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Print the sequence number without preamble. Print it in hex to match
the logs.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
No preamble, just print keyword ENABLED or DISABLED. Fix the
documentation to reflect this and remove the text that is simply
wrong.
Also remove output from "ctdb enablemonitor" and "ctdb disablemonitor"
on success. This is just noise.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Print just the debug level as a description, for both human and
machine readable.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Replacement for ctdb tool will not support multiple debug levels.
This test could be modified to use the default debug level but that
would make it identical to reloadnodes test #19.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This message was useful when debugging during development but it isn't
generally useful.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
New function simple_test_other() allows other tool commands to be
tested along with the main command.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
If CTDB_TESTS_VAR isn't cleaned up between runs then this can result
in a lot of accumulated temporary files, so clean up the temporary
files.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This makes the ctdbd setup explicit and allows multiple calls to
simple_test() in the same test without ugly re-initialisation.
While here drop any unneeded ctdbd initialisation, such as VNNMAP and
IFACES. These have often been needlessly present, cluttering the
tests.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This limitation can be removed with a reasonable amount of effort. It
probably isn't worth doing until the public IP address configuration
is stored in a cluster-wide database. That seems like the right time
to change the API to handle the details that
CTDB_CONTROL_GET_PUBLIC_IPS doesn't currently retrieve.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb_ctrl_freeze() now only needs to send a single control since there
are no database priorities any more.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
There are no database priorities anymore, so the function name does
not make any sense. Call the code in thaw_priority() directly from
ctdb_control_thaw().
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Parallel database recovery freezes databases in parallel and irrespective
of database priority. So drop priority from freeze/thaw code.
Database priority will be dropped completely soon.
Now FREEZE and THAW controls operate on all the databases.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
If the database is not frozen and recovery mode is not active, then
vacuuming can continue.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This makes it easier to drop unused async implementation of the same.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Databases should never be thawed manually. A database recovery will
correctly thaw all databases. Otherwise there is a bug in the database
recovery.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
CTDB web pages are now tracked in a separate repo. Most of the pages
are outdated and will be removed soon with links to the wiki.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
CTDB has a lot of scripts and shellcheck can be useful to find dubious
scripting practices.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Thu Jul 21 06:06:49 CEST 2016 on sn-devel-144
This helps unit tests locate CTDB's scripts. It is being created to
support some new shellcheck unit tests.
Hopefully, it can also be used to simplify some of the symlink
complexity in some other unit tests suites, such as eventscripts.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2006: Use $(..) instead of legacy `..`.
Make the obvious changes to $(...) but convert some to $((...)).
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2124: Assigning an array to a string!
Assign as array, or use * instead of @ to concatenate.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2059: Don't use variables in the printf format string.
Use printf "..%s.." "$foo".
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2012: Use find instead of ls to better handle non-alphanumeric filenames.
Make this cope better with unexpected whitespace.
Unfortunately, this results in shellcheck warning:
SC2035: Use ./*.tdb.* so names with dashes won't become options.
No! Then stat(1) will print ./file.tdb.X. We want the basenames and
we know the filenames don't start with dashes.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2012: Use find instead of ls to better handle non-alphanumeric filenames.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2038: Use -print0/-0 or -exec + to allow for non-alphanumeric filenames.
The suggested options aren't POSIX-compliant. This is more portable.
Base filenames can't have whitespace so rework to avoid problems with
whitespace in directory name.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2039: In POSIX sh, ulimit -c/-n is not supported.
Have shellcheck suppress the warnings. If -n is not supported then
don't set CTDB_MAX_OPEN_FILES. If packaging for a platform where -c
is not supported then remove this code and associated documentation.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2039: In POSIX sh, -nt is not supported.
This script is specific to the Linux NFS implementation. The -nt
operator is well supported in Linux shells (e.g. dash, bash, ksh).
The alternatives (e.g. using stat(1)) would result in less readable
code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2094: Make sure not to read and write the same file in the same pipeline.
The semantics here are unclear, so use a separate flock file in each
case for clarity.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2039: In POSIX sh, echo flags are not supported.
echo -n is well supported but the changes are simple.
Improve some logic, replace some instances with printf. Who knew
printf was in POSIX?
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2039: In POSIX sh, 'type' is not supported.
type is commonly supported and is more portable than which(1).
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2015: Note that A && B || C is not if-then-else. C may run when A is
true.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2119: Use FUNC "$@" if function's $1 should meanscript's $1.
SC2120: FUNC references arguments, but none are ever passed.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2017: Increase precision by replacing a/b*c with a*c/b.
This code intentionally rounds to an even value.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC1004: You don't break lines with \ in single quotes, it results in
literal backslash-linefeed.
These don't hurt, since awk can cope with the continuations. However,
they don't add anything.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2154: VAR is referenced but not assigned.
Change ctdb_setup_service_state_dir(), ctdb_get_pnn() and
ctdb_get_ip_address() to print the value so it can be assigned to a
variable. The performance gain from avoiding the sub-shells when
calling these functions is close to zero.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2046: Quote this to prevent word splitting.
SC2086: Double quote to prevent globbing and word splitting.
Add some quoting where it makes sense. Use shellcheck directives for
false-positives.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2034: VAR appears unused. Verify it or export it.
Drop some variables that are unnecessarily used. Use shellcheck
directive for false-positives.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2030: Modification of VAR is local (to subshell caused by (..) group).
SC2031: VAR was modified in a subshell. That change might be lost.
Fix a related, incorrect comment.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2016: Expressions don't expand in single quotes, use double quotes for that.
Error messages are now arguably more readable.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
It is no longer used and adds needless complexity.
As a side-effect, the functions file can now be parsed by shellcheck.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This makes the logic more obvious.
Fix the (probably) accidental fall-through to the regular monitor
failure.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
* Re-indent case labels as per new script style
Other indentation can be tweaked later as code changes, but the
labels are an obvious bulk change.
* Minor whitespace fixes
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
It doesn't do anything. Add a comment to its definition to explain
why it is still there.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Ensures that backups of corrupt TDB files are correctly limited in
number.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Tweak eventscript unit test infrastructure to support.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
If there are insufficient arguments then they can't be shifted.
This function will be removed shortly. However, it needs to work for
now as tests will be added that depend on it to work.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
==27786== Syscall param write(buf) points to uninitialised byte(s)
==27786== at 0x62820D0: __write_nocancel (syscall-template.S:84)
==27786== by 0x428B57: ctdb_queue_send (ctdb_io.c:322)
==27786== by 0x41F3B1: ctdb_client_queue_pkt (ctdb_client.c:153)
==27786== by 0x41F3B1: ctdb_client_send_message (ctdb_client.c:603)
==27786== by 0x419FA3: srvid_broadcast.constprop.26 (ctdb.c:1965)
==27786== by 0x41B869: control_reload_nodes_file (ctdb.c:5696)
==27786== by 0x404DBA: main (ctdb.c:6008)
==27786== Address 0x7ead310 is 144 bytes inside a block of size 168 alloc'd
==27786== at 0x4C2BBCF: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==27786== by 0x564DBEC: __talloc_with_prefix (talloc.c:675)
==27786== by 0x564DBEC: __talloc (talloc.c:716)
==27786== by 0x564DBEC: _talloc_named_const (talloc.c:873)
==27786== by 0x564DBEC: _talloc_zero (talloc.c:2318)
==27786== by 0x41E1E2: _ctdbd_allocate_pkt (ctdb_client.c:59)
==27786== by 0x41F37D: ctdb_client_send_message (ctdb_client.c:594)
==27786== by 0x419FA3: srvid_broadcast.constprop.26 (ctdb.c:1965)
==27786== by 0x41B869: control_reload_nodes_file (ctdb.c:5696)
==27786== by 0x404DBA: main (ctdb.c:6008)
==27786==
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
State is stolen onto tmp_ctx above so can't be referenced after
tmp_ctx is freed. So, state->status has to be looked at earlier.
Moving it immediately before the talloc_free(tmp_ctx) isn't sufficient
because invoking the callback appears to cause a recursive call to
ctdb_control_recv(), which also frees state.
Referencing it at the top seems safe.
==23982== Invalid read of size 4
==23982== at 0x4204AE: ctdb_control_recv (ctdb_client.c:1181)
==23982== by 0x420645: invoke_control_callback (ctdb_client.c:971)
==23982== by 0x5E675EC: tevent_common_loop_timer_delay (tevent_timed.c:341)
==23982== by 0x5E68639: epoll_event_loop_once (tevent_epoll.c:911)
==23982== by 0x5E66BD6: std_event_loop_once (tevent_standard.c:114)
==23982== by 0x5E622EC: _tevent_loop_once (tevent.c:533)
==23982== by 0x4255F7: ctdb_client_async_wait (ctdb_client.c:3385)
==23982== by 0x42578A: ctdb_client_async_control (ctdb_client.c:3442)
==23982== by 0x41B405: ctdb_get_nodes_files (ctdb.c:5488)
==23982== by 0x41B405: check_all_node_files_are_identical (ctdb.c:5530)
==23982== by 0x41B405: control_reload_nodes_file (ctdb.c:5673)
==23982== by 0x404DBA: main (ctdb.c:6008)
==23982== Address 0x7e98d9c is 108 bytes inside a block of size 168 free'd
==23982== at 0x4C2CDFB: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==23982== by 0x5652692: _tc_free_internal (talloc.c:1125)
==23982== by 0x5652692: _tc_free_children_internal (talloc.c:1570)
==23982== by 0x564B952: _tc_free_internal (talloc.c:1081)
==23982== by 0x564B952: _talloc_free_internal (talloc.c:1151)
==23982== by 0x564B952: _talloc_free (talloc.c:1693)
==23982== by 0x4204C9: ctdb_control_recv (ctdb_client.c:1182)
==23982== by 0x4207AA: async_callback (ctdb_client.c:3350)
==23982== by 0x4204AD: ctdb_control_recv (ctdb_client.c:1179)
==23982== by 0x420645: invoke_control_callback (ctdb_client.c:971)
==23982== by 0x5E675EC: tevent_common_loop_timer_delay (tevent_timed.c:341)
==23982== by 0x5E68639: epoll_event_loop_once (tevent_epoll.c:911)
==23982== by 0x5E66BD6: std_event_loop_once (tevent_standard.c:114)
==23982== by 0x5E622EC: _tevent_loop_once (tevent.c:533)
==23982== by 0x4255F7: ctdb_client_async_wait (ctdb_client.c:3385)
==23982== Block was alloc'd at
==23982== at 0x4C2BBCF: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==23982== by 0x564DBEC: __talloc_with_prefix (talloc.c:675)
==23982== by 0x564DBEC: __talloc (talloc.c:716)
==23982== by 0x564DBEC: _talloc_named_const (talloc.c:873)
==23982== by 0x564DBEC: _talloc_zero (talloc.c:2318)
==23982== by 0x42017F: ctdb_control_send (ctdb_client.c:1086)
==23982== by 0x425746: ctdb_client_async_control (ctdb_client.c:3431)
==23982== by 0x41B405: ctdb_get_nodes_files (ctdb.c:5488)
==23982== by 0x41B405: check_all_node_files_are_identical (ctdb.c:5530)
==23982== by 0x41B405: control_reload_nodes_file (ctdb.c:5673)
==23982== by 0x404DBA: main (ctdb.c:6008)
==23982==
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
The point of this code is almost certainly to return non-zero when
state->errormsg is set. So, return state->status if non-zero, -1
otherwise.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This avoids relevant shellcheck warnings. This is most of the
shellcheck low hanging fruit in the non-test code. Many of the other
warnings produced by shellcheck are either false positives, are
non-trivial to fix or a fix may result in worse code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Wed Jul 6 08:15:49 CEST 2016 on sn-devel-144
* Assign the output of dirname to temporary variable to avoid word
splitting when directory name contains whitespace
* Drop export of CTDB_BASE to avoid masking broken return value -
functions file does the export anyway
* Quote path when including functions file
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This avoids having to export it in every file that includes the
functions file.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Added so that nfs_check_services() could be run against an arbirary
directory. However, with the function moved to the event script, this
isn't useful. CTDB_NFS_CHECKS_DIR can be used for testing instead.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
There is no need to explicitly check that recovery is not active before
sending TRANS33_COMMIT control. Just try TRANS3_COMMIT control and if
recovery occurs before the control is completed, the control will fail
and it can be retried.
Make sure g_lock lock is released after the transaction is complete.
Also, add timeout to the client api.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Since g_lock checks if the process exists in case of conflicting lock,
there is no need to register srvid.
Transaction start returns a transaction handle and transaction
commit/cancel will free that handle. Since we cannot call async code
in a talloc destructor, this avoids the use of talloc destructor for
cancelling the transaction.
If user frees the transaction handle instead of calling transaction
cancel, it will leave stale g_lock lock. This stale g_lock lock will
get cleaned up on next transaction attempt.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
If a conflicting g_lock entry is found, check if the process exists.
This matches Samba implementation.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Instead of delaying for 1 second, try to get g_lock lock again after
1 milli-second.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
In delete_record, sync call to ctdb_ctrl_schedule_for_deletion will
cause nested event loops. Instead wrap the async version.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
In commit 1ee7053180, the
ctdb_rec_buffer_traverse always passes NULL for header. So explicitly
extract header from the data.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Logging that node has lost election is less useful than knowing which
node has won the election.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The ipalloc code doesn't need a CTDB context so neither should the
code that tests it.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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>
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>
Abstracts out code involving internals of IP allocation state.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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>
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>
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>
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>
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>
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>