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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>
sockets are created in a loop until an unused address is found.
But the unused socket fds were not closed.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Wed Apr 1 15:36:03 CEST 2015 on sn-devel-104
CID 1291643: Resource leak: leaked_handle: Handle
variable lock_fd going out of scope leaks the handle.
Fix: on failure case release handle variable lock_fd
Signed-off-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
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>
This is currently set in 2 places. One of them makes the node loading
code difficult to refactor. Also, when the surrounding code in either
place is touched then it might get broken.
This only needs to be done once at startup, not on every reload. So
do it once in a very obvious way, sacrificing a few CPU cycles for
some added clarity.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Pair-programmed-with: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit b9b9f6738fba5c32e87cb9c36b358355b444fb9b)
Currently flags are initialised in 2 places. One of them is in
ctdb_tcp_listen_automatic(), which just seems wrong. This makes the
code easier to follow by just doing it in ctdb_start_daemon().
This means that the flags are now initialised later than previously.
However, it is still done before the transport is started and before
clients can connect.
In future it might make sense to do a similar thing with setting the
PNN. However, the current optimisation is reasonably obvious...
Signed-off-by: Martin Schwenke <martin@meltin.net>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
(This used to be ctdb commit 2bbee8ac23ad5b7adf7122d8c91d5f0d54582507)
This effectively reverts d96cb02c2c24f9eabbc53d3d38e90dea49cff3e0
Signed-off-by: Martin Schwenke <martin@meltin.net>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
(This used to be ctdb commit 496387a585b2c5778c808cf02b8e1435abde4c3e)
Right now the message says it can't bind to any of the
addresses... even when there aren't any!
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 553455b386aa7848a516a921dfc14eb87c8a3fc1)
In Samba this is now called "tevent", and while we use the backwards
compatibility wrappers they don't offer EVENT_FD_AUTOCLOSE: that is now
a separate tevent_fd_set_auto_close() function.
This is based on Samba version 7f29f817fa.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 85e5e760cc91eb3157d3a88996ce474491646726)
We've been seeing "Invalid packet of length 0" errors, but we don't know
what is sending them. Add a name for each queue, and print nread.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit e6cf0e8f14f4263fbd8b995418909199924827e9)
so we can spot if there are leaks.
plug two leaks for filedescriptors related to when sending ARP fail
and one leak when we can not parse the local address during tcp connection establish
(This used to be ctdb commit ddd089810a14efe4be6e1ff3eccaa604e4913c9e)
This is used to mark nodes as being DELETED internally in ctdb
so that nodes are not renumbered if / when they are removed from the nodes file.
This is used to be able to do "ctdb reloadnodes" at runtime without
causing nodes to be renumbered.
To do this, instead of deleting a node from the nodes file, just comment it out like
1.0.0.1
#1.0.0.2
1.0.0.3
After removing 1.0.0.2 from the cluster, the remaining nodes retain their
pnn's from prior to the deletion, namely 0 and 2
Any line in the nodes file that is commented out represents a DELETED pnn
(This used to be ctdb commit 6a5e4fd7fa391206b463bb4e976502f3ac5bd343)
this simplifies the code and should close a race condition between the local recovery daemon and a remote node when flags are changing.
(This used to be ctdb commit 32d460b8469eb53145f04161a5d01166f9b5f09e)
and would complain if sa.family is AF_INET and the third argument is not exactly the size of a sockaddr_in.
We used to pass a union containing both a sockaddr_in and a sockaddr_in6 which would mean that on those platforms bind() would fail since the passed structure for AF_INET would be too big.
Thus we need to set and pass the appropriate size to bind. At the same time for thos eplatforms we can also set sin[6]_size to the expected size.
(bind() on those platforms were isurprisingly perfectly ok with sin_len was "too big")
(This used to be ctdb commit 5d3018c37179966f75183d9a98790eaaaf1d2cfc)
modify the transport methods to allow to restart individual connections
and set up destructors properly.
only tear down/set-up tcp connections to nodes removed from the cluster
or nodes added to the cluster.
Leave tcp connections to unchanged nodes connected.
make "ctdb reloadnodes" explicitely cause a recovery of the cluster once
the files have been realoaded
(This used to be ctdb commit d1057ed6de7de9f2a64d8fa012c52647e89b515b)
to the remote node that
1, we are in fact talking to a CTDB daemon
2, that IF we are talking to a ctdb daemon, it is operational.
So, we can not blindly mark the node as CONNECTED just because
we can open a TCP connection.
Instead we rely on "If we did get a KEEPALIVE from the remote node,
is is connected"
(This used to be ctdb commit 60e2cb175c449ae65793a3e1ffb60cf030a3a0d5)
CTDB_START_AS_DISABLED="yes"
and command line argument
--start-as-disabled
When set, this makes the ctdb node to always start in DISABLED mode and will thus not host any public ip addresses.
The administrator must manually "ctdb enable" the node after it has started when the administrator wants the node to start hosting public ip addresses.
Using this option it is possible to start ctdb on a node without causing any reallocation of ip addresses when it is starting. The node will still merge with the cluster and there will still be a recovery phase but the ip address allocations will not change in the cluster.
(This used to be ctdb commit b93d29f43f5306c244c887b54a77bca8a061daf2)
copy the content of the nodes structure.
this ctdb_address structure contains a pointer which is talloced hanging off the structure itself.
If we copy the content of this structure as we did in assigning to ctdb->address from nodes[i]
then if we talloc_free() the node structure we end up with a wild pointer in ctdb->address
(This used to be ctdb commit 644a7248548260d37df432979b129797750907f4)
specific instance of ctdbd should bind to. This helps when running a
"virtual" cluster on a single machine where all instcances bind to
different alias interfaces.
If --node-ip is specified, then we will only try to bind to this ip
address only. Othervise we fall back to the original method trying the
ip addresses in /etc/ctdb/nodes one by one until we find one we can bind
to.
No variable in /etc/sysconfig/ctdb added since this parameter only makes
sense in a virtual test/debug cluster.
(This used to be ctdb commit d96cb02c2c24f9eabbc53d3d38e90dea49cff3e0)
multiple public addresses spread across multiple interfaces on each
node.
this is a massive patch since we have previously made the assumtion that
we only have one public address per node.
get rid of the public_interface argument. the public addresses file
now explicitely lists which interface the address belongs to
(This used to be ctdb commit 462ebbc791e906a6b874c862defea43235597ca8)
