This process continues until the transaction has completed (committed) at which time the data in the log cache is immediately written to the physical log file. When SQL Server is in the act of flushing the log cache to disk, the session will wait on the WRITELOG wait type. Getting more ...
CMsqlExecContext::ExecuteStmts<1,1>+4ea CMsqlExecContext::FExecute+a33 CSQLSource::Execute+866 SOS_Task::PostWait+90 SQLServerLogMgr::WaitLCFlush+1d5 SQLServerLogMgr::LogFlush+1ee SQLServerLogMgr::WaitLogFlush+18 BPool::PageReadyToWrite+3df ...
When I looked into his Wait Stats (sys.dm_os_wait_stats), WRITELOG was the top wait type in terms of total wait time. I explained about the WRITELOG wait type and conditions when LOG Blocks will be flushed to disk to Cx. (These details are available in SQLCAT blog given above) To...
The hotfix will not resolve the issue completely. However, additional diagnostic information (based on type and error severity) may be logged in the SQL Server error logs when the issue occurs again. You have to identify the actual exception and fix it with the help of additio...
The hotfix will not resolve the issue completely. However, additional diagnostic information (based on type and error severity) may be logged in the SQL Server error logs when the issue occurs again. You have to identify the...
There is no SAN here, no HBA, etc... everything local. 8 SSD in a raid 10 array and 1 volume. as i stated in my first post this is a fast I/O subsystem. i ran your queries and nothing is back after multiple runs. i don't have I/O Latch wait types in my ...
The distinction between these two wait types is subtle but very helpful in tuning your Always On environment. The committing of a transaction means the log block must be written locally as well as remotely for synchronous replicas. When in synchronized state this involves specific ...
The distinction between these two wait types is subtle but very helpful in tuning your Always On environment. The committing of a transaction means the log block must be written locally as well as remotely for synchronous replicas. When in synchronized state this involves specific wa...
Solved: Hi experts, Our users complain SAP on SQL becomes slow sometimes recently. I check wait event and find WRITELOG become top 1 in wait events. This never happened
First published on MSDN on Apr 26, 2013 The distinction between these two wait types is subtle but very helpful in tuning your Always On environment.