TSI did not check that the max select series limit during planning
the same way that inmem did. This means that the limit could be
set but the planning of a high cardinality query would still OOM
the server. This fixes that limit as well as makes the query interruptible
during planning.
There was a race on the WaitGroup where we could end up calling Add
while another goroutine was still waiting. The functions were confusing
so they have been simplified a bit since the compactions goroutines
have been reworked a lot already.
The releng scripts' tarballs had paths like `./usr/bin/influx` whereas
the build.py output had `./influxdb-1.3.5-1/usr/bin/influx`. Now the
releng scripts match the build.py output.
This adds a new flag -exact that will return exact counts instead of
estimates. The default is to return estimates since exact counting
on a problem shard could consume a lot of memory.
The scheduling logic ended up favoring more backlogged shards
too much and would starved active, less backed up shards. This
occurred because the scheduling kicks in once a second. When it
runs, it schedules as many compactions as it can. A backed up shard
would end up having more compactions to run during the loop an would
generally get to schedule them more frequently.
This now allows each shard to try and schedule one compaction at a time
which provides a more balanced approach. At some point, we'll probably
want to more directly balanc the each shards backlog vs letting it happen
somewhat randomly.
This allows the query:
SELECT mean(value) FROM cpu GROUP BY time(1d)
To function in some way that makes sense. The upper limit is implicitly
the `now()` starting time and the lower limit will be whichever interval
the lowest point falls into.
When no lower bound is specified and `max-select-buckets` is specified,
the query will only consider points that would satisfy
`max-select-buckets`. So if you have one point written in 1970, have
another point within the last minute, and then do the above query with
`max-select-buckets` being equal to 10, the older point from 1970 will
not be considered.
Ben Johnson
Jason Wilder
Jason Wilder
Mark Rushakoff
Mark Rushakoff
lrita
Stuart Carnie
Jonathan A. Sternberg
Byungjin Park