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Commit Graph

118 Commits

Author SHA1 Message Date
Amitay Isaacs
12fa8ed0cd ctdb-tcp: Coverity fixes
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
2013-11-19 17:13:06 +01:00
Amitay Isaacs
c393c8027f tcp: Create socket lock in /var/run/ctdb instead of /tmp
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Pair-programmed-with: Martin Schwenke <martin@meltin.net>

(This used to be ctdb commit b9b9f6738fba5c32e87cb9c36b358355b444fb9b)
2013-10-25 12:06:06 +11:00
Sumit Bose
157f1cfefd Fixes for various issues found by Coverity
Signed-off-by: Amitay Isaacs <amitay@gmail.com>

(This used to be ctdb commit 05bfdbbd0d4abdfbcf28e3930086723508b35952)
2013-07-11 15:16:55 +10:00
Mathieu Parent
d82b9ae410 build: Fix tdb.h path to enable building with system TDB library
(This used to be ctdb commit f8bf99de3a5f56be67aaa67ed836458b1cf73e86)
2013-06-14 16:45:27 +10:00
Martin Schwenke
6fbd3ea2c2 ctdbd: Initialise the node flags in just one place
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)
2013-01-07 10:35:39 +11:00
Martin Schwenke
80a2bb84e7 ctdbd: Remove debug option --node-ip, use --listen instead
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)
2013-01-07 10:35:39 +11:00
Martin Schwenke
3c5374a5c2 ctdbd: Log a meaningful message if the nodes file/list is empty
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)
2012-07-26 22:10:54 +10:00
Ronnie Sahlberg
dfdec4a07c We dont need to serialize the "probe which address this node is" if we have given an explicit --node-ip on the commandline
(This used to be ctdb commit e3dc5bd3f1ef1f0ed08f57a5b5bafcac936e9ed0)
2012-05-10 17:42:06 +10:00
Amitay Isaacs
4392591555 Remove explicit include of lib/tevent/tevent.h.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>

(This used to be ctdb commit 0681014ca5ed2a9b56f63fdace7f894beccf8a9a)
2012-04-13 17:28:14 +10:00
Rusty Russell
f93440c4b7 event: Update events to latest Samba version 0.9.8
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)
2010-08-18 09:16:31 +09:30
Rusty Russell
7061ceffd8 Report client for queue errors.
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)
2010-07-01 23:08:49 +10:00
Ronnie Sahlberg
d7c00d8d7e Drop the debug level for logging fd creation to DEBUG_DEBUG
(This used to be ctdb commit eae1d4f9e52e73b4d8769868fffdafa590d03784)
2010-02-04 06:37:41 +11:00
Stefan Metzmacher
ee97e2676d tcp: don't log an error when we succefully bind to the desired address
metze

(This used to be ctdb commit 752a9c81de97be509de7e7feddde749cc5ee22a8)
2009-10-26 14:20:23 +11:00
Ronnie Sahlberg
a92ba7f729 lower the debug levels for the "create FD messages" so we dont fill up the logs.
(This used to be ctdb commit 87146db2769c2ec494813685bf9cec0d2a6336c3)
2009-10-21 15:26:24 +11:00
Ronnie Sahlberg
9de3652380 add logging everytime we create a filedescriptor in the main ctdb daemon
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)
2009-10-15 11:24:54 +11:00
Ronnie Sahlberg
66c8d4fb3d make it possible to start the daemon in STOPPED mode
(This used to be ctdb commit 866aa995dc029db6e510060e9e95a8ca149094ac)
2009-07-09 11:57:20 +10:00
Ronnie Sahlberg
e6170b5389 add a new node state : DELETED.
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)
2009-06-01 14:18:34 +10:00
Ronnie Sahlberg
7265c713db we need to set the port properly in the parse_ip helper
(This used to be ctdb commit 43fe18d86995744ba61c7a6405b70edcb265930a)
2009-03-24 13:45:11 +11:00
Ronnie Sahlberg
869941c0cf From C Cowan, AIX needs to set sockaddr.sa_len to a consistent value for
the address type used or the connect() call will fail.

(This used to be ctdb commit d416c0e1e57a42f7ab52de903dbd8b5e111decfe)
2009-03-16 09:21:24 +11:00
Michael Adam
3cca0f75e4 Fix treatment of link local ipv6 addresses: set the scope id.
metze / Michael

Signed-off-by: Michael Adam <obnox@samba.org>

(This used to be ctdb commit 9d12de1ca6107801dada927729e755c0949d73bf)
2009-01-19 22:50:53 +01:00
root
e54347fa4e redo and update how we synchronize flags across the cluster.
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)
2008-12-05 16:32:30 +11:00
root
bf67153402 some platforms are very picky about the third argument passed to bind().
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)
2008-12-05 10:33:38 +11:00
Ronnie Sahlberg
edb7241c05 redesign how reloadnodes is implemented.
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)
2008-12-02 13:26:30 +11:00
Ronnie Sahlberg
ef997d344f initial ipv6 patch
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>

(This used to be ctdb commit 1f131f21386f428bbbbb29098d56c2f64596583b)
2008-08-19 14:58:29 +10:00
Ronnie Sahlberg
66919db3d7 We can not assume that just because we could complete a TCP handshake
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)
2008-07-18 10:59:34 +10:00
Ronnie Sahlberg
f8dadebbcf Use DEBUG_ERR and not DEBUG_WARNING when we get a connection
attempt from a non-ctdb host

(This used to be ctdb commit 40c7a536c6b428caef7904a1de860d82a70748af)
2008-05-06 07:57:43 +10:00
Ronnie Sahlberg
f3b474cffb Add debug output to indicate why a node starts up in DISABLED state
(This used to be ctdb commit 8df75775966ead36e1073896fedeff674a6e0587)
2008-02-22 09:52:57 +11:00
Ronnie Sahlberg
39539f6044 Add a new parameter to /etc/sysconfig/ctdb
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)
2008-02-22 09:42:52 +11:00
Ronnie Sahlberg
87b38e01b2 the ctdb structure must make its own copy of the ->address field and not just
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)
2008-02-19 14:35:15 +11:00
Andrew Tridgell
f6e53f433b merge from ronnie
(This used to be ctdb commit e7b57d38cf7255be823a223cf15b7526285b4f1c)
2008-02-04 20:07:15 +11:00
Andrew Tridgell
9d6ac0cf55 added debug constants to allow for better mapping to syslog levels
(This used to be ctdb commit 7ba8f1dde318eab03f4257e5a89fd23e7281e502)
2008-02-04 17:44:24 +11:00
Ronnie Sahlberg
9e73dc87cc Add a --node-ip argument so that one can specify which ip address a
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)
2007-11-26 10:52:55 +11:00
Andrew Tridgell
8e22bca5ca fixed a double close of a socket, leading to an EPOLL error
(This used to be ctdb commit bbe8ad842bdfedd37ef14a6be07ad939113fe9b1)
2007-10-22 16:41:11 +10:00
Andrew Tridgell
2d8afd85d5 another place where we need to mark connect_fde as freed
(This used to be ctdb commit d047fbeafebe4b150602f9a91802795659058b16)
2007-10-22 15:13:32 +10:00
Andrew Tridgell
f09537e7f1 prevent a double free
(This used to be ctdb commit 5a1b923abb36c6deb99ae178fdd54f12235dc309)
2007-10-22 14:07:35 +10:00
Ronnie Sahlberg
eb4cf6a686 change ctdb->vnn to ctdb->pnn
(This used to be ctdb commit 8c776e5707e503ec6586aae39ac6b3ea5a2fd2bc)
2007-09-04 10:06:36 +10:00
Ronnie Sahlberg
12ebb74838 change how we do public addresses and takeover so that we can have
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)
2007-09-04 09:50:07 +10:00
Andrew Tridgell
32de198fd3 update lib/replace from samba4
(This used to be ctdb commit f0555484105668c01c21f56322992e752e831109)
2007-07-10 15:29:31 +10:00
Ronnie Sahlberg
027d40a5ee rename tnode->queue to tnode->out_queue to indicate this queue is for
sending data out to the other node

(This used to be ctdb commit 0bc949c529094570da56c9007ff96b1f5ad02c59)
2007-07-02 14:26:50 +10:00
Ronnie Sahlberg
3a71dcf505 when accepting an incoming connection, verify that the source address is
from one of the configured nodes and reject the connection othervise

(This used to be ctdb commit ef290a6340eb1a1c0ae60c74b38c93396e388f73)
2007-07-02 14:10:20 +10:00
Andrew Tridgell
2ed57a9ae1 implement a scheme where nodes are banned if they continuously caused the cluster
to start a recovery session. The node is banned from the cluster for the RecoveryBanPeriod (default of 5 minutes)

(This used to be ctdb commit 4ad43dd07f526b6002477177fbf55483246c2c0c)
2007-06-07 15:18:55 +10:00
Andrew Tridgell
5e5701a7b8 - make calling of recovered event script async
- shutdown sockets before calling shutdown script

(This used to be ctdb commit c5e099feef94a014a77742b6cc1d0afe78ef9da9)
2007-06-02 08:41:19 +10:00
Andrew Tridgell
bf3b740a1b ctdb is GPL not LGPL
(This used to be ctdb commit 8624378010d1c2a1438e1e701339dfba7276f960)
2007-05-31 13:50:53 +10:00
Andrew Tridgell
1e72af9c51 close sockets when we exec scripts
(This used to be ctdb commit 0fac2164db4279db2d7d376a34be05b890304087)
2007-05-30 15:43:25 +10:00
Andrew Tridgell
07ade57802 make sure we find out about new nodes as fast as possible
(This used to be ctdb commit 73f2c77166e2053625d0f76c370cf7e789a63fdf)
2007-05-25 22:07:45 +10:00
Andrew Tridgell
20d96ad5c5 enable TCP keepalives
(This used to be ctdb commit a44f760f6260359201d8431d2f1267af2bc6b1b1)
2007-05-15 18:40:56 +10:00
Andrew Tridgell
527b2352ac fixed two more places where we don't correctly handle write errors on sockets
(This used to be ctdb commit f4a71bb63e7f75d21b66f9eaeac997c2029cd146)
2007-05-15 14:08:58 +10:00
Andrew Tridgell
67f5601bef fixed a fd close error on reconnect
(This used to be ctdb commit 240651a6f67f914b06e273696cef6180d788221e)
2007-05-15 10:33:28 +10:00
Andrew Tridgell
7d3870d41f AIX needs sin_len field for bind()
(This used to be ctdb commit cd6c35d4aa4f4a4cfeedf6902cda84e43d7aeba4)
2007-05-15 09:42:52 +10:00
Andrew Tridgell
2dc24c7d56 added a hopcount in ctdb_call
(This used to be ctdb commit 36d838801a2a2008c50322cdbfff65a308b1cd1a)
2007-05-01 13:25:02 +10:00
Andrew Tridgell
5b8c4bba5a auto-determine listen address by attempting to bind to each address in the cluster in turn
(This used to be ctdb commit 2fab9f96df2e5b5c51c860fd65caf0e926a63e34)
2007-05-01 06:34:55 +10:00
Andrew Tridgell
fb84d56b1b make sure we notify ctdb when a node dies
(This used to be ctdb commit 598feb4fb9badcf329837965ad39e0f0dfe28498)
2007-04-17 19:41:29 +10:00
Andrew Tridgell
65cdf2297a private -> private_data for samba3
(This used to be ctdb commit 080b6901173afb2ad618dd0621876ff478c7d6e5)
2007-04-13 20:38:24 +10:00
Volker Lendecke
d8dd8fbe49 Rename "private" to "private_data"
(This used to be ctdb commit 78cf4443ac0c66fb750ef6919bcdec189ac219c9)
2007-04-11 20:12:15 +02:00
Andrew Tridgell
902967249c fix the queueing for partially connected tcp sockets
(This used to be ctdb commit 55f1c2442a53a547302669a4fdd0f1c1deeed930)
2007-04-10 20:48:31 +10:00
Andrew Tridgell
5861917468 make some functions static, and remove an unused structure
(This used to be ctdb commit 8d09cac96b2c604a68e4903346cc9db3a66d80da)
2007-04-10 19:40:29 +10:00
Andrew Tridgell
f1e0174e83 made all sockets handle partial IO
abstract IO via ctdb_queue_*() functions

(This used to be ctdb commit 636ae76f4632b29231db87be32c9114f58b37840)
2007-04-10 19:33:21 +10:00
Ronnie sahlberg
a25554be50 When we create a tcp connection to a remote ctdb node do an explicit bind() to set our source side to the same ip address as we use to listen to ctdb traffic.
We need this since there is no guarantee that INADDR_ANY (which would be defaulted to if we dont bind) would be routable from the remote host.
This is entirely possible to happen since CTDB traffic is likely to be isolated to a private non-routable network.

(This used to be ctdb commit e0743d2f84ca0088734c912e210deb93a6b78860)
2007-04-06 09:08:41 +10:00
Andrew Tridgell
f49c93f96b added --num-msgs option
added TCP_NODELAY on tcp sockets

(This used to be ctdb commit fa76cff388237adea98c2be0827c54334080256a)
2007-02-20 14:57:13 +11:00
Andrew Tridgell
ed6d9d0606 support hostnames for node names
(This used to be ctdb commit 5c45b51ec42cdbadce7870b47b765a79d8d41b8b)
2007-02-20 13:22:18 +11:00
Andrew Tridgell
16d2ca6fa0 merge fixes from samba4
(This used to be ctdb commit fb90a5424348d0b6ed9a1b8da4ceadcc4d1a1cb1)
2007-01-23 11:38:45 +11:00
Andrew Tridgell
6dbaa5abfc simple ctdb benchmark
(This used to be ctdb commit eb80fd212472fe3b111dabe7adf6dd507fe3656a)
2006-12-19 16:27:03 +11:00
Andrew Tridgell
3c097c9a5f added handling of partial packet reads
added transport level packet allocator, allowing the transport to
enforce alignment or special memory rules

(This used to be ctdb commit 50304a5c4d8d640732678eeed793857334ca5ec1)
2006-12-19 12:03:10 +11:00
Andrew Tridgell
35a627cc32 queue up packets to nodes that aren't connected yet. This avoids a
startup race condition in the test suite

(This used to be ctdb commit b623ac755de843a3386a7c0e882d651b7f20d482)
2006-12-01 15:54:15 +11:00
Andrew Tridgell
ec5d2ddd8e - added ctdb_set_flags() call
- added --self-connect option to ctdb_test, allowing testing when a
  node connects to itself. not as efficient as local bypass, but very
  useful for testing purposes (easier to work with 1 task in gdb than
  2)

- split the ctdb_call() into an async triple, in the style of Samba4
  async functions. So we now have ctdb_call_send(), ctdb_call_recv()
  and ctdb_call().

- added the main ctdb_call protocol logic. No error checking yet, but
  seems to work for simple cases

- ensure we initialise the length argument to getsockopt()

(This used to be ctdb commit 95fad717ef5ab93be3603aa11d2878876fe868d3)
2006-12-01 15:45:24 +11:00
Andrew Tridgell
fdb317facf - added simple (fake) vnn system
- split up ctdb layer code into 3 modules

- added a simple test suite

- added packet structures for ctdb_call

- switched to an array for ctdb_node to make vnn lookup easy and fast

(This used to be ctdb commit 8a17460a816a5970f2df8244a06aec55d814f186)
2006-11-28 17:56:10 +11:00
Andrew Tridgell
5d0ba69e06 - setup a convenience name field for nodes
- added basic IO handling for the tcp backend

- added a ctdb_node_dead upcall

- added packet queueing

- adding incoming packet handling

(This used to be ctdb commit 415497c952630e746e8cdcf8e1e2a7b2ac3e51fb)
2006-11-28 14:15:46 +11:00
Andrew Tridgell
5b06e73fb1 - split up tcp functions into more logical parts
- added upcall methods from transport to ctdb layer

(This used to be ctdb commit 59f0dab652000f1c755e59567b03cf84dad7e954)
2006-11-28 11:51:33 +11:00