Java demo一直报org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 30000 ms. about aliware-kafka-demos HOT 2 OPEN

我也一直在报这个错误

from aliware-kafka-demos.

日志内容为：
[2018-06-26 20:50:17,098] INFO ProducerConfig values:
metric.reporters = []
metadata.max.age.ms = 300000
reconnect.backoff.ms = 50
sasl.kerberos.ticket.renew.window.factor = 0.8
bootstrap.servers = [kafka-cn-internet.aliyun.com:8080]
ssl.keystore.type = JKS
sasl.mechanism = ONS
max.block.ms = 3000
interceptor.classes = null
ssl.truststore.password = [hidden]
client.id =
ssl.endpoint.identification.algorithm = null
request.timeout.ms = 30000
acks = 1
receive.buffer.bytes = 32768
ssl.truststore.type = JKS
retries = 0
ssl.truststore.location = E:\config\kafka.client.truststore.jks
ssl.keystore.password = null
send.buffer.bytes = 131072
compression.type = none
metadata.fetch.timeout.ms = 60000
retry.backoff.ms = 100
sasl.kerberos.kinit.cmd = /usr/bin/kinit
buffer.memory = 33554432
timeout.ms = 30000
key.serializer = class org.apache.kafka.common.serialization.StringSerializer
sasl.kerberos.service.name = null
sasl.kerberos.ticket.renew.jitter = 0.05
ssl.trustmanager.algorithm = PKIX
block.on.buffer.full = false
ssl.key.password = null
sasl.kerberos.min.time.before.relogin = 60000
connections.max.idle.ms = 540000
max.in.flight.requests.per.connection = 5
metrics.num.samples = 2
ssl.protocol = TLS
ssl.provider = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
batch.size = 16384
ssl.keystore.location = null
ssl.cipher.suites = null
security.protocol = SASL_SSL
max.request.size = 1048576
value.serializer = class org.apache.kafka.common.serialization.StringSerializer
ssl.keymanager.algorithm = SunX509
metrics.sample.window.ms = 30000
partitioner.class = class org.apache.kafka.clients.producer.internals.DefaultPartitioner
linger.ms = 0
(org.apache.kafka.clients.producer.ProducerConfig)
[2018-06-26 20:50:17,688] INFO Successfully logged in. (org.apache.kafka.common.security.authenticator.AbstractLogin)
[2018-06-26 20:50:18,645] INFO ProducerConfig values:
metric.reporters = []
metadata.max.age.ms = 300000
reconnect.backoff.ms = 50
sasl.kerberos.ticket.renew.window.factor = 0.8
bootstrap.servers = [kafka-cn-internet.aliyun.com:8080]
ssl.keystore.type = JKS
sasl.mechanism = ONS
max.block.ms = 3000
interceptor.classes = null
ssl.truststore.password = [hidden]
client.id = producer-1
ssl.endpoint.identification.algorithm = null
request.timeout.ms = 30000
acks = 1
receive.buffer.bytes = 32768
ssl.truststore.type = JKS
retries = 0
ssl.truststore.location = E:\config\kafka.client.truststore.jks
ssl.keystore.password = null
send.buffer.bytes = 131072
compression.type = none
metadata.fetch.timeout.ms = 60000
retry.backoff.ms = 100
sasl.kerberos.kinit.cmd = /usr/bin/kinit
buffer.memory = 33554432
timeout.ms = 30000
key.serializer = class org.apache.kafka.common.serialization.StringSerializer
sasl.kerberos.service.name = null
sasl.kerberos.ticket.renew.jitter = 0.05
ssl.trustmanager.algorithm = PKIX
block.on.buffer.full = false
ssl.key.password = null
sasl.kerberos.min.time.before.relogin = 60000
connections.max.idle.ms = 540000
max.in.flight.requests.per.connection = 5
metrics.num.samples = 2
ssl.protocol = TLS
ssl.provider = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
batch.size = 16384
ssl.keystore.location = null
ssl.cipher.suites = null
security.protocol = SASL_SSL
max.request.size = 1048576
value.serializer = class org.apache.kafka.common.serialization.StringSerializer
ssl.keymanager.algorithm = SunX509
metrics.sample.window.ms = 30000
partitioner.class = class org.apache.kafka.clients.producer.internals.DefaultPartitioner
linger.ms = 0
(org.apache.kafka.clients.producer.ProducerConfig)
[2018-06-26 20:50:18,648] INFO Kafka version : 0.10.0.0 (org.apache.kafka.common.utils.AppInfoParser)
[2018-06-26 20:50:18,648] INFO Kafka commitId : b8642491e78c5a13 (org.apache.kafka.common.utils.AppInfoParser)
error occurred
java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 3000 ms.
at org.apache.kafka.clients.producer.KafkaProducer$FutureFailure.(KafkaProducer.java:730)
at org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:483)
at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:430)
at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:353)
at kafka.KafkaProducerDemo.main(KafkaProducerDemo.java:57)
Caused by: org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 3000 ms.

from aliware-kafka-demos.