ERROR Could not update index entry. Action: 'Saved'

Question

We've just taken over a site based in Sitecore and the log file has this occurring every 1 - 5 mins throughout the day.

Anyone seen anything like this before and know what the cause and solution could be? The site also suffers from a slowdown issue on 1 page load occurring ever few mins which could be related.

ManagedPoolThread #7 10:10:41 INFO Starting update of index for the database 'master' (1 pending). ManagedPoolThread #7 10:10:41 ERROR Could not update index entry. Action: 'Saved', Item: '{0D80F9BA-5BBB-4A43-8B87-63E7A0F9A484}' Exception: System.IO.IOException Message: read past EOF Source: Lucene.Net at Lucene.Net.Store.BufferedIndexInput.Refill() at Lucene.Net.Store.BufferedIndexInput.ReadByte() at Lucene.Net.Store.IndexInput.ReadInt() at Lucene.Net.Index.SegmentInfos.Read(Directory directory, String segmentFileName) at Lucene.Net.Index.IndexFileDeleter..ctor(Directory directory, IndexDeletionPolicy policy, SegmentInfos segmentInfos, TextWriter infoStream, DocumentsWriter docWriter) at Lucene.Net.Index.DirectoryIndexReader.DoCommit() at Lucene.Net.Index.IndexReader.Commit() at Lucene.Net.Index.IndexReader.DecRef() at Lucene.Net.Index.IndexReader.Close() at Sitecore.Search.Crawlers.DatabaseCrawler.DeleteItem(Item item) at Sitecore.Search.Crawlers.DatabaseCrawler.UpdateItem(Item item) at Sitecore.Search.Crawlers.DatabaseCrawler.Provider_OnUpdateItem(Object sender, EventArgs e) at System.EventHandler.Invoke(Object sender, EventArgs e) at Sitecore.Data.Managers.IndexingProvider.UpdateItem(HistoryEntry entry, Database database) at Sitecore.Data.Managers.IndexingProvider.UpdateIndex(HistoryEntry entry, Database database)

ManagedPoolThread #7 10:10:41 INFO Update of index for the database 'master' done.

Answer 1

Looks like a corrupt index to me. My first choice would be to do a full "rebuild indexes" on the server where these logs are being generated. Started from Sitecore Control Panel -> Databases.