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| author | Amitay Isaacs <amitay@gmail.com> | 2013-10-28 18:49:51 +1100 |
|---|---|---|
| committer | Amitay Isaacs <amitay@gmail.com> | 2013-10-28 18:51:22 +1100 |
| commit | fc7f3358437b5b6d27b4e03ee477a9e7406b87e3 (patch) | |
| tree | 4ca4571d1153daef7eef77f213144acbed993578 /ctdb | |
| parent | a5c4794048e47e7db1d831adb77fb88f9e1ff8ac (diff) | |
| download | samba-fc7f3358437b5b6d27b4e03ee477a9e7406b87e3.tar.gz | |
daemon: Change the default recovery method for persistent databases
Use sequence numbers to do recovery for persistent databases instead of
RSNs. This fixes the problem of registry corruption during recovery.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
(This used to be ctdb commit 56486d1c01cc8ad0e4b8cee7a22429e72e50f03d)
Diffstat (limited to 'ctdb')
| -rw-r--r-- | ctdb/doc/ctdbd.1.xml | 11 | ||||
| -rw-r--r-- | ctdb/server/ctdb_tunables.c | 2 |
2 files changed, 8 insertions, 5 deletions
diff --git a/ctdb/doc/ctdbd.1.xml b/ctdb/doc/ctdbd.1.xml index 111a8f40ca4..75974cf708d 100644 --- a/ctdb/doc/ctdbd.1.xml +++ b/ctdb/doc/ctdbd.1.xml @@ -1049,11 +1049,9 @@ </refsect2> <refsect2><title>RecoverPDBBySeqNum</title> - <para>Default: 0</para> + <para>Default: 1</para> <para> - When set to non-zero, this will change how the recovery process for - persistent databases ar performed. By default, when performing a database - recovery, for normal as for persistent databases, recovery is + When set to zero, database recovery for persistent databases is record-by-record and recovery process simply collects the most recent version of every individual record. </para> @@ -1063,6 +1061,11 @@ highest value stored in the record "__db_sequence_number__" is selected and the copy of that nodes database is used as the recovered database. </para> + <para> + By default, recovery of persistent databses is done using + __db_sequence_number__ record. + </para> + </refsect2> <refsect2><title>FetchCollapse</title> diff --git a/ctdb/server/ctdb_tunables.c b/ctdb/server/ctdb_tunables.c index 5fb4344e2b7..4c139ea2a60 100644 --- a/ctdb/server/ctdb_tunables.c +++ b/ctdb/server/ctdb_tunables.c @@ -72,7 +72,7 @@ static const struct { { "StatHistoryInterval", 1, offsetof(struct ctdb_tunable, stat_history_interval), false }, { "DeferredAttachTO", 120, offsetof(struct ctdb_tunable, deferred_attach_timeout), false }, { "AllowClientDBAttach", 1, offsetof(struct ctdb_tunable, allow_client_db_attach), false }, - { "RecoverPDBBySeqNum", 0, offsetof(struct ctdb_tunable, recover_pdb_by_seqnum), false }, + { "RecoverPDBBySeqNum", 1, offsetof(struct ctdb_tunable, recover_pdb_by_seqnum), false }, { "DeferredRebalanceOnNodeAdd", 300, offsetof(struct ctdb_tunable, deferred_rebalance_on_node_add) }, { "FetchCollapse", 1, offsetof(struct ctdb_tunable, fetch_collapse) }, { "HopcountMakeSticky", 50, offsetof(struct ctdb_tunable, hopcount_make_sticky) }, |