Re: checkpoint interval and hdfs file capacity

2020-11-11 Thread Congxian Qiu
Hi Currently, checkpoint discard logic was executed in Executor[1], maybe it will not be deleted so quickly [1] https://github.com/apache/flink/blob/91404f435f20c5cd6714ee18bf4ccf95c81fb73e/flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CheckpointsCleaner.java#L45 Best, Congx

Re: checkpoint interval and hdfs file capacity

2020-11-09 Thread lec ssmi
Thanks. I have some jobs with the checkpoint interval 1000ms. And the HDFS files grow too large to work normally . What I am curious about is, are writing and deleting performed synchronously? Is it possible to add too fast to delete old files? Congxian Qiu 于2020年11月10日周二 下午2:16写道: > Hi >

Re: checkpoint interval and hdfs file capacity

2020-11-09 Thread Congxian Qiu
Hi No matter what interval you set, Flink will take care of the checkpoints(remove the useless checkpoint when it can), but when you set a very small checkpoint interval, there may be much high pressure for the storage system(here is RPC pressure of HDFS NN). Best, Congxian lec ssmi 于2020年1