ClientPolicymaxConnsPerNode Field

Maximum number of synchronous connections allowed per server node. Transactions will go through retry logic and potentially fail with "ResultCode.NO_MORE_CONNECTIONS" if the maximum number of connections would be exceeded.

The number of connections used per node depends on how many concurrent threads issue database commands plus sub-threads used for parallel multi-node commands (batch, scan, and query). One connection will be used for each thread.

See asyncMaxConnsPerNode to configure max connections for asynchronous commands.

Default: 100

public int maxConnsPerNode