This topic introduces the root coordinator-related configurations of Milvus.
Root coordinator (root coord) handles data definition language (DDL) and data control language (DCL) requests, manages TSO (timestamp Oracle), and publishes time tick messages.
Under this section, you can configure root coord address, index building threshold, etc.
rootCoord.address
Description
Default Value
TCP/IP address of root coordinator.
Root coordinator monitors all IPv4 addresses if this parameter is set as 0.0.0.0.
localhost
rootCoord.port
Description
Default Value
TCP port of root coordinator.
53100
rootCoord.grpc.serverMaxRecvSize
Description
Default Value
The maximum size of each RPC request that the root coord can receive.
Unit: Byte
2147483647
rootCoord.grpc.serverMaxSendSize
Description
Default Value
The maximum size of each respond the root coord can send when receiving an RPC request.
Unit: Byte
2147483647
rootCoord.grpc.clientMaxRecvSize
Description
Default Value
The maximum size of each respond that the root coord can receive when sending an RPC request.
Unit: Byte
104857600
rootCoord.grpc.clientMaxSendSize
Description
Default Value
The maximum size of each RPC request that the root coord can send.
Unit: Byte
104857600
rootCoord.dmlChannelNum
Description
Default Value
The number of DML-Channels to create at the root coord startup.
256
rootCoord.maxPartitionNum
Description
Default Value
The maximum number of partitions in each collection.
New partitions cannot be created if this parameter is set as 0 or 1.
Range: [0, INT64MAX]
4096
rootCoord.minSegmentSizeToEnableIndex
Description
Default Value
The minimum row count of a segment required for creating index.
Segments with smaller size than this parameter will not be indexed, and will be searched with brute force.
