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我正在使用Heroku Kafka，它運行0.10.1.1並使用SSL。他們只支持最新的協議。配置Kafka客戶端連接發出的SSL密鑰/ cert
Heroku Kafka使用SSL進行身份驗證和問題以及客戶端證書和密鑰，並提供CA證書。我分別放置在這些中client_cert.pem，client_key.pem，和trusted_cert.pem，跑建立密鑰庫的情況如下：
openssl pkcs12 -export -in client_cert.pem -inkey client_key.pem -certfile client_cert.pem -out client.p12
keytool -importkeystore -srckeystore client.p12 -srcstoretype pkcs12 -destkeystore kafka.keystore.jks -deststoretype JKS
keytool -keystore kafka.truststore.jks -alias CARoot -import -file trusted_cert.pem
我然後創建client-ssl.properties含有下列：
ssl.protocol=SSL
security.protocol=SSL
ssl.truststore.location=kafka.truststore.jks
ssl.truststore.type=JKS
ssl.truststore.password=xxxx
ssl.keystore.location=kafka.keystore.jks
ssl.keystore.type=JKS
ssl.keystore.password=xxxx
ssl.key.password=xxxx
我然後使用kafka-console-producer（版本0.10 .1.1）與以下內容：
kafka-console-producer --broker-list kafka+ssl://a.a.a.a:9096,kafka+ssl://b.b.b.b:9096,kafka+ssl://c.c.c.c:9096 --producer.config client-ssl.properties --topic robintest
（該主題已被robintest創建。）
[2017-01-31 10:06:50,385] INFO ProducerConfig values:
acks = 1
batch.size = 16384
block.on.buffer.full = false
bootstrap.servers = [kafka+ssl://a.a.a.a:9096, kafka+ssl://b.b.b.b:9096, kafka+ssl://c.c.c.c:9096]
buffer.memory = 33554432
client.id = console-producer
compression.type = none
connections.max.idle.ms = 540000
interceptor.classes = null
key.serializer = class org.apache.kafka.common.serialization.ByteArraySerializer
linger.ms = 1000
max.block.ms = 60000
max.in.flight.requests.per.connection = 5
max.request.size = 1048576
metadata.fetch.timeout.ms = 60000
metadata.max.age.ms = 300000
metric.reporters = []
metrics.num.samples = 2
metrics.sample.window.ms = 30000
partitioner.class = class org.apache.kafka.clients.producer.internals.DefaultPartitioner
receive.buffer.bytes = 32768
reconnect.backoff.ms = 50
request.timeout.ms = 1500
retries = 3
retry.backoff.ms = 100
sasl.kerberos.kinit.cmd = /usr/bin/kinit
sasl.kerberos.min.time.before.relogin = 60000
sasl.kerberos.service.name = null
sasl.kerberos.ticket.renew.jitter = 0.05
sasl.kerberos.ticket.renew.window.factor = 0.8
sasl.mechanism = GSSAPI
security.protocol = SSL
send.buffer.bytes = 102400
ssl.cipher.suites = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
ssl.endpoint.identification.algorithm = null
ssl.key.password = [hidden]
ssl.keymanager.algorithm = SunX509
ssl.keystore.location = kafka.keystore.jks
ssl.keystore.password = [hidden]
ssl.keystore.type = JKS
ssl.protocol = SSL
ssl.provider = null
ssl.secure.random.implementation = null
ssl.trustmanager.algorithm = PKIX
ssl.truststore.location = kafka.truststore.jks
ssl.truststore.password = [hidden]
ssl.truststore.type = JKS
timeout.ms = 30000
value.serializer = class org.apache.kafka.common.serialization.ByteArraySerializer
(org.apache.kafka.clients.producer.ProducerConfig)
[2017-01-31 10:06:50,390] INFO ProducerConfig values:
acks = 1
batch.size = 16384
block.on.buffer.full = false
bootstrap.servers = [kafka+ssl://a.a.a.a:9096, kafka+ssl://b.b.b.b:9096, kafka+ssl://c.c.c.c:9096]
buffer.memory = 33554432
client.id = console-producer
compression.type = none
connections.max.idle.ms = 540000
interceptor.classes = null
key.serializer = class org.apache.kafka.common.serialization.ByteArraySerializer
linger.ms = 1000
max.block.ms = 60000
max.in.flight.requests.per.connection = 5
max.request.size = 1048576
metadata.fetch.timeout.ms = 60000
metadata.max.age.ms = 300000
metric.reporters = []
metrics.num.samples = 2
metrics.sample.window.ms = 30000
partitioner.class = class org.apache.kafka.clients.producer.internals.DefaultPartitioner
receive.buffer.bytes = 32768
reconnect.backoff.ms = 50
request.timeout.ms = 1500
retries = 3
retry.backoff.ms = 100
sasl.kerberos.kinit.cmd = /usr/bin/kinit
sasl.kerberos.min.time.before.relogin = 60000
sasl.kerberos.service.name = null
sasl.kerberos.ticket.renew.jitter = 0.05
sasl.kerberos.ticket.renew.window.factor = 0.8
sasl.mechanism = GSSAPI
security.protocol = SSL
send.buffer.bytes = 102400
ssl.cipher.suites = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
ssl.endpoint.identification.algorithm = null
ssl.key.password = [hidden]
ssl.keymanager.algorithm = SunX509
ssl.keystore.location = kafka.keystore.jks
ssl.keystore.password = [hidden]
ssl.keystore.type = JKS
ssl.protocol = SSL
ssl.provider = null
ssl.secure.random.implementation = null
ssl.trustmanager.algorithm = PKIX
ssl.truststore.location = kafka.truststore.jks
ssl.truststore.password = [hidden]
ssl.truststore.type = JKS
timeout.ms = 30000
value.serializer = class org.apache.kafka.common.serialization.ByteArraySerializer
(org.apache.kafka.clients.producer.ProducerConfig)
[2017-01-31 10:06:50,396] DEBUG Added sensor with name bufferpool-wait-time (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,398] DEBUG Added sensor with name buffer-exhausted-records (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,399] DEBUG Updated cluster metadata version 1 to Cluster(id = null, nodes = [b.b.b.b:9096 (id: -2 rack: null), c.c.c.c:9096 (id: -3 rack: null), a.a.a.a:9096 (id: -1 rack: null)], partitions = []) (org.apache.kafka.clients.Metadata)
[2017-01-31 10:06:50,457] DEBUG Added sensor with name connections-closed: (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,457] DEBUG Added sensor with name connections-created: (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,457] DEBUG Added sensor with name bytes-sent-received: (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,457] DEBUG Added sensor with name bytes-sent: (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,458] DEBUG Added sensor with name bytes-received: (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,458] DEBUG Added sensor with name select-time: (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,459] DEBUG Added sensor with name io-time: (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,462] DEBUG Added sensor with name batch-size (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,462] DEBUG Added sensor with name compression-rate (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,462] DEBUG Added sensor with name queue-time (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,462] DEBUG Added sensor with name request-time (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,464] DEBUG Added sensor with name produce-throttle-time (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,465] DEBUG Added sensor with name records-per-request (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,465] DEBUG Added sensor with name record-retries (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,465] DEBUG Added sensor with name errors (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,465] DEBUG Added sensor with name record-size-max (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:50,467] DEBUG Starting Kafka producer I/O thread. (org.apache.kafka.clients.producer.internals.Sender)
[2017-01-31 10:06:50,468] INFO Kafka version : 0.10.1.1 (org.apache.kafka.common.utils.AppInfoParser)
[2017-01-31 10:06:50,468] INFO Kafka commitId : f10ef2720b03b247 (org.apache.kafka.common.utils.AppInfoParser)
[2017-01-31 10:06:50,468] DEBUG Kafka producer started (org.apache.kafka.clients.producer.KafkaProducer)
在這一點上，我發送一個記錄，然後按回車。
[2017-01-31 10:06:53,194] DEBUG Initialize connection to node -2 for sending metadata request (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,194] DEBUG Initiating connection to node -2 at b.b.b.b:9096. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,457] DEBUG Added sensor with name node--2.bytes-sent (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:53,457] DEBUG Added sensor with name node--2.bytes-received (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:53,458] DEBUG Added sensor with name node--2.latency (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:53,460] DEBUG Created socket with SO_RCVBUF = 33304, SO_SNDBUF = 102808, SO_TIMEOUT = 0 to node -2 (org.apache.kafka.common.network.Selector)
[2017-01-31 10:06:53,463] DEBUG Completed connection to node -2 (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,692] DEBUG Sending metadata request {topics=[robintest]} to node -2 (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,724] DEBUG Connection with ec2-34-194-25-39.compute-1.amazonaws.com/b.b.b.b disconnected (org.apache.kafka.common.network.Selector)
java.io.EOFException
at org.apache.kafka.common.network.SslTransportLayer.read(SslTransportLayer.java:488)
at org.apache.kafka.common.network.NetworkReceive.readFromReadableChannel(NetworkReceive.java:81)
at org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:71)
at org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:154)
at org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:135)
at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:343)
at org.apache.kafka.common.network.Selector.poll(Selector.java:291)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:260)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:236)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:135)
at java.lang.Thread.run(Thread.java:745)
[2017-01-31 10:06:53,728] DEBUG Node -2 disconnected. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,728] WARN Bootstrap broker b.b.b.b:9096 disconnected (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,729] DEBUG Initialize connection to node -1 for sending metadata request (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,729] DEBUG Initiating connection to node -1 at a.a.a.a:9096. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,791] DEBUG Added sensor with name node--1.bytes-sent (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:53,792] DEBUG Added sensor with name node--1.bytes-received (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:53,792] DEBUG Added sensor with name node--1.latency (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:53,792] DEBUG Created socket with SO_RCVBUF = 33304, SO_SNDBUF = 102808, SO_TIMEOUT = 0 to node -1 (org.apache.kafka.common.network.Selector)
[2017-01-31 10:06:53,792] DEBUG Completed connection to node -1 (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:53,994] DEBUG Sending metadata request {topics=[robintest]} to node -1 (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,025] DEBUG Connection with ec2-34-194-39-35.compute-1.amazonaws.com/a.a.a.a disconnected (org.apache.kafka.common.network.Selector)
java.io.EOFException
at org.apache.kafka.common.network.SslTransportLayer.read(SslTransportLayer.java:488)
at org.apache.kafka.common.network.NetworkReceive.readFromReadableChannel(NetworkReceive.java:81)
at org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:71)
at org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:154)
at org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:135)
at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:343)
at org.apache.kafka.common.network.Selector.poll(Selector.java:291)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:260)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:236)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:135)
at java.lang.Thread.run(Thread.java:745)
[2017-01-31 10:06:54,026] DEBUG Node -1 disconnected. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,026] WARN Bootstrap broker a.a.a.a:9096 disconnected (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,027] DEBUG Initialize connection to node -3 for sending metadata request (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,027] DEBUG Initiating connection to node -3 at c.c.c.c:9096. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,102] DEBUG Added sensor with name node--3.bytes-sent (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:54,103] DEBUG Added sensor with name node--3.bytes-received (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:54,103] DEBUG Added sensor with name node--3.latency (org.apache.kafka.common.metrics.Metrics)
[2017-01-31 10:06:54,104] DEBUG Created socket with SO_RCVBUF = 33304, SO_SNDBUF = 102808, SO_TIMEOUT = 0 to node -3 (org.apache.kafka.common.network.Selector)
[2017-01-31 10:06:54,104] DEBUG Completed connection to node -3 (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,309] DEBUG Sending metadata request {topics=[robintest]} to node -3 (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,342] DEBUG Connection with ec2-34-194-45-119.compute-1.amazonaws.com/c.c.c.c disconnected (org.apache.kafka.common.network.Selector)
java.io.EOFException
at org.apache.kafka.common.network.SslTransportLayer.read(SslTransportLayer.java:488)
at org.apache.kafka.common.network.NetworkReceive.readFromReadableChannel(NetworkReceive.java:81)
at org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:71)
at org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:154)
at org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:135)
at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:343)
at org.apache.kafka.common.network.Selector.poll(Selector.java:291)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:260)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:236)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:135)
at java.lang.Thread.run(Thread.java:745)
[2017-01-31 10:06:54,342] DEBUG Node -3 disconnected. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,343] WARN Bootstrap broker c.c.c.c:9096 disconnected (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,343] DEBUG Initialize connection to node -1 for sending metadata request (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,343] DEBUG Initiating connection to node -1 at a.a.a.a:9096. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,348] DEBUG Initialize connection to node -2 for sending metadata request (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,348] DEBUG Initiating connection to node -2 at b.b.b.b:9096. (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,376] DEBUG Created socket with SO_RCVBUF = 33304, SO_SNDBUF = 102808, SO_TIMEOUT = 0 to node -2 (org.apache.kafka.common.network.Selector)
[2017-01-31 10:06:54,377] DEBUG Completed connection to node -2 (org.apache.kafka.clients.NetworkClient)
[2017-01-31 10:06:54,379] DEBUG Created socket with SO_RCVBUF = 33304, SO_SNDBUF = 102808, SO_TIMEOUT = 0 to node -1 (org.apache.kafka.common.network.Selector)
[2017-01-31 10:06:54,379] DEBUG Completed connection to node -1 (org.apache.kafka.clients.NetworkClient)
這些條目會一直進行下去，直到我終止進程。
我已經嘗試了所有配置組合，包括在producer.前綴屬性文件中的所有配置，刪除整個配置（這似乎沒有區別），將密碼設置爲不正確的值（這似乎使不區別）。我也嘗試用他們的憑證連接到不同的提供商（www.cloudkarafka.com），我也得到了相同的結果。所以它絕對看起來像一個配置問題。