222 lines
11 KiB
Go
222 lines
11 KiB
Go
package sarama
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import (
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"errors"
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"fmt"
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)
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// ErrOutOfBrokers is the error returned when the client has run out of brokers to talk to because all of them errored
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// or otherwise failed to respond.
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var ErrOutOfBrokers = errors.New("kafka: client has run out of available brokers to talk to (Is your cluster reachable?)")
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// ErrClosedClient is the error returned when a method is called on a client that has been closed.
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var ErrClosedClient = errors.New("kafka: tried to use a client that was closed")
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// ErrIncompleteResponse is the error returned when the server returns a syntactically valid response, but it does
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// not contain the expected information.
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var ErrIncompleteResponse = errors.New("kafka: response did not contain all the expected topic/partition blocks")
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// ErrInvalidPartition is the error returned when a partitioner returns an invalid partition index
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// (meaning one outside of the range [0...numPartitions-1]).
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var ErrInvalidPartition = errors.New("kafka: partitioner returned an invalid partition index")
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// ErrAlreadyConnected is the error returned when calling Open() on a Broker that is already connected or connecting.
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var ErrAlreadyConnected = errors.New("kafka: broker connection already initiated")
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// ErrNotConnected is the error returned when trying to send or call Close() on a Broker that is not connected.
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var ErrNotConnected = errors.New("kafka: broker not connected")
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// ErrInsufficientData is returned when decoding and the packet is truncated. This can be expected
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// when requesting messages, since as an optimization the server is allowed to return a partial message at the end
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// of the message set.
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var ErrInsufficientData = errors.New("kafka: insufficient data to decode packet, more bytes expected")
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// ErrShuttingDown is returned when a producer receives a message during shutdown.
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var ErrShuttingDown = errors.New("kafka: message received by producer in process of shutting down")
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// ErrMessageTooLarge is returned when the next message to consume is larger than the configured Consumer.Fetch.Max
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var ErrMessageTooLarge = errors.New("kafka: message is larger than Consumer.Fetch.Max")
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// PacketEncodingError is returned from a failure while encoding a Kafka packet. This can happen, for example,
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// if you try to encode a string over 2^15 characters in length, since Kafka's encoding rules do not permit that.
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type PacketEncodingError struct {
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Info string
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}
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func (err PacketEncodingError) Error() string {
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return fmt.Sprintf("kafka: error encoding packet: %s", err.Info)
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}
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// PacketDecodingError is returned when there was an error (other than truncated data) decoding the Kafka broker's response.
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// This can be a bad CRC or length field, or any other invalid value.
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type PacketDecodingError struct {
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Info string
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}
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func (err PacketDecodingError) Error() string {
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return fmt.Sprintf("kafka: error decoding packet: %s", err.Info)
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}
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// ConfigurationError is the type of error returned from a constructor (e.g. NewClient, or NewConsumer)
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// when the specified configuration is invalid.
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type ConfigurationError string
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func (err ConfigurationError) Error() string {
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return "kafka: invalid configuration (" + string(err) + ")"
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}
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// KError is the type of error that can be returned directly by the Kafka broker.
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// See https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-ErrorCodes
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type KError int16
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// Numeric error codes returned by the Kafka server.
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const (
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ErrNoError KError = 0
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ErrUnknown KError = -1
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ErrOffsetOutOfRange KError = 1
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ErrInvalidMessage KError = 2
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ErrUnknownTopicOrPartition KError = 3
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ErrInvalidMessageSize KError = 4
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ErrLeaderNotAvailable KError = 5
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ErrNotLeaderForPartition KError = 6
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ErrRequestTimedOut KError = 7
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ErrBrokerNotAvailable KError = 8
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ErrReplicaNotAvailable KError = 9
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ErrMessageSizeTooLarge KError = 10
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ErrStaleControllerEpochCode KError = 11
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ErrOffsetMetadataTooLarge KError = 12
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ErrNetworkException KError = 13
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ErrOffsetsLoadInProgress KError = 14
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ErrConsumerCoordinatorNotAvailable KError = 15
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ErrNotCoordinatorForConsumer KError = 16
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ErrInvalidTopic KError = 17
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ErrMessageSetSizeTooLarge KError = 18
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ErrNotEnoughReplicas KError = 19
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ErrNotEnoughReplicasAfterAppend KError = 20
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ErrInvalidRequiredAcks KError = 21
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ErrIllegalGeneration KError = 22
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ErrInconsistentGroupProtocol KError = 23
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ErrInvalidGroupId KError = 24
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ErrUnknownMemberId KError = 25
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ErrInvalidSessionTimeout KError = 26
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ErrRebalanceInProgress KError = 27
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ErrInvalidCommitOffsetSize KError = 28
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ErrTopicAuthorizationFailed KError = 29
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ErrGroupAuthorizationFailed KError = 30
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ErrClusterAuthorizationFailed KError = 31
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ErrInvalidTimestamp KError = 32
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ErrUnsupportedSASLMechanism KError = 33
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ErrIllegalSASLState KError = 34
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ErrUnsupportedVersion KError = 35
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ErrTopicAlreadyExists KError = 36
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ErrInvalidPartitions KError = 37
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ErrInvalidReplicationFactor KError = 38
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ErrInvalidReplicaAssignment KError = 39
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ErrInvalidConfig KError = 40
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ErrNotController KError = 41
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ErrInvalidRequest KError = 42
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ErrUnsupportedForMessageFormat KError = 43
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ErrPolicyViolation KError = 44
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)
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func (err KError) Error() string {
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// Error messages stolen/adapted from
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// https://kafka.apache.org/protocol#protocol_error_codes
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switch err {
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case ErrNoError:
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return "kafka server: Not an error, why are you printing me?"
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case ErrUnknown:
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return "kafka server: Unexpected (unknown?) server error."
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case ErrOffsetOutOfRange:
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return "kafka server: The requested offset is outside the range of offsets maintained by the server for the given topic/partition."
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case ErrInvalidMessage:
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return "kafka server: Message contents does not match its CRC."
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case ErrUnknownTopicOrPartition:
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return "kafka server: Request was for a topic or partition that does not exist on this broker."
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case ErrInvalidMessageSize:
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return "kafka server: The message has a negative size."
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case ErrLeaderNotAvailable:
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return "kafka server: In the middle of a leadership election, there is currently no leader for this partition and hence it is unavailable for writes."
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case ErrNotLeaderForPartition:
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return "kafka server: Tried to send a message to a replica that is not the leader for some partition. Your metadata is out of date."
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case ErrRequestTimedOut:
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return "kafka server: Request exceeded the user-specified time limit in the request."
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case ErrBrokerNotAvailable:
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return "kafka server: Broker not available. Not a client facing error, we should never receive this!!!"
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case ErrReplicaNotAvailable:
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return "kafka server: Replica information not available, one or more brokers are down."
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case ErrMessageSizeTooLarge:
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return "kafka server: Message was too large, server rejected it to avoid allocation error."
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case ErrStaleControllerEpochCode:
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return "kafka server: StaleControllerEpochCode (internal error code for broker-to-broker communication)."
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case ErrOffsetMetadataTooLarge:
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return "kafka server: Specified a string larger than the configured maximum for offset metadata."
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case ErrNetworkException:
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return "kafka server: The server disconnected before a response was received."
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case ErrOffsetsLoadInProgress:
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return "kafka server: The broker is still loading offsets after a leader change for that offset's topic partition."
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case ErrConsumerCoordinatorNotAvailable:
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return "kafka server: Offset's topic has not yet been created."
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case ErrNotCoordinatorForConsumer:
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return "kafka server: Request was for a consumer group that is not coordinated by this broker."
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case ErrInvalidTopic:
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return "kafka server: The request attempted to perform an operation on an invalid topic."
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case ErrMessageSetSizeTooLarge:
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return "kafka server: The request included message batch larger than the configured segment size on the server."
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case ErrNotEnoughReplicas:
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return "kafka server: Messages are rejected since there are fewer in-sync replicas than required."
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case ErrNotEnoughReplicasAfterAppend:
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return "kafka server: Messages are written to the log, but to fewer in-sync replicas than required."
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case ErrInvalidRequiredAcks:
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return "kafka server: The number of required acks is invalid (should be either -1, 0, or 1)."
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case ErrIllegalGeneration:
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return "kafka server: The provided generation id is not the current generation."
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case ErrInconsistentGroupProtocol:
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return "kafka server: The provider group protocol type is incompatible with the other members."
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case ErrInvalidGroupId:
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return "kafka server: The provided group id was empty."
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case ErrUnknownMemberId:
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return "kafka server: The provided member is not known in the current generation."
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case ErrInvalidSessionTimeout:
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return "kafka server: The provided session timeout is outside the allowed range."
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case ErrRebalanceInProgress:
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return "kafka server: A rebalance for the group is in progress. Please re-join the group."
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case ErrInvalidCommitOffsetSize:
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return "kafka server: The provided commit metadata was too large."
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case ErrTopicAuthorizationFailed:
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return "kafka server: The client is not authorized to access this topic."
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case ErrGroupAuthorizationFailed:
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return "kafka server: The client is not authorized to access this group."
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case ErrClusterAuthorizationFailed:
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return "kafka server: The client is not authorized to send this request type."
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case ErrInvalidTimestamp:
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return "kafka server: The timestamp of the message is out of acceptable range."
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case ErrUnsupportedSASLMechanism:
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return "kafka server: The broker does not support the requested SASL mechanism."
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case ErrIllegalSASLState:
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return "kafka server: Request is not valid given the current SASL state."
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case ErrUnsupportedVersion:
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return "kafka server: The version of API is not supported."
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case ErrTopicAlreadyExists:
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return "kafka server: Topic with this name already exists."
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case ErrInvalidPartitions:
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return "kafka server: Number of partitions is invalid."
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case ErrInvalidReplicationFactor:
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return "kafka server: Replication-factor is invalid."
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case ErrInvalidReplicaAssignment:
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return "kafka server: Replica assignment is invalid."
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case ErrInvalidConfig:
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return "kafka server: Configuration is invalid."
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case ErrNotController:
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return "kafka server: This is not the correct controller for this cluster."
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case ErrInvalidRequest:
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return "kafka server: This most likely occurs because of a request being malformed by the client library or the message was sent to an incompatible broker. See the broker logs for more details."
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case ErrUnsupportedForMessageFormat:
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return "kafka server: The requested operation is not supported by the message format version."
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case ErrPolicyViolation:
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return "kafka server: Request parameters do not satisfy the configured policy."
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}
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return fmt.Sprintf("Unknown error, how did this happen? Error code = %d", err)
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}
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