Meta Subsystem

Metanode is the manager of meta partitions and replicated by MultiRaft. Each metanode manages various of partitions. Each partition covers an inode range, and maintains two in-memory btrees: inode btree and dentry btree.

Properties

Key	Type	Description	Mandatory
role	string	Role of process and must be set to metanode	Yes
listen	string	Listen and accept port of the server	Yes
prof	string	pprof port	Yes
logLevel	string	Level operation for logging. Default is error	No
metadataDir	string	metaNode store snapshot directory”	Yes
logDir	string	log directory	Yes
raftDir	string	raft wal directory	Yes
raftHeartbeatPort	string	raft heartbeat port	Yes
raftReplicaPort	string	raft replicate port	Yes
consulAddr	string	Addresses of monitor system	No
exporterPort	string	Port for monitor system	No
masterAddrs	string	Addresses of master server	Yes

Example:

{
     "role": "metanode",
     "listen": "9021",
     "prof": "9092",
     "logLevel": "debug",
     "metadataDir": "/export/cfs/metanode_meta",
     "logDir": "/export/Logs/cfs/metanode",
     "raftDir": "/export/cfs/metanode_raft",
     "raftHeartbeatPort": "9093",
     "raftReplicaPort": "9094",
     "consulAddr": "http://consul.prometheus-cfs.local",
      "exporterPort": 9511,
     "masterAddrs": [
         "192.168.31.173:80",
         "192.168.31.141:80",
         "192.168.30.200:80"
     ]
 }