Re: Some doubts related to Rocksdb state backed and checkpointing!

2018-06-24 Thread sihua zhou
Hi Ashwin, I think the questions here might be a bit general and that could make it a bit hard to offer the answer meet your expected exactly, could you please somehow bref outlined your user case here to accossiated with questions, that would definitely make it easier to offer a better help

Re: Some doubts related to Rocksdb state backed and checkpointing!

2018-06-24 Thread zhangminglei
Hi,Ashwin > What is the exact difference between checkpoint and state backend? Ans: I can answer the first question you asked. Checkpoint is a mechanism that can make your program fault tolerant. Flink uses distributed snapshots implements checkpoint. But here is the question, where do I to s

Some doubts related to Rocksdb state backed and checkpointing!

2018-06-24 Thread Ashwin Sinha
Hi, We are using flink1.3.2 and trying to explore rocksdb state backend and checkpointing. Data source is Kafka and checkpointing enabled in Flink. We have few doubts regarding the same: - What is the exact difference between checkpoint and state backend? - Is the data stored in rocksdb che