PHP trace context in queries
Adding trace context to application queries provides the ability to correlate the queries from a traced transaction, and if sampled, the queries to the transaction trace detail. This feature is also a requirement for the integration of APM with DBO.
Enabling
Trace context propagation to queries is disabled by default. It can be enabled in the PHP Library using this configuration option:
-
solarwinds-apm.sqltagger: This option must be set to 1.
Support Matrix
Trace context is inserted only for statements from a transaction sampled for detailed tracing.
Trace context is not inserted into server-side prepared statements and stored procedures.
| Database type | Client library/framework |
|---|---|
| MySQL | PDO
MySQLi |
| PostgreSQL | PDO |