Hi Shubham,
I've just checked the latest master branch and I can confirm it works as
you've described.
As a workaround one can read the *<some-random-uuid>* in the directory
structure and can be set with .queryName("<some-random-uuid>") before
restart.
BR,
G
On Tue, Dec 11, 2018 at 6:45 AM Shubham Chaurasia <shubh.chaura...@gmail.com>
wrote:
> Hi,
>
> I would like to confirm checkpointing behavior, I have observed following
> scenarios:
>
> *1)* When I set checkpointLocation from streaming query like:
>
> val query =
> rateDF.writeStream.format("console").outputMode("append").trigger(Trigger.ProcessingTime("1
> seconds")).*option("checkpointLocation",
> "/Users/shubham/checkpoint_from_query1")*.queryName("q2").start
>
> It generates all the metadata in */Users/shubham/checkpoint_from_query1
> *regardless
> of whether queryName is set or not.
>
> *2)* When I set it from conf like:
> *spark.conf.set("spark.sql.streaming.checkpointLocation",
> "/Users/shubham/checkpoint_from_conf")*
>
> I observed two cases here:
> *2.1)* When I set the queryName like .queryName("q2"), it generates all
> metadata under */Users/shubham/checkpoint_from_conf/q2*
>
> *2.2)* When queryName is not set, it generates all metadata under
> */Users/shubham/checkpoint_from_conf/<some-random-uuid>*
>
> I have seen query successfully recovers in scenario *1)* and *2.1) *which
> is fine.
> It does not recover from *2.2) *which is also fine as it is unable to
> somehow get the query handle.
>
> Can there be any other possibility? Would like to confirm.
>
> Thanks,
> Shubham
>
>
