public class BusyPoolException extends DriverException implements CoordinatorException
This happens if the pool has no connections (for example if it's currently reconnecting to its
host), or if all connections have reached their maximum number of in flight queries. The query
will be retried on the next host in the
This exception is a symptom that the driver is experiencing a high workload. If it happens regularly on all hosts, you should consider tuning one (or a combination of) the following pooling options:
PoolingOptions.setMaxRequestsPerConnection(HostDistance, int): maximum number of requests per connection;
PoolingOptions.setMaxConnectionsPerHost(HostDistance, int): maximum number of connections in the pool;
PoolingOptions.setMaxQueueSize(int): maximum number of enqueued requests before this exception is thrown.
|Constructor and Description|
|Modifier and Type||Method and Description|
Copy the exception.
The full address of the coordinator host that was contacted.
The coordinator host that was contacted.
addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
public BusyPoolException(InetSocketAddress address, int queueSize)
public InetAddress getHost()
This is a shortcut for
public InetSocketAddress getAddress()
public BusyPoolException copy()
This returns a new exception, equivalent to the original one, except that because a new object is created in the current thread, the top-most element in the stacktrace of the exception will refer to the current thread (this is mainly intended for internal use by the driver). The cause of the copied exception will be the original exception.
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