问题一：Flink报错Has not enough ip address: abnormal event detected from kubernetes
Flink报错Has not enough ip address: abnormal event detected from kubernetes
参考答案：
虚拟机没有可用IP，控制台虚拟交换机中可用新建可用IP，详情点此查看。
关于本问题的更多回答可点击进行查看：
https://developer.aliyun.com/ask/476355?spm=a2c6h.13066369.question.18.6f064d5c0iPFHH
问题二：Flink报错k8s LeaderElection renew loop gets interrupted java.lang.InterruptedException: sleep interrupted
Flink报错k8s LeaderElection renew loop gets interrupted java.lang.InterruptedException: sleep interrupted
参考答案：
只要有“sleep interrupted”的这个leader错误就不是问题，它是个单独的线程，给jm进程发停止信号的时候，线程没有处理就会报interrupted的错误。 这种都出现在作业停止的时候，可以忽略的。作业finished所以shutdown。
关于本问题的更多回答可点击进行查看：
https://developer.aliyun.com/ask/476345?spm=a2c6h.13066369.question.17.6f064d5cLx0Klp
问题三：Flink报错org.apache.flink.streaming.connectors.kafka.FlinkKafkaException: Too many ongoing snapshots. Increase kafka producers pool size or decrease number of concurrent checkpoints
Flink报错org.apache.flink.streaming.connectors.kafka.FlinkKafkaException: Too many ongoing snapshots. Increase kafka producers pool size or decrease number of concurrent checkpoints
参考答案：
【报错原因】
checkpoint超时时长设置太短，失败了几次就会报错。
【解决方案】
建议用户调大checkpoint的超时时长，超时时长参数，execution.checkpointing.timeout。
关于本问题的更多回答可点击进行查看：
https://developer.aliyun.com/ask/476372?spm=a2c6h.13066369.question.20.6f064d5crlD8l8
问题四：Flink报错：Incompatible types for sink column 'xxx' at position x.
Flink报错：Incompatible types for sink column 'xxx' at position x.
参考答案：
【报错详情】
org.apache.flink.table.api.ValidationException: SQL validation failed. Column types of query result and sink for 'vvp.default.xxx' do not match. Cause: Incompatible types for sink column 'xxx' at position x. Query schema: [xxx: xxx, xxx: xxx] Sink schema: [xxx: xxx, xxx: xxx] at org.apache.flink.table.sqlserver.utils.FormatValidatorExceptionUtils.newValidationException(FormatValidatorExceptionUtils.java:41)
【报错原因】
DML select 的表字段类型 与 DDL 建表语句定义的字段类型不匹配。
【解决方案】
位置在x位置存在字段类型不匹配，请检查DML select 的表字段类型与DDL建表语句定义的字段类型，顺序及类型均需保持一致。
关于本问题的更多回答可点击进行查看：
https://developer.aliyun.com/ask/476363?spm=a2c6h.13066369.question.21.6f064d5cKBVRb5
问题五：实时计算Flink报错The difference between the request time and the current time is too large
实时计算Flink报错The difference between the request time and the current time is too large
参考答案：
可参考QA：报错：The difference between the request time and the current time is too large
关于本问题的更多回答可点击进行查看：
https://developer.aliyun.com/ask/475556?spm=a2c6h.13066369.question.22.6f064d5coD1GxM
