Add Support for Multiple ObjectNames #42
Description
Is your feature request related to a problem? Please describe.
There is an issue when multiple mbeans are under different object names but are similar enough that they could be given the same metric name and differentiated through labels. This isn't possible currently because when a second call to instrument with the same metric name happens, it overrides the previous call to instrument.
EX:
def beanActiveTasks = otel.mbeans("org.apache.cassandra.metrics:type=ThreadPools,path=*,scope=*,name=PendingTasks")
otel.instrument(beanActiveTasks, "cassandra.current_tasks", "Number of tasks in queue with the given task status.", "1",
["stage_name":{ mbean -> mbean.name().getKeyProperty("scope")},
"task_status":{"pending"}],
"Value", otel.&doubleValueObserver)
def beanPendingTasks = otel.mbeans("org.apache.cassandra.metrics:type=ThreadPools,path=*,scope=*,name=ActiveTasks")
otel.instrument(beanPendingTasks, "cassandra.current_tasks", "Number of tasks in queue with the given task status.", "1",
["stage_name":{ mbean -> mbean.name().getKeyProperty("scope")},
"task_status":{"active"}],
"Value", otel.&doubleValueObserver)
Here is where there are two different calls to instrument with the same metric name. They end up overriding each other when passed through.
Describe the solution you'd like
A way to make this possible is by adding an additional signature to otel.mbeans( ) that allows multiple object names to be passed in.
EX:
def beanActiveTasks = otel.mbeans(["org.apache.cassandra.metrics:type=ThreadPools,path=*,scope=*,name=PendingTasks",
"org.apache.cassandra.metrics:type=ThreadPools,path=*,scope=*,name=ActiveTasks"])
otel.instrument(beanActiveTasks, "cassandra.current_tasks", "Number of tasks in queue with the given task status.", "1",
["stage_name":{ mbean -> mbean.name().getKeyProperty("scope")},
"task_status":{ mbean -> mbean.name().getKeyProperty("name")}],
"Value", otel.&doubleValueObserver)