kafka 没有保留 7 天的日志

Question

我正在使用 kafka2.11 我正在粘贴我的 server.properties。我有 3 个 kafka 集群节点

############################# Server Basics #############################

# The id of the broker. This must be set to a unique integer for each broker.

broker.id=1
#broker.rack=1

############################# Socket Server Settings #############################

# Hostname and port the broker will advertise to producers and consumers. If not set,
# it uses the value for "listeners" if configured.  Otherwise, it will use the value
# returned from java.net.InetAddress.getCanonicalHostName().
advertised.listeners=PLAINTEXT://xx.xx.xx.xx:9092

# The number of threads that the server uses for processing requests, which may include disk I/O
num.io.threads=8
# The send buffer (SO_SNDBUF) used by the socket server
socket.send.buffer.bytes=102400

# The receive buffer (SO_RCVBUF) used by the socket server
socket.receive.buffer.bytes=102400

# The maximum size of a request that the socket server will accept (protection against OOM)
socket.request.max.bytes=104857600


############################# Log Basics #############################

# A comma separated list of directories under which to store log files
log.dirs=/home/kafka_data/

# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.
# This value is recommended to be increased for installations with data dirs located in RAID array.
num.recovery.threads.per.data.dir=1
num.replica.fetchers=1
############################# Internal Topic Settings  #############################
# The replication factor for the group metadata internal topics "__consumer_offsets" and "__transaction_state"
# For anything other than development testing, a value greater than 1 is recommended to ensure availability such as 3.
offsets.topic.replication.factor=3
transaction.state.log.replication.factor=3
transaction.state.log.min.isr=3

############################# Log Flush Policy #############################

#log.flush.interval.messages=10000

# The maximum amount of time a message can sit in a log before we force a flush
#log.flush.interval.ms=1000

############################# Log Retention Policy #############################


# The minimum age of a log file to be eligible for deletion due to age
log.retention.hours=168

# A size-based retention policy for logs. Segments are pruned from the log unless the remaining
# segments drop below log.retention.bytes. Functions independently of log.retention.hours.
log.retention.bytes=1000000

# The maximum size of a log segment file. When this size is reached a new log segment will be created.
log.segment.bytes=1073741824

# The interval at which log segments are checked to see if they can be deleted according
# to the retention policies
log.retention.check.interval.ms=300000

############################# Zookeeper #############################

# Zookeeper connection string (see zookeeper docs for details).
# This is a comma separated host:port pairs, each corresponding to a zk
# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".
# You can also append an optional chroot string to the urls to specify the
# root directory for all kafka znodes.
zookeeper.connect=xx.xx.xx.xx:2181,xx.xx.xx.xx:2181,xx.xx.xx.xx:2181/kafka

# Timeout in ms for connecting to zookeeper
zookeeper.connection.timeout.ms=18000


############################# Group Coordinator Settings #############################

# The following configuration specifies the time, in milliseconds, that the GroupCoordinator will delay the initial consumer rebalance.
# The rebalance will be further delayed by the value of group.initial.rebalance.delay.ms as new members join the group, up to a maximum of max.poll.interval.ms.
# The default value for this is 3 seconds.
# We override this to 0 here as it makes for a better out-of-the-box experience for development and testing.
# However, in production environments the default value of 3 seconds is more suitable as this will help to avoid unnecessary, and potentially expensive, rebalances during application startup.

group.initial.rebalance.delay.ms=0
###################### Topic configuration ##############################
delete.topic.enable=true
num.partitions=3
default.replication.factor=3
auto.create.topic.enable=false

# Enables automatic leader balancing.
auto.leader.rebalance.enable=true
# The frequency with which the partition rebalance check is triggered by the controller
leader.imbalance.check.interval.seconds=60
#offsets.topic.replication.factor=1
############################## REPLICA SETTING ##########################i#######
# max wait time for each fetcher request issued by follower replicas
replica.fetch.wait.max.ms=300
#replica.fetch.min.bytes=1
# If a follower hasn't sent any fetch requests or hasn't consumed up to the leaders log end offset for at least this time, the leader will remove the follower from isr
replica.lag.time.max.ms=30000
# The socket receive buffer for network requests
replica.socket.receive.buffer.bytes=1000000
# The socket timeout for network requests.
replica.socket.timeout.ms=30000
# The configuration controls the maximum amount of time the client will wait for the response of a request. If the response is not received
# before the timeout elapses the client will resend the request if necessary or fail the request if retries are exhausted.
request.timeout.ms=30000
metadata.max.age.ms=30000
####################### PRODUCER CONFIG ##################################
acks=all
#unclean.leader.election.enable=false
message.max.bytes=1000000000
fetch.message.max.bytes=1000000000
replica.fetch.max.bytes=1000000000
unclean.leader.election.enable=true
#enable.idempotence = true
#message.send.max.retries= 10000000
#max.in.flight.requests.per.connection=1

我设置了log.retention.hours=168，即保留 7 天 我通过创建新组并添加 --from-beginning 属性来消耗数据，但我有 4 天的日志。

bin/kafka-consumer-groups.sh --describe --group consumer2 --bootstrap-server lc-helk.nic.in:9092

TOPIC           PARTITION  CURRENT-OFFSET  LOG-END-OFFSET  LAG
ise             2          1114176         1114176         0   
ise             0          1113757         1113757         0
ise             1          1113627         1113627         0

在日志条目中，我看到 7 月 17 日，21 条日志，它应该显示 7 月 13 日，21 条日志

如果我想更改此 kafka 主题配置，如何在现有 kafka 主题中更改此配置。

Answer 1

主题保留由 3 个属性配置（除了其他一些属性）：

• log.retention.bytes
• log.retention.hours
• log.cleanup.policy

我可以看到您设置了 log.retention.bytes=1000000 您是否尝试将其设置为 -1 ？