报错信息：No provider for SASL mechanism GSSAPI: recompile librdkafka with libsasl2 or openssl support. Current build options: PLAIN SASL_SCRAM OAUTHBEARER
解决方案：需要配置编译选项：
Debian/Ubuntu:
sudo apt-get install libsasl2-modules-gssapi-mit libsasl2-dev
CentOS/Redhat:
sudo yum install cyrus-sasl-gssapi cyrus-sasl-devel
参考链接：https://github.com/edenhill/librdkafka/wiki/Using-SASL-with-librdkafkahttps://github.com/edenhill/librdkafka/wiki/Using-SASL-with-librdkafka kerberos:
server端配置Kerberos之后，rdkafka作为producer需要配置bootstrap.servers，例:rd_kafka_conf_set(conf, "bootstrap.servers", "localhost", NULL, 0);否则会报错：No `bootstrap.servers` configured: client will not be able to connect to Kafka cluster；
另外bootstrap.servers的配置为hostname或者127.0.0.1，但是server.name/hostname必须能在Kerberos数据库存在，否则会报错：Server kafka/127.0.0.1@TEST.COM not found in Kerberos database.
其他配置：
sasl.kerberos.service.name:kafka
sasl.kerberos.keytab:/root/kafka/kafka.keytab
security.protocol:sasl_plaintext
sasl.mechanisms:GSSAPI
sasl.kerberos.principal:kafka/crop001.bonc.com@BONC.COM
sasl.kerberos.min.time.before.relogin:6000
sasl.kerberos.kinit.cmd:kinit -kt /root/kafka/kafka.keytab hadoop/crop001.bonc.com@BONC.COM
注释：service.name和server端保持一致，且和Kerberos主名称保持一致，模板中为kafka
