Crawling: Slow crawling and slow copying between the indexer and the search nodes (FAST Search Server 2010 for SharePoint)
Applies To: FAST Search 2010
Published: February 21, 2012
Issue: Crawling in SharePoint is very slow when indexing content on a multi-server FAST Search Server 2010 for SharePoint farm.
Summary: FAST Search Server 2010 for SharePoint relies on a fast and stable network connection for internal communication. This communication is secured with IPSec and it is configured during the FAST Search Server 2010 for SharePoint post-configuration. If you experience unexpected slow crawling and indexing, this article explains the probable cause and how to resolve this issue.
Symptom: Slow crawling and slow copying between the indexer and the search nodes
Note: |
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| The issue is typically seen in virtualized environments, but can also occur in physical environments. |
Cause: The Task offload setting may be enabled on the FAST Search Server 2010 for SharePoint servers.
Resolution: Check the status of the Task offload setting and disable it if it is enabled
To check the status of the Task offload setting:
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On all FAST Search servers, open a command promt as an administrator, and type the following commands(s):
For IPv4, type: “netsh int ipv4 show global” For IPv6, type: “netsh int ipv6 show global”
To disable the Task offload setting:
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On all FAST Search servers, open a command promt as an administrator, and type the following command:
“netsh int ip set global taskoffload=disabled”
where ip is the protocol version, either ipv4 or ipv6, where ipv4 is default
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Reinitialize the network adapter or restart the server.
Change History
| Date | Description |
|---|---|
| February 21, 2012 | Initial publication |

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