Data sources - yb

This is an overview of the data sources, the type of daemon where it comes from, the ports (if default), and the http endpoint it is using.

Datasource	Type	Default Port(s)	Endpoint
Metrics	tserver/master	7000,9000,12000,13000	/metrics
Statements	tserver	13000	/statements
Metrics	node-exporter	9300	/metrics
Gflags	tserver/master	7000,9000	/varz
Vars	tserver/master	7000,9000	/api/v1/varz
Threads	tserver/master	7000,9000	/threadz
Mem-trackers	tserver/master	7000,9000	/mem-trackers
Logging	tserver/master	7000,9000	/logs
Version	tserver/master	7000,9000	/api/v1/version
Entities	master	7000	/dump-entities
Masters	master	7000	/api/v1/masters
Tablet-servers	master	7000	/api/v1/tablet-servers
RPCs	tserver/master	7000,9000,12000,13000	/rpcz
Pprof	tserver/master	7000,9000	/pprof/growth
Memory breakdown	tserver/master	7000,9000	/memz

Based on the datasources, these are the options for the differences sources:

Datasource	Snapshot	Ad-hoc	Diff	Print snap	Print ad-hoc	Raw
Metrics	✅	✅	✅	❌	❌	❌
Statement	✅	✅	✅	❌	❌	❌
Metrics	✅	✅	✅	❌	❌	❌
Gflags	✅	❌	❌	✅	❌	❌
Vars	✅	✅	✅	✅	✅	❌
Thread	✅	❌	❌	✅	❌	❌
Mem-trackers	✅	❌	❌	✅	❌	❌
Logging	✅	❌	❌	✅	❌	❌
Version	✅	✅	✅	✅	✅	❌
Entities	✅	✅	✅	✅	✅	❌
Masters	✅	✅	✅	✅	✅	❌
Tablet-servers	✅	✅	✅	✅	✅	❌
RPCs	✅	❌	❌	✅	❌	❌
Pprof	✅	❌	❌	❌	❌	✅
Memory breakdown	✅	❌	❌	❌	❌	✅

Snapshot: datasources is captured with the snapshot command.
Ad-hoc: the datasources that are involved in an ad-hoc (non-snapshot) use.
Diff: the datasources that are involved in a snapshot-diff use. This is identical to ad-hoc, but the data taken from snapshots, instead of 'live'.
Print: the datasources that are queryable via a yb_stats print- command.
Raw: the datasources that are captured in the snapshot directory, but require reading the file directly, no print or diff command exists.

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