[MarkLogic Dev General] Local-disk forest failover

Wayne Feick Wayne.Feick at marklogic.com
Thu Aug 16 10:33:39 PDT 2012


A slight refinement; replicas are equivalent copies rather than exact copies. You'll have the same fragments, but likely organized differently into stands.

Wayne


Michael Blakeley <mike at blakeley.com> wrote:


No on both questions. Forest replication is just like RAID-1. You set up the mirrors, and they are exact copies.

This underscores the importance of monitoring. You want to find out about a forest failure immediately - not weeks later, when the replica fails and the whole database goes offline.

-- Mike

On 16 Aug 2012, at 08:00 , Danny Sinang wrote:

> Hi,
>
> When a local-disk failover happens, will the replica forest (which just became the primary forest) need to reindex ?
>
> Also, will the surviving cluster node try to replicate the new forest to some other cluster members  ?
>
> Regards,
> Danny
>
>
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