Added methods needed to retain data based on a byte limitation rather than time. Limitation is only applied if the flag is set (defaults to 0). Both blocks that are older than the retention period and the blocks that make the size of the storage too large are removed.
2 new metrics for keeping track of the size of the local storage folder and the amount of times data has been deleted because the size restriction was exceeded.
Signed-off-by: Mark Knapp <mknapp@hudson-trading.com>
The WALFlushInterval is not used anywhere in the code base.
The WAL is not an interface anymore to save some lookup time so can't use NopWAL in the tests. Instead can just pass nil as the code checks for that and it is essentially a noop.
Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com>
This reports the cardinality of each label,
the total number of label pairs,
and how much series worth of time is "uncovered"
by series data. Which is basically how much churn there is.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
* refactor NewSegmentsRangeReader to take multi WAL ranges
In case of an error when checkpointing the WAL the error doesn't show
the exact WAL index that is corrupter. this is because it uses
MultiReader to read multiply WAL files.
This refactoring allows the NewSegmentsRangeReader to take more than a
single WAL range and it reads all of the ranges by iterating each one.
this changes the logs from
create checkpoint: read segments: corruption after 4841144384 bytes:...
to
create checkpoint: read segments: corruption in segment
data/wal/00017351 at 123142208: ...
Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com>
