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Commit Graph

6491 Commits

Author SHA1 Message Date
Martin Schwenke
21adcd32bd ctdb-ipalloc: Move set_ipflags_internal() to ipalloc
Rename it ipalloc_set_node_flags().

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
2eb0b9e98a ctdb-ipalloc: Switch set_ipflags_internal() to use a new-style node map
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
ee7fc252c8 ctdb-ipalloc: Move ipalloc state initialisation to ipalloc.c
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
38f4616bdd ctdb-ipalloc: Pass extra data to IP allocation state initialisation
No longer require CTDB context but pass in number of nodes, algorithm,
no_ip_failback and force_rebalance_nodes.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
64361d9778 ctdb-ipalloc: Make no_ip_failback a boolean
No need to expose tunable values that far down.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
86f7c4d7f3 ctdb-ipalloc: Fix buggy short-circuit when no IPs are available
At the moment IP is short-circuited when there are no available IP
addresses.  However, if some IP addresses are already allocated then
"no available IP addresses" means that all the addresses should
(probably) be released.  The current short-circuit means that no
already hosted IP addresses will be released.

The short-circuit exists to avoid lots of messages saying that all IP
addresses can not be assigned at startup time.  So, add a check to
ipalloc_can_host_ips() so that it succeeds if IP addresses are already
allocated to nodes.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
c5d85a071b ctdb-ipalloc: New function ipalloc_can_host_ips()
Abstracts out code involving internals of IP allocation state.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
695da518de ctdb-ipalloc: Drop known public IPs from IP allocation state
This is never used in the allocation algorithms.  It is only used when
building the merged IP list.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
e8ff433c46 ctdb-ipalloc: Move create_merged_ip_list() into ipalloc
How the existing IP layout is constructed and how the merged IP list is
sorted are important aspects of the IP allocation algorithm.  Construct the
merged IP list when known and available IPs are assigned.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
5c47c35c5a ctdb-ipalloc: New function ipalloc_set_public_ips()
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
1f5c4dbac9 ctdb-ipalloc: Remove function ctdb_reload_remote_public_ips()
Use ctdb_fetch_remote_public_ips() inline to fetch each list.  Assign
them into the IP allocation state separately.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
303ef82a27 ctdb-ipalloc: Clean up reloading of remote public IPs
Factor out new function ctdb_fetch_remote_public_ips() to fetch known
or available public IP addresses, according to flags.

This also drops the hack where the array from a
ctdb_public_ip_list_old was assigned to a pointer in a
ctdb_public_ip_list.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
c09cf571b7 ctdb-ipalloc: Don't build a global IP tree
It isn't used outside this function, so just use a local variable.

This makes create_merged_ip_list() independent of the CTDB context.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:25 +02:00
Martin Schwenke
55f13b74bf ctdb-ipalloc: Drop code to update IP assignment tree
This code is not used.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
58ada0757f ctdb-tools: Don't bother sending CTDB_SRVID_RECD_UPDATE_IP
Nothing is listening.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
a26d39e5ce ctdb-recoverd: Drop code to change the IP assignment tree
The tree is no longer used in verification.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
35644d0d82 ctdb-ipalloc: Drop remote IP verification
It is only run during a takeover run and only logs errors.  It doesn't
actually do anything to fix potential errors.  The takeover run should
fix any inconsistencies anyway.

Instead, leave a comment in the recovery daemon's monitoring loop to
add proper remote IP verification later.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
c86066cdc0 ctdb-ipalloc: Drop a use of CTDB_NO_MEMORY_NULL()
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
1ec7de66e9 ctdb-ipalloc: Do not use node count or PNNs from CTDB context
This is unnecessary.  IP allocation state already has a node count and
"i" is already a PNN.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
c92aa6105a ctdb-ipalloc: Drop an unnecessary check
Deleted (and other inactive) nodes will have an empty list of known
IP addresses.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
03b300e052 ctdb-ipalloc: Move if-statement with broken condition
This pointer is for an array that is always allocated.  The check is
meant to skip a node that has no IP addresses.  However, when there
are no IP addresses the loop below will not do anything anyway.

Add this as a check at the beginning of the function instead.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
27a26087e1 ctdb-tests: Drop CTDB_TEST_MAX_NODES
The node map is dynamically constructed.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
5f95240653 ctdb-tests: Build a node map instead of a hacky node flags array
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
5d148ce99c ctdb-tests: Assign known and available arrays via pointers.
No need to allocate these and iterate as
read_ctdb_public_ip_info_node() now returns a usable array.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
cd5ed374bc ctdb-tests: read_ctdb_public_ip_info() reads all test input
If there is per-node data then each chunk is read in a separate call
and is cherry-picked out into known_public_ips[] for each node.  This
is confusing.

Instead, a single call now reads all data for multiple nodes and
returns complete arrays of known and available IP addresses.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
067a611c7d ctdb-tests: Drop CTDB_TEST_MAX_IPS
Arrays are now dynamically reallocated.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
09924d9c94 ctdb-tests: Drop all_ips argument from read_ctdb_public_ip_info()
Nothing uses the result.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:24 +02:00
Martin Schwenke
4d20babddf ctdb-tests: Don't bother setting all_ips
It isn't used outside this function.  Instead, update k directly.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:23 +02:00
Martin Schwenke
fcc373e3c3 ctdb-tests: Simplify read_ctdb_public_ip_info() using new function add_ip()
Known public IPs array is now dynamically allocated instead of
allocated once with artificial size limit.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:23 +02:00
Martin Schwenke
2d7ba8335b ctdb-tests: Remove unused tests from IP takeover test harness
These tests aren't run anywhere.  They were used to test internal
functions during development.

The aim is to simplify this test program so that it can be linked with
the ipalloc subsystem, allowing removal of ctdbd_test.c and all of its
complications.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-04 15:42:23 +02:00
Amitay Isaacs
600cec4d44 ctdb-recovery: Terminate if recovery fails without any banning credits
In case of database recovery failure, if there are no banning credits
assigned, then the async computation is never terminated.  The else
condition is missing in (max_credits >= NUM_RETRIES) check.

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 Jun 24 09:56:23 CEST 2016 on sn-devel-144
2016-06-24 09:56:23 +02:00
Amitay Isaacs
1847556562 ctdb-recovery-helper: Fix a comment
The sequence of events are incorrectly documented.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2016-06-24 05:59:08 +02:00
Michael Adam
6083e62af5 ctdb-daemon: make bool assignment more obvious
(showing what is the rule and what is the exception)

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Tue Jun 21 11:48:29 CEST 2016 on sn-devel-144
2016-06-21 11:48:29 +02:00
Amitay Isaacs
7d9a876040 ctdb-tests: Update local daemons tests to use CTDB_NOSETSCHED
... instead of --nosetsched command-line option.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>

Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Mon Jun 20 20:22:57 CEST 2016 on sn-devel-144
2016-06-20 20:22:57 +02:00
Amitay Isaacs
fc7e863ce7 ctdb-scripts: Add new configuration variable CTDB_NOSETSCHED
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
2016-06-20 16:21:19 +02:00
Amitay Isaacs
da91b70746 ctdb-locking: Avoid real-time in lock helper if nosetsched option is set
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
2016-06-20 16:21:19 +02:00
Amitay Isaacs
a21a4de2cb ctdb-locking: Conditionally set real-time priority in lock helper
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
2016-06-20 16:21:19 +02:00
Amitay Isaacs
2828b9a8c6 ctdb-daemon: Explicitly assign boolean values
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
2016-06-20 16:21:19 +02:00
Amitay Isaacs
fd7bad4229 ctdb-daemon: Do explicit check for integer values
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
2016-06-20 16:21:19 +02:00
Amitay Isaacs
a97811392f ctdb-tests: Improve ctdb protocol tests
Test with 0-sized arrays in various data types.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Sat Jun 18 23:31:50 CEST 2016 on sn-devel-144
2016-06-18 23:31:50 +02:00
Amitay Isaacs
dcd1a43b8c ctdb-protocol: Add checks to validate data on wire before unmarshaling
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
2016-06-18 19:33:14 +02:00
Amitay Isaacs
e17396442a ctdb-protocol: Add checks to validate data on wire before unmarshaling
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
2016-06-18 19:33:14 +02:00
Amitay Isaacs
e3e8ce4b81 ctdb-protocol: Fix marshaling of uint arrays
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
2016-06-18 19:33:14 +02:00
Michael Adam
c59842610b ctdb: use properly configured ctdb in debug-hung-script.sh
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Sat Jun 11 10:23:03 CEST 2016 on sn-devel-144
2016-06-11 10:23:03 +02:00
Michael Adam
80492a4f91 ctdb: use properly configured ctdb in statd-callout
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2016-06-11 06:20:14 +02:00
Michael Adam
d9a44ae4bf ctdb: use properly configured ctdb in 99.timeout
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2016-06-11 06:20:14 +02:00
Michael Adam
0b98c64646 ctdb: use properly configured ctdb in 91.lvs
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2016-06-11 06:20:14 +02:00
Michael Adam
54cd189de3 ctdb: use properly configured ctdb in 70.iscsi
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2016-06-11 06:20:14 +02:00
Michael Adam
5dea37abd0 ctdb: use properly configured ctdb in 10.interfaces
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2016-06-11 06:20:14 +02:00
Michael Adam
7805374a09 ctdb: use properly configured ctdb in 13.per_ip_routing
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
2016-06-11 06:20:14 +02:00