<http://apache-flink.147419.n8.nabble.com/file/t538/QQ%E6%88%AA%E5%9B%BE20201105165123.jpg>
<http://apache-flink.147419.n8.nabble.com/file/t538/QQ%E6%88%AA%E5%9B%BE20201105165200.jpg>
chk history如图，以下是TM中找到的INFO信息：
2020-11-05 13:13:38,101 INFO
org.apache.flink.streaming.api.functions.sink.filesystem.Buckets [] -
Subtask 2 checkpointing for checkpoint with id=16 (max part counter=6).
2020-11-05 13:13:38,143 INFO
org.apache.flink.streaming.api.functions.sink.filesystem.Buckets [] -
Subtask 1 checkpointing for checkpoint with id=16 (max part counter=0).
2020-11-05 13:14:37,779 WARN org.apache.kafka.clients.NetworkClient
[] - Connection to node -3 could not be established. Broker may not be
available.
2020-11-05 13:14:37,786 WARN org.apache.kafka.clients.NetworkClient
[] - Connection to node -2 could not be established. Broker may not be
available.
2020-11-05 13:33:38,115 INFO org.apache.flink.runtime.taskmanager.Task
[] - Attempting to cancel task Source: Custom Source -> Process -> (Sink:
Hdfs sink, Sink: HistoryTopic hbase sink, Sink: HistoryTopicCopy hbase sink)
(3/3) (68bfa6305a9aa5a7381b9ca4a8fef2fa).
请路过的大佬们指点下chk超时怎么定位问题，多谢（目前日志级别切换不成debug）
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