SkyWalking is a monitoring tool, which collects metrics from a distributed system. In the real world, a very large distributed system includes hundreds of services, thousands of service instances. In that case, most likely, more than one group, even more than one company are maintaining and monitoring the distributed system. Each one of them takes charge of different parts, don’t want or shouldn’t share there metrics.
Namespace is the proposal from this.It is used for tracing and monitoring isolation.
Set the namespace
Set agent.namespace in agent config
# The agent namespace # agent.namespace=default-namespace
The default value of
agent.namespace is empty.
The default header key of SkyWalking is
sw8, more in this Cross Process Propagation Headers Protocol.
agent.namespace is set, the key changes to
The across process propagation chain breaks, when the two sides are using different namespace.