Re: multi-master changelog, tombstone entries

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On 03/08/2014 01:21 AM, Vesa Alho wrote:
Hi,

1. replication changelog
I've been running multi-master replication setup for a while and realised hadn't configured expiration (changelog max age). Now my changelog file is rather big and I would like get size down. I'm planning to delete changelog and start with a fresh one following these instructions: https://access.redhat.com/site/documentation/en-US/Red_Hat_Directory_Server/9.0/html/Administration_Guide/Managing_Replication-Deleting_the_Changelog.html

But since I have two multi-master servers, I was wondering what is the best way to start with a fresh changelog? Guide says I need to re-initialize consumers again, but if both multi-master servers get new data during replication is off, I'm worried I get into trouble when trying to get replication running again. In case there is a risk, I rather keep the current state.

You don't need to start with a fresh changelog. If you configure changelog trimming, it should eventually reduce the size of your changelog.


2. Tombstone entries
I was reading this:
https://access.redhat.com/site/documentation/en-US/Red_Hat_Directory_Server/9.0/html/Administration_Guide/tombstones.html
=>
I noticed that at least in 1.2.11.25 value nsDS5ReplicaTombstonePurgeInterval is not set at all. I guess because it depends on environment? But is there a reason why it's not directly visible in Console => Configuration => Replication (on the same page as changelog max age)? Just saying I would not have noticed tombstone purging unless reading administration guide carefully.

In general, for _all_ configuration parameters (not just replication, but general, password policy, database, suffix, chaining, etc. etc.), if the value is not set at all, its internal default value is used.


-Vesa
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