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ASF GitHub Bot commented on FLINK-9407: --------------------------------------- Github user hequn8128 commented on the issue: https://github.com/apache/flink/pull/6075 Hi @zhangminglei , The main reason to implement the `CheckpointedFuntion ` is you have kept a buffer in you Writer class. The buffer is a memory buffer which will suffer data loss during job failover. > Support orc rolling sink writer > ------------------------------- > > Key: FLINK-9407 > URL: https://issues.apache.org/jira/browse/FLINK-9407 > Project: Flink > Issue Type: New Feature > Components: filesystem-connector > Reporter: zhangminglei > Assignee: zhangminglei > Priority: Major > Labels: patch-available, pull-request-available > > Currently, we only support {{StringWriter}}, {{SequenceFileWriter}} and > {{AvroKeyValueSinkWriter}}. I would suggest add an orc writer for rolling > sink. -- This message was sent by Atlassian JIRA (v7.6.3#76005)