由于SQL Server中的事务日志已满，无法删除索引

Question

When I try to delete the index with the following command:

DROP INDEX [ClusteredColumnStoreIndex-20180619-104559] ON [dbo].[Transactions]

I get this error:

Msg 9002, Level 17, State 4, Line 4
The transaction log for database 'Metrics' is full due to 'ACTIVE_TRANSACTION'.

There disk that the database is on is also out of space at this point.

Can someone help me delete this index?

Answer 1

use below techiniques

1) Make sure the transaction log has been backed up and truncated before running large-scale index operations online, and that the log has sufficient space to store the projected index and user transactions.

2) Consider setting the SORT_IN_TEMPDB option to ON for the index operation. This separates the index transactions from the concurrent user transactions. The index transactions will be stored in the tempdb transaction log, and the concurrent user transactions will be stored in the transaction log of the user database. This allows for the transaction log of the user database to be truncated during the index operation if it is required. Additionally, if the tempdb log is not on the same disk as the user database log, the two logs are not competing for the same disk space.

Note

Verify that the tempdb database and transaction log have sufficient disk space to handle the index operation. The tempdb transaction log cannot be truncated until the index operation is completed.

3) Use a database recovery model that allows for minimal logging of the index operation. This may reduce the size of the log and prevent the log from filling the log space.

4) Do not run the online index operation in an explicit transaction. The log will not be truncated until the explicit transaction ends.