ctdb.git
12 years agoAdd log output to wipedb and backupdb
Ronnie Sahlberg [Mon, 4 Jul 2011 20:29:00 +0000 (06:29 +1000)]
Add log output to wipedb and backupdb
CQ S1025379

12 years agoWhen trying to re-balance the ip assignment and shuffle ips from
Ronnie Sahlberg [Tue, 3 Aug 2010 03:34:27 +0000 (13:34 +1000)]
When trying to re-balance the ip assignment and shuffle ips from
nodes with many addresses to nodes with few addresses,
loop up to num_ips+5 times instead of only 5 times.

When we have very many public ips per node, we might need to loop more than
5 times or else we will exit without reaching optimal balance.

12 years agochange the name for the key for the record where we stoire the public address config...
Ronnie Sahlberg [Tue, 28 Jun 2011 05:39:38 +0000 (15:39 +1000)]
change the name for the key for the record where we stoire the public address config from public-addresses... to public_addresses...

CQ1019030

12 years agoRemove a benign by annoying log message that will be logged after an interface that...
Ronnie Sahlberg [Sat, 18 Jun 2011 00:47:25 +0000 (10:47 +1000)]
Remove a benign by annoying log message that will be logged after an interface that has been in use has later been removed and is no longer referenced by any public addresses.

CQ S1024495

12 years agoonnode: fix natgwlist nodespec
Martin Schwenke [Mon, 23 May 2011 05:33:12 +0000 (15:33 +1000)]
onnode: fix natgwlist nodespec

This hasn't worked for a while if ever.

We treat this case specially because the output has 2 works on the 1st
line.  We also handle the error case where /etc/ctdb_natgw_nodes
exists but none of the other $NATGW_* configuration is done.

Signed-off-by: Martin Schwenke <martin@meltin.net>
12 years agoonnode: fix get_nodes_with_status()
Martin Schwenke [Mon, 23 May 2011 05:24:52 +0000 (15:24 +1000)]
onnode: fix get_nodes_with_status()

Setting IFS and looping though items with colons in them doesn't work.
Change this to read through the output line by line.  The header line
needs to be thrown away by throwing away everything up to the 1st
newline.

Keep stderr from the "ctdb status" command, otherwise debugging is
impossible.

On error, append any output from ctdb to onnode's error message.

Signed-off-by: Martin Schwenke <martin@meltin.net>
12 years agoonnode: Remove an unnecessary comment.
Martin Schwenke [Tue, 17 May 2011 04:26:55 +0000 (14:26 +1000)]
onnode: Remove an unnecessary comment.

The comment about $CTDB_NODES_SOCKETS is meaningless.  The code ti
refers to works just find with $CTDB_NODES_SOCKETS.

Signed-off-by: Martin Schwenke <martin@meltin.net>
12 years agoonnode: Future-proof get_nodes_with_status().
Martin Schwenke [Tue, 17 May 2011 04:24:30 +0000 (14:24 +1000)]
onnode: Future-proof get_nodes_with_status().

The current code requires knowledge of the number of status bits
output by "ctdb status -Y".

This changes the code to be completely general.

Signed-off-by: Martin Schwenke <martin@meltin.net>
12 years agoonnode: Exit with error for unknown command-line flags.
Martin Schwenke [Tue, 17 May 2011 03:25:08 +0000 (13:25 +1000)]
onnode: Exit with error for unknown command-line flags.

Use of "local" was masking errors in command-line processing.

Signed-off-by: Martin Schwenke <martin@meltin.net>
12 years agoonnode: Be defensive when listing IPs of nodes with designated status.
Martin Schwenke [Tue, 17 May 2011 03:20:51 +0000 (13:20 +1000)]
onnode: Be defensive when listing IPs of nodes with designated status.

The current version gives the last item left after stripping the known
fields.  If an insufficent number of status fields is stripped then
this would return a residual status field value, which turned out to
be a valid IP address for localhost...  so no error occurs.

This change means that the node number is stripped and any residual
status field value will stay appended, causing an error the first time
this command is tested.

Signed-off-by: Martin Schwenke <martin@meltin.net>
12 years agoonnode - Fix long standing bug in onnode healthy/ok/connected/con.
Martin Schwenke [Tue, 17 May 2011 03:18:11 +0000 (13:18 +1000)]
onnode - Fix long standing bug in onnode healthy/ok/connected/con.

When the output of "ctdb status -Y" changed to add an extra status
column we didn't fix onnode.

This adds a match for the extra column.

Signed-off-by: Martin Schwenke <martin@meltin.net>
12 years agoNew version 1.2.30
Ronnie Sahlberg [Mon, 30 May 2011 04:41:12 +0000 (14:41 +1000)]
New version 1.2.30

13 years agopackaging: add ltdbtool and its manpage to the RPM
Michael Adam [Wed, 4 May 2011 12:28:26 +0000 (14:28 +0200)]
packaging: add ltdbtool and its manpage to the RPM

13 years agoinstall the ltdbtool manpage with "make install"
Michael Adam [Wed, 4 May 2011 12:25:48 +0000 (14:25 +0200)]
install the ltdbtool manpage with "make install"

13 years agoinstall ltdbtool with "make install"
Michael Adam [Wed, 4 May 2011 11:44:59 +0000 (13:44 +0200)]
install ltdbtool with "make install"

13 years agobuild "ltdbtool" in "make all"
Michael Adam [Wed, 4 May 2011 11:44:10 +0000 (13:44 +0200)]
build "ltdbtool" in "make all"

13 years agoltdbtool: add manpage html + roff
Gregor Beck [Wed, 4 May 2011 12:17:04 +0000 (14:17 +0200)]
ltdbtool: add manpage html + roff

Signed-off-by: Michael Adam <obnox@samba.org>
13 years agoltdbtool: add manpage
Gregor Beck [Wed, 4 May 2011 12:14:54 +0000 (14:14 +0200)]
ltdbtool: add manpage

Signed-off-by: Michael Adam <obnox@samba.org>
13 years agoadd ltdbtool - a standalone ltdb tool
Gregor Beck [Thu, 14 Apr 2011 10:51:59 +0000 (12:51 +0200)]
add ltdbtool - a standalone ltdb tool

This this is a tool to handle (dump and convert) ctdb's local tdb
copies (ltdbs) without connecting to a ctdb daemon.

It can be used to

* dump the contents of a ltdb, printing
  the ctdb record header information

* dump a non-clustered tdb database (like tdbdump)

* convert between an ltdb and a non-clustered tdb
  (adding or removing ctdb headers)

* convert between 64 and 32 bit ltdbs
  (the ctdb record headers differ by 4 bytes of padding)

usage: bin/ltdbtool dump [-p] [-s{0|32|64}] <idb>
       bin/ltdbtool convert [-s{0|32|64}] [-o{0|32|64}] <idb> <odb>

Pair-Programmed-With: Michael Adam <obnox@samba.org>

13 years agoctdb catdb: fix escaping of '"' and '\'
Gregor Beck [Thu, 14 Apr 2011 10:55:57 +0000 (12:55 +0200)]
ctdb catdb: fix escaping of '"' and '\'

Signed-off-by: Michael Adam <obnox@samba.org>
13 years agoWhen using multiple VLANs, some funky stuff can sometimes happen when
Ronnie Sahlberg [Thu, 12 May 2011 00:24:46 +0000 (10:24 +1000)]
When using multiple VLANs, some funky stuff can sometimes happen when
adding/removing IP addresses causing routes might be dropped by the system.

The easiest workaround for this is to unconditionally try to reapply
all static routes for all interfaces once ipreallocation has finished,
not just adding them back on the affected interface.

This worksaround a funky issue in
CQ S1023538

13 years agoRemove all checking of GPFS from ctdb_diagnostics
Ronnie Sahlberg [Wed, 11 May 2011 09:50:09 +0000 (19:50 +1000)]
Remove all checking of GPFS from ctdb_diagnostics

CQ S1023524

13 years agoNew version 1.2.29
Ronnie Sahlberg [Tue, 10 May 2011 00:51:37 +0000 (10:51 +1000)]
New version 1.2.29

13 years agoIf samba fails to start for some reason, make this cause the startup event to fail...
Ronnie Sahlberg [Mon, 9 May 2011 22:25:27 +0000 (08:25 +1000)]
If samba fails to start for some reason, make this cause the startup event to fail too,   so that ctdbd will re-try the startup event later.
Or else this will leave samba not running.

CQ S1023394

13 years agoDont exit from checking interfaces once we have found one interface that is not
Ronnie Sahlberg [Mon, 9 May 2011 20:19:34 +0000 (06:19 +1000)]
Dont exit from checking interfaces once we have found one interface that is not
in use by public addresses.   this can happen when we have removed existing interfaces/ip addresses and prevents us from verifying the status of other interfaces

13 years agoRemove logging of spam/errors from the 10.interfrace
Ronnie Sahlberg [Sun, 8 May 2011 20:35:33 +0000 (06:35 +1000)]
Remove logging of spam/errors from the 10.interfrace
script if/when we have for example NATGW configured but no public addresses defined on that interface

CQ S1023378

13 years agoDont call the UPDATE event if both old and new interface is the same.
Ronnie Sahlberg [Wed, 4 May 2011 01:34:17 +0000 (11:34 +1000)]
Dont call the UPDATE event if both old and new interface is the same.

CQ S1018175

13 years agoCleanup of logging messages/spamming
Ronnie Sahlberg [Tue, 3 May 2011 22:54:02 +0000 (08:54 +1000)]
Cleanup of logging messages/spamming

Reduce an infomational message about not performing ip reallocation
from NOTICE(the default) to INFO.
These messages are normal during startup or when stopped/banned when
we will be in recovery mode for a while.

Remove a messager in the loop waiting for initial startup to complete about
the generation being invalid. It is always invalid at this stage before we have
finished initial recovery.

Rate-limit the informational messages for CTDB_WAIT_UNTIL_RECOVERED
so that we only print them once per second for the first 60 seconds and after that only once per 10 minutes.
These messages are normal during startup, but we should not be logging them every second for cases where we will remain in recovery mode during startup for an extended period of time.
Such as if suspended or permabanned.

CQ S1023302

13 years agobonding mode 4 monitoring:
Ronnie Sahlberg [Tue, 12 Apr 2011 21:51:36 +0000 (07:51 +1000)]
bonding mode 4 monitoring:
we can not just check if MII Status is up for bonding mode 4, since the kernel will always report the bond device as UP
even if all cables are disconneccted.

For mode 4, ignore the status of the bond device and instead chek if at least one slave interface is up
when determining if the device is good or bad

13 years agoIf the eventscript is finished but state->ctdb is NULL,
Ronnie Sahlberg [Mon, 11 Apr 2011 19:24:43 +0000 (05:24 +1000)]
If the eventscript is finished but state->ctdb is NULL,
log an error and return.

(Need to find root cause for this is soo too.)

13 years agoNew version 1.2.28
Ronnie Sahlberg [Sun, 10 Apr 2011 21:43:52 +0000 (07:43 +1000)]
New version 1.2.28

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
13 years agoIFACE handling. Assume links are always good on nstartup (they almost always
Ronnie Sahlberg [Sun, 10 Apr 2011 19:56:14 +0000 (05:56 +1000)]
IFACE handling. Assume links are always good on nstartup (they almost always

Simplify the handling of setting the links in the 10.interface eventscript
and remove the optimization to only call setifacelink on state change
to make the code simpler to read.

If a take ip event fails, flag the node as unhealthy.

Add a check to the interface script to check if the interface exists
or if it has been deleted.
So that we can capture and become UNHELTHY if someone deletes an interface
we are using to host public addresses.

13 years agoNATGW: dont set arp_ignore in 11.natgw anymore since we no longer
Ronnie Sahlberg [Wed, 6 Apr 2011 00:26:27 +0000 (10:26 +1000)]
NATGW: dont set arp_ignore in 11.natgw anymore since we no longer
need this for the natgw functionality

13 years agopackaging: remove the dependency to tdbtool and tdbdump from the spec file
Michael Adam [Tue, 5 Apr 2011 11:58:09 +0000 (13:58 +0200)]
packaging: remove the dependency to tdbtool and tdbdump from the spec file

The init script does now check for the availability of tdbdump
and "tdbtool check" and issues warnings if they are not available.
This can remove a dependency loop with building samba RPMs.

13 years agoctdb.init: print a warning when tdbdump is found but tdbtoo or "tdbtool check" is...
Michael Adam [Tue, 5 Apr 2011 11:50:00 +0000 (13:50 +0200)]
ctdb.init: print a warning when tdbdump is found but tdbtoo or "tdbtool check" is not available

13 years agoctdb.init: check for availability of "tdbtool check" and "tdbdump"
Michael Adam [Tue, 5 Apr 2011 11:43:56 +0000 (13:43 +0200)]
ctdb.init: check for availability of "tdbtool check" and "tdbdump"

Print a warning if neither is available.

13 years agoMerge branches '1.2' and '1.2' of 10.1.1.27:/shared/ctdb/ctdb-master into 1.2
Ronnie Sahlberg [Tue, 5 Apr 2011 00:32:02 +0000 (10:32 +1000)]
Merge branches '1.2' and '1.2' of 10.1.1.27:/shared/ctdb/ctdb-master into 1.2

13 years agoctdbd_pid : dont assign the ctdbd_pid until we have finished startup and thus dont...
root [Mon, 4 Apr 2011 23:20:10 +0000 (09:20 +1000)]
ctdbd_pid : dont assign the ctdbd_pid until we have finished startup and thus dont log warnings about 'Handling event ...' until startup has finished.

During startup there are some initial setup and commands done synchronous which means it is semi-normal to have the eventsystem blocked for some situations.

Once startup has finished, all handling should be asynchronous so activate the monitoring of the eventsystems at that stage.

CQ S1021936

13 years agoThis needs more testing first
Ronnie Sahlberg [Mon, 21 Mar 2011 03:28:22 +0000 (14:28 +1100)]
This needs more testing first

Revert "ctdbd: call tdb_reopen_all() in freeze child."

This reverts commit 1e30004f0c63572d721a2c2f53d8a6bccdb5ec45.

13 years agoNew version 1.2.27
Ronnie Sahlberg [Mon, 21 Mar 2011 02:02:31 +0000 (13:02 +1100)]
New version 1.2.27

13 years agoctdbd: call tdb_reopen_all() in freeze child.
Rusty Russell [Mon, 21 Mar 2011 02:37:17 +0000 (13:07 +1030)]
ctdbd: call tdb_reopen_all() in freeze child.

In theory, the ctdbd parent shouldn't be holding any locks, but it's a good
idea to always call tdb_reopen_all() after a fork().

13 years agoctdbd: fix lock held on error ("ctdb_req_dmaster from non-master.")
Rusty Russell [Mon, 21 Mar 2011 02:33:01 +0000 (13:03 +1030)]
ctdbd: fix lock held on error ("ctdb_req_dmaster from non-")

We should release the lock on the record before returning; otherwise the
recovery (which tries to freeze the database) will fail.  Symptoms are as
follows:

ctdbd: pnn 15 dmaster request for new-dmaster 19 from non-master 1 real-dmaster=5 key f049c3c8 dbid 0x6cf2837d gen=1148812532 curgen=1148812532 c->rsn=2 header.rsn=15 reqid=2147483585 keyval=0x4f464e49
ctdbd: ctdb_req_dmaster from non-master. Force a recovery.
...
ctdbd: freeze_lock-1:server/ctdb_freeze.c:55 Failed to lock database registry.tdb

CQ:1022545

13 years agonew version 1.2.26
Ronnie Sahlberg [Sun, 20 Mar 2011 21:51:20 +0000 (08:51 +1100)]
new version 1.2.26

13 years agoDeferred attach: create the timed event as a child context of the da context we want...
Ronnie Sahlberg [Wed, 16 Mar 2011 03:55:58 +0000 (14:55 +1100)]
Deferred attach: create the timed event as a child context of the da context we want to delete.
Othwervise the da context can be timed out and talloc_free()d
but the event for this already freed object will still trigger,
causing a talloc error and shutdown.

CQ S1022515

13 years agoNew version 1.2.25
Ronnie Sahlberg [Sun, 13 Mar 2011 23:12:37 +0000 (10:12 +1100)]
New version 1.2.25

13 years agoIP reallocation. If a public address is already hosted on the node when we startup...
Ronnie Sahlberg [Sun, 13 Mar 2011 22:55:28 +0000 (09:55 +1100)]
IP reallocation. If a public address is already hosted on the node when we startup, log a warning message but do not cause the recovery to fail.

CQ S1022356

13 years agoVacuuming: initialize a variable to avoid a harmless valgrind hit
Ronnie Sahlberg [Sun, 13 Mar 2011 00:30:52 +0000 (11:30 +1100)]
Vacuuming: initialize a variable to avoid a harmless valgrind hit

13 years agoDont allow clients to connect to databases untile we are well past and through
Ronnie Sahlberg [Fri, 11 Mar 2011 22:42:07 +0000 (09:42 +1100)]
Dont allow clients to connect to databases untile we are well past and through
the initial recovery phase

CQ S1022412

13 years agoNew version 1.2.24.
Michael Adam [Mon, 21 Feb 2011 04:55:16 +0000 (15:55 +1100)]
New version 1.2.24.

13 years agovacuum: fix a comment typo
Michael Adam [Fri, 11 Mar 2011 15:05:44 +0000 (16:05 +0100)]
vacuum: fix a comment typo

13 years agovacuum: use insert_record_into_delete_queue in ctdb_local_schedule_for_deletion.
Michael Adam [Fri, 11 Mar 2011 14:57:45 +0000 (15:57 +0100)]
vacuum: use insert_record_into_delete_queue in ctdb_local_schedule_for_deletion.

This is to take advantage of the hash collision handling and logging
also in ctdb_local_schedule_for_deletion.

13 years agovacuum: refactor insert_record_into_delete_queue out of ctdb_control_schedule_for_del...
Michael Adam [Fri, 11 Mar 2011 14:55:52 +0000 (15:55 +0100)]
vacuum: refactor insert_record_into_delete_queue out of ctdb_control_schedule_for_deletion

13 years agovacuum: raise a debug level from INFO to DEBUG
Michael Adam [Fri, 11 Mar 2011 13:57:15 +0000 (14:57 +0100)]
vacuum: raise a debug level from INFO to DEBUG

when overwriting an existing entry in the delete_queue.

13 years agoserver: add a comment explaining the call redirect logic in ctdb_call_send_redirect().
Michael Adam [Wed, 24 Nov 2010 07:01:01 +0000 (08:01 +0100)]
server: add a comment explaining the call redirect logic in ctdb_call_send_redirect().

13 years agoctdb_ltdb_store_server: honour the AUTOMATIC record flag
Michael Adam [Thu, 3 Feb 2011 15:32:23 +0000 (16:32 +0100)]
ctdb_ltdb_store_server: honour the AUTOMATIC record flag

Do not delete empty records that carry this flag but store
them and schedule them for deletetion. Do not store the flag
in the ltdb though, since this is internal only and should not
be visible to the client.

13 years agoltdb: add the CTDB_REC_FLAG_AUTOMATIC to the initial header in ctdb_ltdb_fetch()
Michael Adam [Thu, 3 Feb 2011 15:30:52 +0000 (16:30 +0100)]
ltdb: add the CTDB_REC_FLAG_AUTOMATIC to the initial header in ctdb_ltdb_fetch()

Signals that this record was not created by a client level store.

13 years agoctdb_private.h: add record flag CTDB_REC_FLAG_AUTOMATIC
Michael Adam [Thu, 3 Feb 2011 15:27:42 +0000 (16:27 +0100)]
ctdb_private.h: add record flag CTDB_REC_FLAG_AUTOMATIC

This is a flag that shall signa that a record has been automatically generated by ctdb
and not by an explicit client store operation. This will be used in the ctdb_ltdb_fetch
operation which stores an empty record with default initial header before trying to
migrate the record from the dmaster when the record does not exist in the local tdb.

13 years agoctdb_ltdb_store_server: add ability to send SCHEDULE_FOR_DELETION control to ctdb_ltd...
Michael Adam [Tue, 28 Dec 2010 12:19:22 +0000 (13:19 +0100)]
ctdb_ltdb_store_server: add ability to send SCHEDULE_FOR_DELETION control to ctdb_ltdb_store.

13 years agoctdb_ltdb_store_server: Improve debug message in ctdb_ltdb_store when store or delete...
Michael Adam [Tue, 21 Dec 2010 17:08:11 +0000 (18:08 +0100)]
ctdb_ltdb_store_server: Improve debug message in ctdb_ltdb_store when store or delete fails.

13 years agoctdb_ltdb_store_server: always store the data when ctdb_ltdb_store() is called from...
Michael Adam [Tue, 21 Dec 2010 16:50:52 +0000 (17:50 +0100)]
ctdb_ltdb_store_server: always store the data when ctdb_ltdb_store() is called from the client

This also fixes a segfault since ctdb_lmaster uses the vnn_map.

13 years agoctdb_ltdb_store_server: implement fastpath vacuuming deletion based on VACUUM_MIGRATE...
Michael Adam [Fri, 10 Dec 2010 13:13:50 +0000 (14:13 +0100)]
ctdb_ltdb_store_server: implement fastpath vacuuming deletion based on VACUUM_MIGRATED flag.

When the record has been obtained by the lmaster as part of the vacuuming-fetch
handler and it is empty and never been migrated with data, then such records
are deleted instead of being stored. These records have automatically been
deleted when leaving the former dmaster, so that they vanish for good when
hitting the lmaster in this way. This will reduces the load on traditional
vacuuming.

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

13 years agoctdb_ltdb_store_server: delete an empty record that is safe to delete instead of...
Michael Adam [Fri, 3 Dec 2010 14:29:21 +0000 (15:29 +0100)]
ctdb_ltdb_store_server: delete an empty record that is safe to delete instead of storing locally.

When storing a record that is being migrated off to another node
and has never been migrated with data, then we can safely delete it
from the local tdb instead of storing the record with empty data.

Note: This record is not deleted if we are its lmaster or dmaster.

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

13 years agoserver: Use the ctdb_ltdb_store_server() in the ctdb daemon for non-persistent dbs
Michael Adam [Thu, 30 Dec 2010 17:19:32 +0000 (18:19 +0100)]
server: Use the ctdb_ltdb_store_server() in the ctdb daemon for non-persistent dbs

This is realized by adding a ctdb_ltdb_store_fn function pointer to the db
context and filling it in the attach procedure for non-persistent dbs.

13 years agoserver: create a server variant ctdb_ltdb_store_server() of ctdb_ltdb_store().
Michael Adam [Thu, 30 Dec 2010 16:44:51 +0000 (17:44 +0100)]
server: create a server variant ctdb_ltdb_store_server() of ctdb_ltdb_store().

This is supposed to contain logic for deleting records that are safe
to delete and scheduling records for deletion. It will be called in
server context for non-persistent databases instead of the standard
ctdb_ltdb_store() function.

13 years agodaemon: fill ctdb->ctdbd_pid early
Michael Adam [Tue, 28 Dec 2010 12:14:23 +0000 (13:14 +0100)]
daemon: fill ctdb->ctdbd_pid early

13 years agotest: send SCHEDULE_FOR_DELETION control from randrec test.
Michael Adam [Tue, 21 Dec 2010 14:29:46 +0000 (15:29 +0100)]
test: send SCHEDULE_FOR_DELETION control from randrec test.

13 years agoclient: add accessor function ctdb_header_from_record_handle().
Michael Adam [Tue, 21 Dec 2010 14:29:23 +0000 (15:29 +0100)]
client: add accessor function ctdb_header_from_record_handle().

13 years agovacuum: add ctdb_local_schedule_for_deletion()
Michael Adam [Tue, 28 Dec 2010 12:13:34 +0000 (13:13 +0100)]
vacuum: add ctdb_local_schedule_for_deletion()

13 years agoserver: implement a new control SCHEDULE_FOR_DELETION to fill the delete_queue.
Michael Adam [Tue, 21 Dec 2010 13:25:48 +0000 (14:25 +0100)]
server: implement a new control SCHEDULE_FOR_DELETION to fill the delete_queue.

13 years agocontrol: add a new control opcode CTDB_CONTROL_SCHEDULE_FOR_DELETION
Michael Adam [Tue, 8 Mar 2011 23:57:55 +0000 (00:57 +0100)]
control: add a new control opcode CTDB_CONTROL_SCHEDULE_FOR_DELETION

13 years agocontrol: add macro CHECK_CONTROL_MIN_DATA_SIZE.
Michael Adam [Tue, 8 Mar 2011 23:56:25 +0000 (00:56 +0100)]
control: add macro CHECK_CONTROL_MIN_DATA_SIZE.

This is for the control dispatcher to check whether the input data has
a required minimum size.

13 years agovacuum: lower level of hash collision debug message to INFO
Michael Adam [Thu, 23 Dec 2010 10:54:09 +0000 (11:54 +0100)]
vacuum: lower level of hash collision debug message to INFO

13 years agovacuum: add statistics output to the fast and full traverse runs.
Michael Adam [Wed, 22 Dec 2010 23:27:27 +0000 (00:27 +0100)]
vacuum: add statistics output to the fast and full traverse runs.

13 years agovacuum: refactor insert_delete_record_data_into_tree() out of add_record_to_delete_tree()
Michael Adam [Tue, 21 Dec 2010 13:19:00 +0000 (14:19 +0100)]
vacuum: refactor insert_delete_record_data_into_tree() out of add_record_to_delete_tree()

for reuse in filling the delete_queue.

13 years agovacuum: change all Vacuum*Interval tunables to default to 10
Michael Adam [Mon, 20 Dec 2010 20:43:41 +0000 (21:43 +0100)]
vacuum: change all Vacuum*Interval tunables to default to 10

So, by default we have a fastpath vacuuming every 10 seconds and
full blown db-traverse vacuuming once every 10 minutes.

13 years agovacuum: disable full db-traverse vacuuming runs when VacuumFastPathCount == 0
Michael Adam [Mon, 20 Dec 2010 20:30:39 +0000 (21:30 +0100)]
vacuum: disable full db-traverse vacuuming runs when VacuumFastPathCount == 0

13 years agovacuum: Only run full vacuumig (db traverse) every VacuumFastPathCount times.
Michael Adam [Mon, 20 Dec 2010 17:03:38 +0000 (18:03 +0100)]
vacuum: Only run full vacuumig (db traverse) every VacuumFastPathCount times.

13 years agovacuum: reset the fast path count in the event handle if it exceeds the limit.
Michael Adam [Mon, 20 Dec 2010 16:54:04 +0000 (17:54 +0100)]
vacuum: reset the fast path count in the event handle if it exceeds the limit.

13 years agovacuum: bump the number of fast-path runs in the vacuum child destructor
Michael Adam [Mon, 20 Dec 2010 16:49:29 +0000 (17:49 +0100)]
vacuum: bump the number of fast-path runs in the vacuum child destructor

13 years agovacuum: add a fast_path_count to the vacuum_handle.
Michael Adam [Mon, 20 Dec 2010 16:44:02 +0000 (17:44 +0100)]
vacuum: add a fast_path_count to the vacuum_handle.

13 years agoAdd a tunable VacuumFastPathCount.
Michael Adam [Mon, 20 Dec 2010 16:42:25 +0000 (17:42 +0100)]
Add a tunable VacuumFastPathCount.

This will control how many fast-path vacuuming runs wil have to
be done, before a full vacuuming will be triggered, i.e. one with
a db-traversal.

13 years agovacuum: traverse the delete_queue befor traversing the database.
Michael Adam [Mon, 20 Dec 2010 16:25:35 +0000 (17:25 +0100)]
vacuum: traverse the delete_queue befor traversing the database.

13 years agovacuum: add delete_queue_traverse() for traversal of the delete_queue.
Michael Adam [Mon, 20 Dec 2010 16:24:32 +0000 (17:24 +0100)]
vacuum: add delete_queue_traverse() for traversal of the delete_queue.

13 years agovacuum: reduce indentation in add_record_to_delete_tree()
Michael Adam [Tue, 21 Dec 2010 10:22:50 +0000 (11:22 +0100)]
vacuum: reduce indentation in add_record_to_delete_tree()

This simplyfies the logical structure a bit by using early return.

13 years agovacuum: refactor new add_record_to_delete_tree() out of vacuum_traverse().
Michael Adam [Mon, 20 Dec 2010 16:11:27 +0000 (17:11 +0100)]
vacuum: refactor new add_record_to_delete_tree() out of vacuum_traverse().

This will be reused by the traversal of the delete_queue list.

13 years agovacuum: skip adding records to list of records to send to lmaster on lmaster
Michael Adam [Mon, 20 Dec 2010 15:41:13 +0000 (16:41 +0100)]
vacuum: skip adding records to list of records to send to lmaster on lmaster

This list is skipped afterwards when the lists are processed.

13 years agovacuum: refactor new add_record_to_vacuum_fetch_list() out of vacuum_traverse().
Michael Adam [Mon, 20 Dec 2010 15:31:27 +0000 (16:31 +0100)]
vacuum: refactor new add_record_to_vacuum_fetch_list() out of vacuum_traverse().

This is the function that fills the list of records to send to each lmaster
with the VACUUM_FETCH message.

This function will be reused in the traverse function for the delete_queue.

13 years agoserver: rename ctdb_repack_db() to ctdb_vacuum_and_repack_db()
Michael Adam [Mon, 20 Dec 2010 09:55:53 +0000 (10:55 +0100)]
server: rename ctdb_repack_db() to ctdb_vacuum_and_repack_db()

13 years agoWhen wiping a database, clear the delete_queue.
Michael Adam [Fri, 17 Dec 2010 01:22:02 +0000 (02:22 +0100)]
When wiping a database, clear the delete_queue.

13 years agovaccum: clear the fast-path vacuuming delete_queue after creating the vacuuming child.
Michael Adam [Fri, 17 Dec 2010 00:53:25 +0000 (01:53 +0100)]
vaccum: clear the fast-path vacuuming delete_queue after creating the vacuuming child.

Maybe we should keep a copy for the case that the vacuuming fails?

13 years agoWhen attaching to a non-persistent DB, initialize the delete_queue.
Michael Adam [Fri, 17 Dec 2010 00:38:09 +0000 (01:38 +0100)]
When attaching to a non-persistent DB, initialize the delete_queue.

13 years agoAdd a delete_queue to the ctdb database context struct.
Michael Adam [Wed, 22 Dec 2010 13:50:53 +0000 (14:50 +0100)]
Add a delete_queue to the ctdb database context struct.

This list will be filled by the client using a new
delete control. The list will then be used to implement
a fast-path vacuuming that will traverse this list instead
of traversing the database.

13 years agocall: becoming dmaster in VACUUM_MIGRATION, set the VACUUM_MIGRATED record flag
Michael Adam [Fri, 10 Dec 2010 13:11:38 +0000 (14:11 +0100)]
call: becoming dmaster in VACUUM_MIGRATION, set the VACUUM_MIGRATED record flag

This temporary flag is used for the local record storage function to
decide whether to delete an empty record which has never been migrated
with data as part of the fast-path vacuuming process or, or to store
the record.

13 years agocall: hand the submitted record_flags to local record storage function.
Michael Adam [Fri, 10 Dec 2010 13:07:21 +0000 (14:07 +0100)]
call: hand the submitted record_flags to local record storage function.

13 years agocall: transfer the record flags in the ctdb call packets.
Michael Adam [Fri, 10 Dec 2010 13:02:33 +0000 (14:02 +0100)]
call: transfer the record flags in the ctdb call packets.

This way, the MIGRATED_WITH_DATA information can be transported
along with the records. This is important for vacuuming to function
properly.

The record flags are appended to the data section of the ctdb_req_dmaster
and ctdb_reply_dmaster structs.

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

13 years agoserver: in the VACUUM_FETCH handler, add the VACUUM_MIGRAION to the call flags
Michael Adam [Fri, 10 Dec 2010 12:59:37 +0000 (13:59 +0100)]
server: in the VACUUM_FETCH handler, add the VACUUM_MIGRAION to the call flags

This way, the records coming in via this handler, can be treated appropriately.
Namely, they can be deleted instead of being stored when the meet the fast-path
vacuuming criteria (empty, never migrated with data...)

13 years agoadd a new record flag CTDB_REC_FLAG_VACUUM_MIGRATED.
Michael Adam [Fri, 10 Dec 2010 12:57:01 +0000 (13:57 +0100)]
add a new record flag CTDB_REC_FLAG_VACUUM_MIGRATED.

This is to be used internally. The purpose is to flag a record
as been migrated by a VACUUM_MIGRATION, which is triggered by
a VACUUM_FETCH message as part of the vacuuming. The local store
routine will base its decision whether to delete or to store
the record (among other things) upon the value of this flag.

This flag should never be stored in the local database copies.

13 years agocall: Move definition of call flags down to the definition of the flags field.
Michael Adam [Fri, 10 Dec 2010 13:22:55 +0000 (14:22 +0100)]
call: Move definition of call flags down to the definition of the flags field.

13 years agocall: add new call flag CTDB_CALL_FLAG_VACUUM_MIGRATION
Michael Adam [Fri, 10 Dec 2010 13:24:40 +0000 (14:24 +0100)]
call: add new call flag CTDB_CALL_FLAG_VACUUM_MIGRATION

This is to be used when the CTDB_SRVID_VACUUM_FETCH message
triggers the migration of deleted records to the lmaster.
The lmaster can then delete records that have not been
migrated with data instead of storing them.

13 years agorecoverd: in a recovery, set the MIGRATED_WITH_DATA flag on all records
Michael Adam [Fri, 3 Dec 2010 14:24:06 +0000 (15:24 +0100)]
recoverd: in a recovery, set the MIGRATED_WITH_DATA flag on all records

Those records that are kept after recovery, are non-empty, and
stored identically on all nodes. So this is as if they had been
migrated with data.

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>