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prometheus/CHANGELOG.md
Krasi Georgiev 2e0571caba
remove unused WALFlushInterval option and NopWAL struct (#468) 
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>
2018-12-28 20:42:46 +03:00

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master / unreleased

  • [CHANGE] New WALSegmentSize option to override the DefaultOptions.WALSegmentSize. Added to allow using smaller wal files. For example using tmpfs on a RPI to minimise the SD card wear out from the constant WAL writes. As part of this change the DefaultOptions.WALSegmentSize constant was also exposed.
  • [CLEANUP] Options.WALFlushInterval is removed as it wasn't used anywhere.

0.3.1

  • [BUGFIX] Fixed most windows test and some actual bugs for unclosed file readers.

0.3.0

  • [CHANGE] LastCheckpoint() used to return just the segment name and now it returns the full relative path.
  • [CHANGE] NewSegmentsRangeReader() can now read over miltiple wal ranges by using the new SegmentRange{} struct.
  • [CHANGE] CorruptionErr{} now also exposes the Segment Dir which is added when displaying any errors.
  • [CHANGE] Head.Init() is changed to Head.Init(minValidTime int64)
  • [CHANGE] SymbolTable() renamed to SymbolTableSize() to make the name consistent with the Block{ symbolTableSize uint64 } field.
  • [CHANGE] wal.Reader{} now exposes Segment() for the current segment being read and Offset() for the current offset. -[FEATURE] tsdbutil analyze subcomand to find churn, high cardinality, etc.