Cluster monitoring

Dashboard

Dashboard is a self-monitoring page that comes with LinDB, the internal real-time status of each component is available in the relevant dashboards

For specific metric descriptions, refer to Metric

Dashboard Dashboard

Dashboard	Description
Broker Query	Task, Request/Response
Ingestion	Broker ingestion traffic, io, duration
Broker Write	Broker write count、statistics
Broker Coordinator	Broker coordination monitoring
Master Coordinator	Master node coordination monitoring
Master Controller	Master election monitoring
Concurrent Pool	Concurrency pool monitoring
Concurrent Limit	Concurrency pool limiter
Network TCP	Connection, Traffic, I/O
Network GRPC	Client/Server Stream
Runtime	Golang runtime
System	Node system, such as CPU, memory, disk

Dashboard	Description
Storage Query	Task, Request/Response
WAL	Write Ahead Log(ingestion, writing, replication)
Local Replication	Consuming logs locally from WAL to write TSDB
Remote Replication	Storage leader consumes WAL logs and copies the data to the follower node
Storage Coordinator	Storage Coordination
TSDB Write	Family Write，Memory Database Write
TSDB Job	Flush Operation
KV Read	KV Read Traffic、Count
KV Write	KV Write Traffic、Count
KV Job	KV Flush, Compaction
Concurrent Pool	Concurrency pool
Network TCP	Connection, Traffic, I/O
Network GRPC	Client/Server Stream
Runtime	Go runtime
System	Node system, such as CPU, memory, disk

Database replication status mainly includes the following status:

Basic state information of the database, such as the number of replicas;
Replica distribution and replication status, such as channels delay information;
Local replication write.

There are 2 modes viewing replica status, which can be switched through the button on the right side of the Replication State:

Mode 1: Perspective of the distribution of replicas in each Storage node, and show whether there is a replication delay, mouse hover to a shard will display replication of each channel in it;

Replication shards Replication shards

Mode 2: Perspective of replication channels under all shards, Shard/Family related filtering and filtering is supported

Replication families Replication families

Write status of the local replica:

Write status of each memory-database;
Each leader's writing pointer status;
Mode 1: Perspective of writing status of all memory databases under all shards, Shard/Family related filtering and filtering is supported

Memory database write Memory database write