Search indexer low disk space - Event 80 (SharePoint Server 2010)
Applies to: SharePoint Server 2010
Alert Name: Search indexer low disk space
Event ID: 80
Summary: As the crawler searches content to create an index, it creates index files to use for retrieving search results. As more items are indexed, the index files grow in size:
Symptoms: Microsoft SharePoint Server 2010 displays the following symptoms while the crawler searches content:
The crawl does not progress and appears to stall.
The crawl logs show no new crawled documents.
This event appears in the event log: Event ID: 80 Description: <data> Very low disk space was detected for catalog <data>. Please free up some disk space so that crawling can continue.
Cause: One or more of the following issues might be the cause:
If the error was reported against a crawl component, the storage location associated with the crawl component is running out of space. Remove unnecessary files and folders on that drive to gain more disk space.
The storage location associated with the index of the query component is running out of space.
If the error was reported against a query component, the search application likely has outgrown the storage capacity. In this case, move the index that is associated with the query component to a larger storage device.
If the search application index contains more than 10 million items per query component, add another query group to the application, on a new server.
Resolution: Reclaim disk space for a crawl component
Use Disk Cleanup to delete temporary files on the drive where the index files are stored.
After Disk Cleanup is complete, test the performance of the crawler. If the crawler is not searching content, delete unnecessary files and folders on the selected drive.
Resolution: Gain disk space by moving the query component index
On the SharePoint Central Administration Web page, click General Application Settings and in the Search section, click Farm-wide Search Dashboard.
In the Search Service Application section, select the search application that generated the event, and then click Modify Topology.
On the Topology for Search Service Application page, click Query Component, and then click Edit Properties.
In the Location of Index box, specify the new storage path for the query component index.
Click OK, and then click Apply Topology Changes.
This operation could take several minutes or longer depending upon the size of the indexes.
The topology will move the index to new storage path and delete the previous index
Resolution: Gain disk space by adding an another index partition on a new application server
On the Central Administration page, click General Application Settings and in the Search section click Farm-wide Search Dashboard.
In the Search Service Application section, from the drop-down list select the search application that generated the event, and then click Modify Topology.
On the Topology for Search Service Application page, click New, and then click Index Partition and Query Component.
In the Add query component dialog box, in the Query Server box, select the new application server and then click OK.
Click Apply Topology Changes. The changes are processed for the search application.
The topology splits the existing index partition into the new set of index partitions equally.