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This is Stefan Metzmacher <metze@samba.org>'s patch with minor changes:
1) Use the TDB_MAGIC constant so both hashes aren't of strings.
2) Check the hash in tdb_check (paranoia, really).
3) Additional check in the (unlikely!) case where both examples hash to 0.
4) Cosmetic changes to var names and complaint message.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 63c582c99128c3623e270e8425966cab7744fb2f)
We must not endian-convert the magic string, just the rest.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 525390863ad39acea08ceb88531dc59d118fcad4)
Commit bc1c82ea13 "Fix tdb_check() to work with read-only tdb databases."
claimed to do this, but tdb_lockall_read() fails on read-only databases.
Also make sure we can still do tdb_check() inside a transaction (weird,
but we previously allowed it so don't break the API).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit 2558eb250011893d09dbeaedaffeefa0e397142f)
We can end up with dead areas when we die during transaction commit;
tdb_check() fails on such a (valid) database.
This is particularly noticable now we no longer truncate on recovery;
if the recovery area was at the end of the file we used to remove it
that way.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(This used to be ctdb commit b4162a95ff9ae28cda8d9c76c51c9480104517a7)
Add a new command "ctdb stats [num]" that prints the [num] most recent statistics intervals collected.
(This used to be ctdb commit e6e16fcd5a45ebd3739a8160c8fb5f44494edb9e)
This serviceability tool was lost during the migration from the old eventsystem to the tevent system.
(This used to be ctdb commit b4c00b4ac30ec215629f44f802ce9660abcd7a48)
define a new symbol to represent this range similarly to NFSD and ISCSID
Keep the old symbol name to be backward compatible with software using
these headers.
(This used to be ctdb commit 2ce34e50d057ba95249117a581658a5ad7e8eb60)
This function returns a pointer to a nodemap structure.
The returned structure must later be freed by calling ctdb_free_nodemap().
Move the definition of ctdb_sock_addr from ctdb_client.h to ctdb_protocol.h
Move the definition of the node flags, ctdb_node_and_flags and ctdb_node_map from ctdb_private.h to ctdb_protocol.h
Add both sync and async example for ctdb_getnodemap to the test application libctdb/tst.c
(This used to be ctdb commit 31c10eb2b337fd7d8a97a1f9e69b0e7570fec71d)
network connectivity outside of the cluster to still be able to
participate in a natgw group.
These nodes can not become natgw master since they lack external network
connectivity.
These nodes are configured just the same way as for any other node with
NATGW, with the following two exceptions :
* we do NOT set CTDB_NATGW_PUBLIC_IFACE at all on these nodes.
since these ndoes lack external network we should not check the interface
for link.
* we must set CTDB_NATGW_SLAVE_ONLY=yes to flag that this is a node that
can not become natgw master.
(This used to be ctdb commit ab7b00a37e55beffc074be95b55d8a5c7cb9eef2)
since that will usually be /etc/ctdb/state and storing this under /etc is just
wrong.
Add a new variable CTDB_VARDIR that defaults to /var/ctdb and store the data there instead.
(This used to be ctdb commit 516423c25afa9861d9988096efa8a4a2b12b31b1)
dont dereference a null pointer while trying to print the log message for the failure.
also shutdown ctdb with ctdb_fatal()
(This used to be ctdb commit f8642d0438c6bbb34a72c25d6a904b626e247410)
the clusterwide persistent data associated with the lock manager and
statd notifications.
Use persistent databases to store this data instead of a shared directory.
(This used to be ctdb commit fc0678d351187cfa4c71123f97c0f493aacd5d16)
This is called everytime a reallocation is performed.
While STARTRECOVERY/RECOVERED events are only called when
we do ipreallocation as part of a full database/cluster recovery,
this new event can be used to trigger on when we just do a light
failover due to a node becomming unhealthy.
I.e. situations where we do a failover but we do not perform a full
cluster recovery.
Use this to trigger for natgw so we select a new natgw master node
when failover happens and not just when cluster rebuilds happen.
(This used to be ctdb commit 7f4c591388adae20e98984001385cba26598ec67)
Use onnode any where possible rather than a fixed node.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 51561720d2b4db5b307da3d410661075e2a6c3ca)
We now kill ctdbd on the test node instead of disabling it. This
ensures that the only tickles we see will come from the takeover node.
We also sleep for TickleUpdateInterval before checking for asking ctdb
about the tickles.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 48cd8325c070f6942aa13a25269021e4c8ed188f)
This adds a new function update_tickles() that tracks tickles for a
given port using the new ctdb addtickle/deltickle commands. This
function is used in events.d/60.nfs to handle NFS tickles.
events.d/61.nfstickle is removed. The
/proc/sys/net/ipv4/tcp_tw_recycle setup is also moved to
events.d/60.nfs.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit dca4c4ebf3c35f8db3ae208efb7a83abbf726ed6)
It is too hard to do anything else...
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 08b636b500855e38e708e6963d8e63ded97c25ec)
This database can be used, as an option, to store
the public address assignment instead of editing the /etc/ctdb/public-addresses file manually.
This configuration is stored in one record per key, with a key-name of
public-addresses:node#<pnn>
where <pnn> is the node number.
The content of this record is the same syntax as the /etc/ctdb/public-addresses file.
When ctdbd starts, if this key exist and contains data. It is extracted from the database and compared with the normal file /etc/ctdb/public-addresses.
If the content differs, the config database "wins" and is used to overwrite/update the /etc/ctdb/public-addresses file, after which ctdbd is restarted.
The main benefit with this option is that it can be used to update the public address configuration for nodes that are offline/unreachable by updating their configuration in the persistent database.
Once the offline node is available again, it will resync its databases with the rest of the cluster, find out that the config has changed, apply the changes and restart ctdbd automatically.
The command to store the public address configuration for a node into the persistent database is :
ctdb pstore config.tdb public-addresses:node#<pnn> <filename>
where <pnn> is the node# we wish to update the config for, and <filename> is a file containing the new content for that nodes public address configuration.
(This used to be ctdb commit 292d7435a360efd7f15a7a99f658a605e07c0a81)
