SQL Server object stored in tempdb used to support various data-versioning operations.
2
votes
0answers
152 views
Phantom Transactions using Version Store in tempDB
We are seeing version store space increasing on one of our servers, and there are ~20 sessions that are showing as actively accessing version store rows for over 24 hours. The problem is, when I try ...
8
votes
1answer
553 views
In case of multiple updates of the same record in a single transaction, how many versions are being stored?
According to MSDN article by Kimberly L. Tripp, Neal Graves's "SQL Server 2005 Row Versioning-Based Transaction Isolation
"... All the earlier versions of a particular record are chained in a linked ...
6
votes
1answer
133 views
Does RCSI use less or same space than SNAPSHOT? Why?
Trying to better understand row-versioning based transaction isolations - RCSI (Read Committed Snapshot Isolation and SNAPSHOT) - in SQL Server...
MSDN online article "Choosing Row Versioning-based ...
4
votes
1answer
135 views
Why do row-versioning isolations use a linked list of versions of record? [closed]
Trying to better understand row-versioning based transaction isolations in SQL Server...
According to Kimberly L. Tripp, Neal Graves's "SQL Server 2005 Row Versioning-Based Transaction Isolation":
...
6
votes
2answers
2k views
TempDB Version Store cleanup
From what I can find the version store will only clean up versions that are older than the oldest active transaction. Question: Is the oldest transaction database specific or will SQL Server keep all ...
2
votes
1answer
65 views
Why - read but not update ops fail in case of lacking space in tempdb database?
MSDN online article "Choosing Row Versioning-based Isolation Levels" states:
"tempdb must have enough disk space for the version store. If there are very long-running transactions, all the ...
5
votes
1answer
2k views
Find transactions that are filling up the version store
we have enabled the "READ_COMMITTED_SNAPSHOT" for some of our SQL Server 2005 databases.
Now from time to time we see that our TempDB is filling up the harddisk and we suspect the version store to be ...
