Limitations – Google Search Appliance Configuring Distributed Crawling and Serving version 6.14 and later User Manual
Page 5
Google Search Appliance: Configuring Distributed Crawling and Serving
5
You can use GSA mirroring with a distributed crawling and serving configuration. If a master or
nonmaster primary node in the distributed crawling configuration fails, you can promote the mirror
node to function as a primary node in the distributed crawling and serving configuration.
Limitations
The following limitations apply to distributed crawling and serving in this release.
•
All search appliances must be in the same data center. If you need to serve results from
geographically dispersed locations and have other scalability and serving needs, consider GSA
Unification (see Configuring GSA Unification).
•
Each document is stored on a single node in a distributed crawling and serving configuration. If a
node fails, all documents stored on that node will be missing from the search results. To ensure that
all documents are included in search results after a node failure, configure GSA Mirroring (see
Configuring GSA Mirroring) for the nodes in the distributing crawling and serving configuration.
•
All feeds must be processed by the master node. This can create a performance bottleneck if you
have a large number of content feeds.
•
You can use Google Search Appliance connectors with Distributed Crawling and Serving. However,
Google recommends that you use an external connector manager and connector, installed on a
separate host computer, rather than the internal connectors, which are not fully supported. For
information about using external connectors, see the appropriate
•
You cannot create both a unified environment and distributed crawling and serving on the same set
of search appliances. Configure a unified environment or distributed crawling and serving.
•
Composite collections work only with unified environments. Do not create composite collections
when you have distributed crawling and serving enabled.
•
In this release, Distributed Crawling and Serving does not work with inherited ACLs.