stack updated HBASE-11208:
    Priority: Blocker  (was: Major)

> Remove the hbase.hstore.blockingStoreFiles setting
> --------------------------------------------------
>                 Key: HBASE-11208
>                 URL: https://issues.apache.org/jira/browse/HBASE-11208
>             Project: HBase
>          Issue Type: Brainstorming
>          Components: Compaction, regionserver
>    Affects Versions: 0.99.0
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>            Priority: Blocker
>             Fix For: 2.0.0
> It's a little bit of a provocation, but the rational is:
>  - there are some bugs around the delayed flush. For example, if the periodic 
> scheduler has asked for a delayed flush, and that we need to flush, we will 
> have to wait
>  - if the number of WAL files increases, we won't flush immediately if the 
> blockingFile number has been reached. This impacts the MTTR.
>  - We don't write to limit the compaction impact, but they are many cases 
> where we would want to flush anyway, as the writes cannot wait.
>  - this obviously leads to huge write latency peaks.
> So I'm questioning this setting, it leads to multiple intricate cases, 
> unpredictable write latency, and looks like a workaround for compaction 
> performances. With all the work done on compaction, I think we can get rid of 
> it.  A solution in the middle would be to deprecate it and to set it to a 
> large value...
> Any opinion before I shoot :-) ? 

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