1.????????????????????FlinkAPI??window????env.setStateBackend(new 
RocksDBStateBackend("hdfs://host51:9000/flink/checkpoints",true))????rocksDB????checkpoint??????????????????????Completed
 checkpoint 142 for job 25a50baff7d16ee22aecb7b1******** (806418 bytes in 426 
ms).
2.??????SQLwindow????????????????????rocksDB??????checkpoint????????window??checkpoint??????n/a
2019-09-03 15:17:52,142 WARN  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator     - Received late 
message for now expired checkpoint attempt 1 from 
915988718742f11135a6e96ba42c4e35 of job fd5010cbf20501339f1136600f0709c3. 
2019-09-03 15:17:52,143 WARN  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator     - Received late 
message for now expired checkpoint attempt 1 from 
191ca20964de323300551d9a144c272c of job fd5010cbf20501339f1136600f0709c3. 
2019-09-03 15:17:52,144 WARN  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator     - Received late 
message for now expired checkpoint attempt 1 from 
2a24625ac03ea6ac4b8632719768c502 of job fd5010cbf20501339f1136600f0709c3. 
2019-09-03 15:17:52,144 WARN  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator     - Received late 
message for now expired checkpoint attempt 1 from 
51b376365d044c672677c38ca1caee78 of job fd5010cbf20501339f1136600f0709c3. 
2019-09-03 15:17:52,227 WARN  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator     - Received late 
message for now expired checkpoint attempt 1 from 
9266a7307add46cb26f5a9352c82ceb0 of job fd5010cbf20501339f1136600f0709c3. 
2019-09-03 15:18:21,881 WARN  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator     - Received late 
message for now expired checkpoint attempt 4 from 
24674987621178ed1a363901acc5b128 of job fd5010cbf20501339f1136600f0709c3. 
2019-09-03 15:18:21,882 WARN  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator     - Received late 
message for now expired checkpoint attempt 3 from 
24674987621178ed1a363901acc5b128 of job fd5010cbf20501339f1136600f0709c3.
??????????????????????




------------------ ???????? ------------------
??????: "Wesley Peng"<[email protected]>;
????????: 2019??9??3??(??????) ????3:24
??????: "user-zh"<[email protected]>;

????: Re: flink????StateBackend????



Hi

on 2019/9/3 12:14, ???????? wrote:
> ??????????????????????StateBackend??????????????????env.setStateBackend(new 
> RocksDBStateBackend("hdfs://host51:9000/flink/checkpoints",true))????????????????????SQLwindow????????checkpoint??????????????????n/a??
> 
> ????????????????????????????????????flink-conf.xml??????????
> state.checkpoints.dir: 
> hdfs://host51:9000/flink/flink-checkpoints??????????????????
> ????SQLwindow??RocksDBStateBackend????????????????????????????????


It seems like a filesystem issue, though I have no experience on it too.

regards.

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