sin/samba-mirror
1
0
Fork 0
mirror of https://github.com/samba-team/samba.git synced 2025-01-11 05:18:09 +03:00
Code

ctdb-doc: Add documentation for missing tunables

Browse Source 
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This commit is contained in:
Amitay Isaacs 2016-03-08 14:37:41 +11:00 committed by Amitay Isaacs
parent e2539088e0
commit 3680aba212
1 changed files with 55 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
ctdb/doc/ctdb-tunables.7.xml
View File

@ -44,6 +44,16 @@
</para>
</refsect2>
<refsect2>
<title>AllowUnhealthyDBRead</title>
<para>Default: 0</para>
<para>
When set to 1, ctdb allows database traverses to read unhealthy
databases. By default, ctdb does not allow reading records from
unhealthy databases.
</para>
</refsect2>
<refsect2>
<title>ControlTimeout</title>
<para>Default: 60</para>
@ -267,6 +277,17 @@
</para>
</refsect2>
<refsect2>
<title>LockProcessesPerDB</title>
<para>Default: 200</para>
<para>
This is the maximum number of lock helper processes ctdb will
create for obtaining record locks. When ctdb cannot get a record
lock without blocking, it creates a helper process that waits
for the lock to be obtained.
</para>
</refsect2>
<refsect2>
<title>LogLatencyMs</title>
<para>Default: 0</para>
@ -279,6 +300,16 @@
</para>
</refsect2>
<refsect2>
<title>MaxQueueDropMsg</title>
<para>Default: 1000000</para>
<para>
This is the maximum number of messages to be queued up for
a client before ctdb will treat the client as hung and will
terminate the client connection.
</para>
</refsect2>
<refsect2>
<title>MonitorInterval</title>
<para>Default: 15</para>
@ -349,6 +380,19 @@
</para>
</refsect2>
<refsect2>
<title>PullDBPreallocation</title>
<para>Default: 10*1024*1024</para>
<para>
This is the size of a record buffer to pre-allocate for sending
reply to PULLDB control. Usually record buffer starts with size
of the first record and gets reallocated every time a new record
is added to the record buffer. For a large number of records,
this can be very inefficient to grow the record buffer one record
at a time.
</para>
</refsect2>
<refsect2>
<title>RecdFailCount</title>
<para>Default: 10</para>
@ -551,6 +595,17 @@
</para>
</refsect2>
<refsect2>
<title>TDBMutexEnabled</title>
<para>Default: 0</para>
<para>
This paramter enables TDB_MUTEX_LOCKING feature on volatile
databases if the robust mutexes are supported. This optimizes the
record locking using robust mutexes and is much more efficient
that using posix locks.
</para>
</refsect2>
<refsect2>
<title>TickleUpdateInterval</title>
<para>Default: 20</para>