Semantic Conventions for Cassandra

Status: Experimental

The Semantic Conventions for Cassandra extend and override the Database Semantic Conventions that describe common database operations attributes in addition to the Semantic Conventions described on this page.

db.system MUST be set to "cassandra".

Call-level attributes

Attribute	Type	Description	Examples	Requirement Level
db.cassandra.consistency_level	string	The consistency level of the query. Based on consistency values from CQL.	all	Recommended
db.cassandra.coordinator.dc	string	The data center of the coordinating node for a query.	us-west-2	Recommended
db.cassandra.coordinator.id	string	The ID of the coordinating node for a query.	be13faa2-8574-4d71-926d-27f16cf8a7af	Recommended
db.cassandra.idempotence	boolean	Whether or not the query is idempotent.		Recommended
db.cassandra.page_size	int	The fetch size used for paging, i.e. how many rows will be returned at once.	5000	Recommended
db.cassandra.speculative_execution_count	int	The number of times a query was speculatively executed. Not set or 0 if the query was not executed speculatively.	0; 2	Recommended
db.cassandra.table	string	The name of the primary table that the operation is acting upon, including the keyspace name (if applicable). [1]	mytable	Recommended
db.name	string	The keyspace name in Cassandra. [2]	mykeyspace	Conditionally Required: If applicable.

[1]: This mirrors the db.sql.table attribute but references cassandra rather than sql. It is not recommended to attempt any client-side parsing of db.statement just to get this property, but it should be set if it is provided by the library being instrumented. If the operation is acting upon an anonymous table, or more than one table, this value MUST NOT be set.

[2]: For Cassandra the db.name should be set to the Cassandra keyspace name.

db.cassandra.consistency_level MUST be one of the following:

Value	Description
all	all
each_quorum	each_quorum
quorum	quorum
local_quorum	local_quorum
one	one
two	two
three	three
local_one	local_one
any	any
serial	serial
local_serial	local_serial