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current , have some question:

1.   throw exception after flush error,  TsFileProcessor catch exception set read-only mode and thread interrupt.

2. after flush error, only  "Thread.currentThread().interrupt()",   thread continue execute, delete WAL , which lead to data lost... 

Solution:

step1:after flush error, write reset, which will truncate markedPosition data

step2: add retry mechanism， retry flush data..  default retry 3 times, interval 1s.

step3: if there is error after retry, will set onlyread mode

step4:trigger only read mode recovery,  will close all tsfile. as the same, default retry 3 times,  interval 10 min

step5: if close all tsfile success,  will set only-read to false.