[Samba] a question about tdb record backup for ctdb failover

[sun yekuan]

OK, thank you!  I have another question:

what the current CTDB have done for transparent failover ? achieved  fully or partially?
if CTDB has not achieved fully,  what else we should do ?

thank you!
best wishes!

From: Amitay Isaacs<mailto:amitay at gmail.com>
Date: 2016-10-11 13:43
To: sun yekuan<mailto:sunyekuan at outlook.com>
Subject: Re: Re: [Samba] a question about tdb record backup for ctdb failover
On Tue, Oct 11, 2016 at 3:34 PM, sun yekuan <sunyekuan at outlook.com<mailto:sunyekuan at outlook.com>> wrote:
thank you for your answer!

    As i know, the latest record was stored in DMASTER node. When the LMASTER and DMASTER are all dead because of some reasons,  TDB will not recovery to the lastest.

    what i exactly want to know is that when a record was store in DMASTER,  can other nodes have the copy of the record?

    can CTDB guarantee no data lose?

thank you very much!


Volatile database data model is designed to be lossy.

If a node goes away, all the SMB clients connected to that node also go away and any changes made in TDB record are not relevant.

If you want persistent data, then you should use persistent database.

Amitay.