the implicit rule.
It also adds a few missing files to the clean make target.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@950 fd59a12c-fef9-0310-b244-a6a79926bd2f
Checkpoint iteration is totally broken. This patch makes checkpoint iteration
work properly for multiple checkpoint iterators and now is compliant with the
specifications for the trunk version.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@948 fd59a12c-fef9-0310-b244-a6a79926bd2f
The AMF code doesn't detect invalid healthcheck keys and crashes when an
invalid healthcheck key is specified.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@946 fd59a12c-fef9-0310-b244-a6a79926bd2f
The IPC code spins in recvmsg in the library resulting in poor performance
and deadlock in the AMF service.
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@945 fd59a12c-fef9-0310-b244-a6a79926bd2f
in exec/cpg: Don't regard a process as joined until all all nodes have
received the message.
Don't send other nodes' processes in a joinlist message!
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@939 fd59a12c-fef9-0310-b244-a6a79926bd2f
