补充下上个问题中图片的文字版：
图一：
if (count > 300) {
mutator.flush()
count = 0
}
count = count + 1
图二：
Caused by:
org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException: Failed
101 actions: Operation Timeout: 101 times, servers with issues:
172.xx.x.x,16020,1601173606933
at
org.apache.hadoop.hbase.client.AsyncProcess$BatchErrors.makeException(AsyncProcess.java:297)
at
org.apache.hadoop.hbase.client.AsyncProcess$BatchErrors.access$2300(AsyncProcess.java:273)
at
org.apache.hadoop.hbase.client.AsyncProcess.waitForAllPreviousOpsAndReset(AsyncProcess.java:1906)
at
org.apache.hadoop.hbase.client.BufferedMutatorImpl.backgroundFlushCommits(BufferedMutatorImpl.java:250)
at
org.apache.hadoop.hbase.client.BufferedMutatorImpl.flush(BufferedMutatorImpl.java:213)
at
org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:56)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:637)
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