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BUG: https://bugzilla.samba.org/show_bug.cgi?id=12392
Feature SCHED_RESET_ON_FORK is completely broken on RHEL6 and RHEL7
distributions. So do not rely on SCHED_RESET_ON_FORK for now.
This reverts commit 1be8564e55.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Tue Oct 25 11:28:28 CEST 2016 on sn-devel-144
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12157
In the AIX case, also add the close of the file.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Drop setting socket non-blocking and close-on-exec. The socket is
closed soon after. Only a single packet is sent, making it almost
impossible for it to block. Also, note that sockets aren't setup this
way for IPv6.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12157
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Occurs on an invalid line that isn't the first. Isn't really a leak
because it is allocated off mem_ctx, which should be freed by the
caller.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12110
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This avoids CTDB spending too much time processing multiple packets and
return to the event loop sooner.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This controls the maximum size of data ctdb will read from sockets at
a time.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Both of these expand to 1. However, AF_LOCAL is a Unix domain socket,
which makes no sense when reading the code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Thu May 26 11:42:46 CEST 2016 on sn-devel-144
If this fails, we want to know which states it wanted to move to. Don't do the
return before the debug.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
These controls have never been used and also they do not use the server_id
structure defined in samba. In future, similar controls can be added to
register/unregister using proper server_id structure.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11770
From man page of packet(7):
protocol is the IEEE 802.3
protocol number in network byte order. See the <linux/if_ether.h>
include file for a list of allowed protocols. When protocol is set to
htons(ETH_P_ALL), then all protocols are received.
Protocol argument was changed from network order to host order wrongly
in commit 9f8395cb7d.
Specifying "protocol" field to socket(AF_PACKET, ...) call only affects
the packets that are recevied. So use protocol = 0 when sending raw
packets.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Fri Mar 4 12:58:50 CET 2016 on sn-devel-144
This pattern is used quite a few times in the CTDB code. Many
instances use ctdb_kill() but for signal 0 this just calls kill(2)
anyway.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Since this code does not need any private structures defined in
ctdb_private.h, protocol/protocol.h should suffice.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Jeremy Allison <jra@samba.org>
This makes the function compatible with parse_debug().
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
This allows for backward compatibility with the current code where
DEBUG_ERR corresponds to "ERR".
Fix the test that relies on "ERR" instead of "ERROR".
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
This variable is used for adding a prefix to log entries from various
child processes.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
These functions are only used in the ctdb daemon code.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Nov 6 13:43:45 CET 2015 on sn-devel-104
This groups function prototypes for common client/server functions in
common/common.h and removes them from ctdb_private.h.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Instead of includes.h, include the required header files explicitly.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This groups function prototypes for system specific functions in
common/system.h and removes them from ctdb_private.h.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Attempt to make common code independent and free from ctdb_context.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Signed-off-by: Michael Adam <obnox at samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Sat Jun 27 13:20:18 CEST 2015 on sn-devel-104
Every time a nodemap is contructed the node IP addresses all need to
be parsed. This isn't very productive use of CPU.
Instead, parse each string once when the nodes file is loaded. This
results in much simpler code.
This code also removes the use of ctdb_address. Duplicating the port
is pointless without an abstraction layer around ctdb_address. If
CTDB gets an incompatible transport in the future then add an
abstraction layer.
Note that the infiniband code is not updated. Compilation of the
infiniband code is already broken. Fixing it will be a separate,
properly tested effort.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
Having it require a CTDB context stops ctdb_parse_address() from being
used in more generic code. Just use the existing talloc context for
memory allocations.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
When sending messages to clients, ctdb checks for EAGAIN error code and
schedules next write in the subsequent event loop. Using sys_write in
these places causes ctdb to loop hard till a client is able to read from
the socket. With real time scheduling, ctdb daemon spins consuming 100%
of CPU trying to write to the client sockets. This can be quite harmful
when running under VMs or machines with single CPU.
This regression was introduced when all read/write calls were replaced to
use sys_read/sys_write wrappers (c1558adeaa).
The existing code backs off in case of EAGAIN failures and waits for an
event loop to process the write again. This should give ctdb clients
a chance to get scheduled and to process the ctdb socket.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Tue Feb 24 12:29:30 CET 2015 on sn-devel-104
This was true for the daemon until commit
b4589b954e.
Defaulting to ERR in the ctdb CLI tool encourages logging notices at
ERR level, so default to NOTICE instead.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Before storing node IP address, convert into the correct abbreviated
string form for IPv6 addresses.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Put declarations into ctdb_logging.h, factor out some common code,
clean up #includes.
Remove the check so see if the 1st character of the debug level is
'-'. This is wrong, since it is trying to check for a negative
numeric debug level (which is no longer supported) and would need to
be handled in the else anyway.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Internally map them to DEBUG_ERR to limit code churn.
This reduces the unwieldy number of debug levels used by CTDB. ALERT
and CRIT aren't of much use as separate errors, since everything from
ERR up should always be logged. In future just ERR can be used.
This also improves compatibility with Samba's debug.c system priority
mapping.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
It isn't used and shouldn't be. CTDB can't make the system unusable.
Update associated test to ensure that EMERG isn't attempted. Actually
test all remaining debug levels and modernise the test a bit.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Samba's debug subsystem has changed a lot, so CTDB's logging needs
to be rewritten to be compatible.
The new debug.h/debug.c can't just be pulled in because it has some
extra dependencies into Samba's lib/util. For now, to support the
smallest possible patch, implement a minimal subset of Samba's
debug.[ch] that just supports the DEBUG_CALLBACK logtype.
Define a callback for each logging method.
Check later to see if debug_extra (or similar) can somehow be
implemented using debug classes.
The timestamp on CTDB CLI tool and test program DEBUG() output goes
away, so update the unit test code to cope.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
As far as we know, nobody uses this and it just complicates the
logging subsystem.
Remove all ringbuffer code and documentation. Update the local
daemons startup code correspondingly.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
Although configure should catch this, logging a run-time error is
better than being mystified when ctdbd silently exits.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This makes it consistent with Samba, to ease transition.
Update unit test code to link to with tdb_wrap instead of including
db_wrap.c.
There are some potential whitespace fixes in this commit that have
been ignored. CTDB's lib/tdb_wrap will be deleted after the
transition to Samba's lib/tdb_wrap, so there's no point polishing it
too much.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
debug_extra is CTDB-specific. Moving it will help with the
transitions to Samba's updated debug.[ch].
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
To avoid warnings when using --enable-developer, which uses
-Wmissing-prototypes.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Seeing these with -Wall:
../server/ctdb_call.c:1117:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
record_flags = *(uint32_t *)&c->data[c->keylen + c->datalen];
^
memcpy() seems to be the easiest way to get fix these. The
alternative would be to use unmarshalling functions.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
We really should extricate these from source3 and into some common
code. However, just copy them for now to help get rid of a lot of
warnings.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
