Google Search Appliance Configuring Distributed Crawling and Serving version 7.2 - Manual (Page 13)

Google Search Appliance: Configuring Distributed Crawling and Serving 13
Recovering from Node Failure When GSA Mirroring is
Not Enabled
To recover from a node failure when GSA mirroring is not enabled, you must add a new Google Search
Appliance to the configuration. If you do not have an additional search appliance, delete and recreate
the distributed crawling and serving configuration and recrawl the content.
When the Failed Node is the Master Node
To recover from a node failure when GSA mirroring is not enabled and the failed node is the master
node:
1. To promote any non-master node as master node, log in to the Admin Console of a non-master
node and click Content Sources > Diagnostics > Crawl Status > Pause Crawl.
2. On all nodes, click GSA
n
> Configuration and click Disable GSA
n
.
3. Re-configure GSA n distributed crawling and serving by adding the new node as a non-master node.
4. Click Apply Configuration. This broadcasts the configuration data to all appliances in the GSA n
network. Note that document serving will be interrupted briefly on the master node after you click
Apply Configuration.
When the Failed Node is Not the Master Node
To recover from a node failure when GSA mirroring is not enabled and the failed node is not the master
node:
1. Log in to the Admin Console of the master search appliance in the distributed crawling
configuration.
2. Click GSA n > Configuration.
3. Edit the shard containing the failed node.
4. Delete the failed node.
5. Click Save.
6. Add the new search appliance to the configuration.
7. Click Save.
8. Click the GSA n Configuration link.
9. Click Apply Configuration. This broadcasts the configuration data to all appliances in the GSA n
network. Note that document serving will be interrupted briefly on the master node after you click
Apply Configuration.