EndpointStateTracker MBean

Observes state of other nodes using the gossiper. Use to blacklist a node and other operations that include node health, workload, and status.

The EndpointStateTracker MBean is identified by the following path:
com.datastax.bdp:name=EndpointStateTracker,type=core,name=EndpointStateTracker
This MBean has an attribute to blacklist a node and operations that include node health, workload, and status.

Attributes

Blacklisted
Boolean attribute to remove a node from the list of searchable nodes while it's being diagnosed, repaired, reindexed, and verified as healthy.
Sets blacklisted status that is gossiped around the cluster and used during the replica selection phase of distributed search queries.
  • true - forcibly rank this node below active nodes for distributed search queries
  • false - make this node eligible for selection during distributed search queries.
ServerID
String that identifies the server ID of a local node.

MBean operations

The arguments for the operations are strings for the IP address, except where noted.

getNodeHealth
Gets the node health for a given IP address.
getWorkloads
Gets the workload type of a remote endpoint. Persists between restarts.
getDatacenter
Gets the datacenter for the given endpoint, basing on the information from the Gossiper or information saved in the Cassandra system table. Persists between restarts.
getActiveStatus
Gets active status for the given endpoint. A node is active when the server and required plugins are all started. Computed at runtime.
getServerId
Gets the DSE multi-instance server ID for a remote endpoint. Persists between restarts.
getCoreIndexingStatus
Gets the dynamic indexing status (INDEXING, FINISHED, or FAILED) of the search index of a given endpoint. Computed at runtime.
getRing
Takes a single argument, the keyspace. Returns information about every node in the cluster. Computed at runtime.
getIsGraphServer
Returns true if graph is enabled for the given endpoint. Computed at runtime.
vnodesEnabled
Returns true if vnodes are enabled. Computed at runtime.
getBlacklistedStatus
Indicates when a node is removed from node from the list of searchable nodes. Persists between restarts.
Note: The gossip state is persisted locally. Set the Blacklisted attribute to remove the blacklisting status.
You can also use the nodetool sjk command to blacklist a node.