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Applies to: 
SQL Server
Azure SQL Managed Instance
The sys.traces catalog view contains the current running traces on the system. This view is intended as a replacement for the fn_trace_getinfo function.
For a complete list of supported trace events, see SQL Server Event Class Reference.
Important
This feature will be removed in a future version of SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Use Extended Event catalog views instead.
| Column name | Data type | Description |
|---|---|---|
id |
int | Trace ID. |
status |
int | Trace status: 0 = stopped 1 = running |
path |
nvarchar(260) | Path of the trace file. This value is null when the trace is a rowset trace. |
max_size |
bigint | Maximum trace file size limit in megabytes (MB). This value is null when the trace is a rowset trace. |
stop_time |
datetime | Time to stop the running trace. |
max_files |
int | Maximum number of rollover files. This value is null if the Max number isn't set. |
is_rowset |
bit | 1 = rowset trace. |
is_rollover |
bit | 1 = rollover option is enabled. |
is_shutdown |
bit | 1 = shutdown option is enabled. |
is_default |
bit | 1 = default trace. |
buffer_count |
int | Number of in-memory buffers used by the trace. |
buffer_size |
int | Size of each buffer (KB). |
file_position |
bigint | Last trace file position. This value is null when the trace is a rowset trace. |
reader_spid |
int | Rowset trace reader session ID. This value is null when the trace is a file trace. |
start_time |
datetime | Trace start time. |
last_event_time |
datetime | Time the last event fired. |
event_count |
bigint | Total number of events that occurred. |
dropped_event_count |
int | Total number of events dropped. |
Permissions
The visibility of the metadata in catalog views is limited to securables that a user either owns, or on which the user was granted some permission. For more information, see Metadata Visibility Configuration.
Requires ALTER TRACE permission on the server.