Alert Name: Search relegate query component
Event ID: 58
Summary: To support high availability, we recommend that multiple query components
be created in the same query group. If a query component fails, the Microsoft
Search Server 2010 service (OSearch) relegates the operations of the failed
component to another query component to continue to serve queries.
Symptoms: Microsoft SharePoint Server 2010 experiences the following
symptoms when serving queries:
Under high query load there may be
a decrease in query throughput.
This event appears in the event log: Event ID: 58
Description: Query component <data> has been taken out of rotation due to
this error: <data>. It will be retried in <data> seconds.
<data>
Note:
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The event details identifies the query component as
<GUID>-<Query Component number>, for example “baebc6d3-4a2e-4584-9ff7-ad8866debe92-query-30”. To identify the query component,
use the second part, “query-30”.
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Cause: A query component was taken out of rotation for the reason presented in
the event error message.
Resolution: Restart the search service
1. Propagation to the affected query component will be
automatically retried in the time period given in the event. If the retry
attempt fails, stop and restart the Microsoft Search Server 2010 service
(OSearch) by opening a Command Prompt window and type net stop osearch14 to
stop the search service. Type net start osearch14 to restart the search
service.
If failure persists, add a new query component as a mirror in
the same query group as the failed query component.
Resolution: Add a new query component
1. On the SharePoint Central
Administration Web site, click General Application Settings and in the Search
section click Farm-wide Search Dashboard.
2. In the Search Application
Topology section find the search application that generated the event, and
then click Modify Topology.
3. On the Topology for Search
Application: <searchappname> page, select the failed query component from
the topology list, and then click Add Mirror.
4. In the Add query component dialog
box, select the query server and associated metadata database for the new query
component, and then click OK.
5. Click Apply Topology Changes.
The changes are processed for the search application and the index is copied
from the failed query component to the new query component.
6. Click the failed query component
and click Delete.
7. The topology removes the index from the failed query
component and deletes the index.