compression_type string compression.type Specify the final compression type for a given topic. This configuration accepts the standard compression codecs ('gzip', 'snappy', 'lz4', 'zstd'). It additionally accepts 'uncompressed' which is equivalent to no compression; and 'producer' which means retain the original compression codec set by the producer. |
group_initial_rebalance_delay_ms integer group.initial.rebalance.delay.ms The amount of time, in milliseconds, the group coordinator will wait for more consumers to join a new group before performing the first rebalance. A longer delay means potentially fewer rebalances, but increases the time until processing begins. The default value for this is 3 seconds. During development and testing it might be desirable to set this to 0 in order to not delay test execution time. |
group_min_session_timeout_ms integer group.min.session.timeout.ms The minimum allowed session timeout for registered consumers. Longer timeouts give consumers more time to process messages in between heartbeats at the cost of a longer time to detect failures. |
group_max_session_timeout_ms integer group.max.session.timeout.ms The maximum allowed session timeout for registered consumers. Longer timeouts give consumers more time to process messages in between heartbeats at the cost of a longer time to detect failures. |
connections_max_idle_ms integer connections.max.idle.ms Idle connections timeout: the server socket processor threads close the connections that idle for longer than this. |
max_incremental_fetch_session_cache_slots integer max.incremental.fetch.session.cache.slots The maximum number of incremental fetch sessions that the broker will maintain. |
message_max_bytes integer message.max.bytes The maximum size of message that the server can receive. |
offsets_retention_minutes integer offsets.retention.minutes Log retention window in minutes for offsets topic |
log_cleaner_delete_retention_ms integer log.cleaner.delete.retention.ms How long are delete records retained? |
log_cleaner_min_cleanable_ratio number log.cleaner.min.cleanable.ratio Controls log compactor frequency. Larger value means more frequent compactions but also more space wasted for logs. Consider setting log.cleaner.max.compaction.lag.ms to enforce compactions sooner, instead of setting a very high value for this option. |
log_cleaner_max_compaction_lag_ms integer min: 30000
max: 9223372036854776000 log.cleaner.max.compaction.lag.ms The maximum amount of time message will remain uncompacted. Only applicable for logs that are being compacted |
log_cleaner_min_compaction_lag_ms integer log.cleaner.min.compaction.lag.ms The minimum time a message will remain uncompacted in the log. Only applicable for logs that are being compacted. |
log_cleanup_policy string log.cleanup.policy The default cleanup policy for segments beyond the retention window |
log_flush_interval_messages integer min: 1
max: 9223372036854776000 log.flush.interval.messages The number of messages accumulated on a log partition before messages are flushed to disk |
log_flush_interval_ms integer log.flush.interval.ms The maximum time in ms that a message in any topic is kept in memory before flushed to disk. If not set, the value in log.flush.scheduler.interval.ms is used |
log_index_interval_bytes integer log.index.interval.bytes The interval with which Kafka adds an entry to the offset index |
log_index_size_max_bytes integer min: 1048576
max: 104857600 log.index.size.max.bytes The maximum size in bytes of the offset index |
log_local_retention_ms integer min: -2
max: 9223372036854776000 log.local.retention.ms The number of milliseconds to keep the local log segments before it gets eligible for deletion. If set to -2, the value of log.retention.ms is used. The effective value should always be less than or equal to log.retention.ms value. |
log_local_retention_bytes integer min: -2
max: 9223372036854776000 log.local.retention.bytes The maximum size of local log segments that can grow for a partition before it gets eligible for deletion. If set to -2, the value of log.retention.bytes is used. The effective value should always be less than or equal to log.retention.bytes value. |
log_message_downconversion_enable boolean log.message.downconversion.enable This configuration controls whether down-conversion of message formats is enabled to satisfy consume requests. |
log_message_timestamp_type string log.message.timestamp.type Define whether the timestamp in the message is message create time or log append time. |
log_message_timestamp_difference_max_ms integer log.message.timestamp.difference.max.ms The maximum difference allowed between the timestamp when a broker receives a message and the timestamp specified in the message |
log_preallocate boolean log.preallocate Should pre allocate file when create new segment? |
log_retention_bytes integer min: -1
max: 9223372036854776000 log.retention.bytes The maximum size of the log before deleting messages |
log_retention_hours integer log.retention.hours The number of hours to keep a log file before deleting it |
log_retention_ms integer min: -1
max: 9223372036854776000 log.retention.ms The number of milliseconds to keep a log file before deleting it (in milliseconds), If not set, the value in log.retention.minutes is used. If set to -1, no time limit is applied. |
log_roll_jitter_ms integer log.roll.jitter.ms The maximum jitter to subtract from logRollTimeMillis (in milliseconds). If not set, the value in log.roll.jitter.hours is used |
log_roll_ms integer min: 1
max: 9223372036854776000 log.roll.ms The maximum time before a new log segment is rolled out (in milliseconds). |
log_segment_bytes integer min: 10485760
max: 1073741824 log.segment.bytes The maximum size of a single log file |
log_segment_delete_delay_ms integer log.segment.delete.delay.ms The amount of time to wait before deleting a file from the filesystem |
auto_create_topics_enable boolean auto.create.topics.enable Enable auto creation of topics |
min_insync_replicas integer min.insync.replicas When a producer sets acks to 'all' (or '-1'), min.insync.replicas specifies the minimum number of replicas that must acknowledge a write for the write to be considered successful. |
num_partitions integer num.partitions Number of partitions for autocreated topics |
default_replication_factor integer default.replication.factor Replication factor for autocreated topics |
replica_fetch_max_bytes integer min: 1048576
max: 104857600 replica.fetch.max.bytes The number of bytes of messages to attempt to fetch for each partition (defaults to 1048576). This is not an absolute maximum, if the first record batch in the first non-empty partition of the fetch is larger than this value, the record batch will still be returned to ensure that progress can be made. |
replica_fetch_response_max_bytes integer min: 10485760
max: 1048576000 replica.fetch.response.max.bytes Maximum bytes expected for the entire fetch response (defaults to 10485760). Records are fetched in batches, and if the first record batch in the first non-empty partition of the fetch is larger than this value, the record batch will still be returned to ensure that progress can be made. As such, this is not an absolute maximum. |
max_connections_per_ip integer max.connections.per.ip The maximum number of connections allowed from each ip address (defaults to 2147483647). |
producer_purgatory_purge_interval_requests integer producer.purgatory.purge.interval.requests The purge interval (in number of requests) of the producer request purgatory(defaults to 1000). |
sasl_oauthbearer_expected_audience string sasl.oauthbearer.expected.audience The (optional) comma-delimited setting for the broker to use to verify that the JWT was issued for one of the expected audiences. |
sasl_oauthbearer_expected_issuer string sasl.oauthbearer.expected.issuer Optional setting for the broker to use to verify that the JWT was created by the expected issuer. |
sasl_oauthbearer_jwks_endpoint_url string sasl.oauthbearer.jwks.endpoint.url OIDC JWKS endpoint URL. By setting this the SASL SSL OAuth2/OIDC authentication is enabled. See also other options for SASL OAuth2/OIDC. |
sasl_oauthbearer_sub_claim_name string sasl.oauthbearer.sub.claim.name Name of the scope from which to extract the subject claim from the JWT. Defaults to sub. |
socket_request_max_bytes integer min: 10485760
max: 209715200 socket.request.max.bytes The maximum number of bytes in a socket request (defaults to 104857600). |
transaction_state_log_segment_bytes integer min: 1048576
max: 2147483647 transaction.state.log.segment.bytes The transaction topic segment bytes should be kept relatively small in order to facilitate faster log compaction and cache loads (defaults to 104857600 (100 mebibytes)). |
transaction_remove_expired_transaction_cleanup_interval_ms integer transaction.remove.expired.transaction.cleanup.interval.ms The interval at which to remove transactions that have expired due to transactional.id.expiration.ms passing (defaults to 3600000 (1 hour)). |
transaction_partition_verification_enable boolean transaction.partition.verification.enable Enable verification that checks that the partition has been added to the transaction before writing transactional records to the partition |