59 lines
2.3 KiB
YAML
59 lines
2.3 KiB
YAML
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# Copyright IBM Corp. All Rights Reserved.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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version: '2'
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services:
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zookeeper:
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image: hyperledger/fabric-zookeeper
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restart: always
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ports:
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- '2181'
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- '2888'
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- '3888'
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kafka:
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image: hyperledger/fabric-kafka
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restart: always
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environment:
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# ========================================================================
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# Reference: https://kafka.apache.org/documentation/#configuration
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# ========================================================================
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#
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# socket.request.max.bytes
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# The maximum number of bytes in a socket request. ATTN: If you set this
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# env var, make sure to update `brokerConfig.Producer.MaxMessageBytes` in
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# `newBrokerConfig()` in `fabric/orderer/kafka/config.go` accordingly.
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#- KAFKA_SOCKET_REQUEST_MAX_BYTES=104857600 # 100 * 1024 * 1024 B
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#
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# message.max.bytes
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# The maximum size of envelope that the broker can receive.
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- KAFKA_MESSAGE_MAX_BYTES=103809024 # 99 * 1024 * 1024 B
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#
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# replica.fetch.max.bytes
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# The number of bytes of messages to attempt to fetch for each channel.
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# This is not an absolute maximum, if the fetched envelope is larger than
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# this value, the envelope will still be returned to ensure that progress
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# can be made. The maximum message size accepted by the broker is defined
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# via message.max.bytes above.
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- KAFKA_REPLICA_FETCH_MAX_BYTES=103809024 # 99 * 1024 * 1024 B
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#
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# unclean.leader.election.enable
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# Data consistency is key in a blockchain environment. We cannot have a
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# leader chosen outside of the in-sync replica set, or we run the risk of
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# overwriting the offsets that the previous leader produced, and --as a
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# result-- rewriting the blockchain that the orderers produce.
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- KAFKA_UNCLEAN_LEADER_ELECTION_ENABLE=false
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#
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# log.retention.ms
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# Until the ordering service in Fabric adds support for pruning of the
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# Kafka logs, time-based retention should be disabled so as to prevent
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# segments from expiring. (Size-based retention -- see
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# log.retention.bytes -- is disabled by default so there is no need to set
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# it explicitly.)
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- KAFKA_LOG_RETENTION_MS=-1
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ports:
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- '9092'
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