Showing posts with label Performance Issues. Show all posts
Showing posts with label Performance Issues. Show all posts

Why SQL Server SPID is blocking itself


Hi All

Issue: SPID is blocking itself

Description: On one of our server SQL 2005 i have run one maintainence (update statistics)job in morning hours on a businessday and as it should not create any issues i was monitoring server health. After executing job i found spid 64(belongs to job)  is blocking itself.and after some time it went off

Affects of Snapshot Isolation Level and Tempdb datafile full


Affects of Snapshot Isolation Level on Tempdb

Last weekend we face an issue where we got alert due tempdb datafile is 95.05% full, which is as usual for weekend but there is one thing unusual we found that log file was only 4 % full.

We thought there could be 2 possible reasons.

1. Sorting.  
2. Row versioning