Contents
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API docs index
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Cassandra namespace
- Cluster namespace
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Exception namespace
- AlreadyExistsException class
- AuthenticationException class
- ConfigurationException class
- DivideByZeroException class
- DomainException class
- ExecutionException class
- InvalidArgumentException class
- InvalidQueryException class
- InvalidSyntaxException class
- IsBootstrappingException class
- LogicException class
- OverloadedException class
- ProtocolException class
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- RuntimeException class
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- TruncateException class
- UnauthorizedException class
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UnavailableException class
- UnpreparedException class
- ValidationException class
- WriteTimeoutException class
- RetryPolicy namespace
- SSLOptions namespace
- TimestampGenerator namespace
- Type namespace
- Future interface
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- DefaultAggregate class
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- DefaultKeyspace class
- DefaultSchema class
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- Duration class
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- Cassandra class
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Cassandra namespace
Exception\UnavailableException
is raised when a coordinator detected that there aren’t enough replica nodes available to fulfill the request.
NOTE: Request has not even been forwarded to the replica nodes in this case.
- See Also:
- https://github.com/apache/cassandra/blob/cassandra-2.1/doc/native_protocol_v1.spec#L667-L677 Description of the Unavailable error in the native protocol v1 spec.