qian0817

Hi @jenoudet, Can you provide details on why the add quorum request needs to be deleted.

@jiacheliu3 @dbw9580 @HelloHorizon @LuQQiu Can anyone take a look?

> Also can you do a rebase since it has been a while since you put up the PR. Thanks! I don't see any conflicts with the master branch, and...

> > > Also can you do a rebase since it has been a while since you put up the PR. Thanks! > > > > > > I don't...

It looks like this PR has some duplication with the #15949 and #15956，Can you take a look and give some advice?

Is there design doc for this feature, for some of the implemented code I don't understand why.

Impala Provide the ability to cache the file handle, instead of closing it immediately after opening and finishing reading. it will use the `unbuffer` method to release the file handle...

I search FileContext keyword under the spark, presto, and impala repositories and find spark will use filecontext. https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/CheckpointFileManager.scala#L308-L312 presto and impala will not use.

I think it's the same problem as #14626. But do you have any possible ideas to solve this problem? @adol001