Aliaksandr Valialkin
cc2647d212
lib/encoding: optimize UnmarshalVarUint64, UnmarshalVarInt64 and UnmarshalBytes a bit
...
Change the return values for these functions - now they return the unmarshaled result plus
the size of the unmarshaled result in bytes, so the caller could re-slice the src for further unmarshaling.
This improves performance of these functions in hot loops of VictoriaLogs a bit.
2024-05-14 01:23:54 +02:00
Aliaksandr Valialkin
99d67ac8ad
lib/storage: validate timestamps in the block only if they use encoding, which needs validation
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This reduces CPU usage when there is no sense in validating timestamps.
This is a follow-up for 5fa9525498https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2998
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3011
2022-10-21 00:52:32 +03:00
Aliaksandr Valialkin
5fa9525498
lib/storage: verify that timestamps in block are in the range specified by blockHeader.{Min,Max}Timestamp when upacking the block
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This should reduce chances of unnoticed on-disk data corruption.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2998
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3011
This change modifies the format for data exported via /api/v1/export/native -
now this data contains MaxTimestamp and PrecisionBits fields from blockHeader.
This is OK, since the native export format is undocumented.
2022-09-06 13:08:09 +03:00
Aliaksandr Valialkin
00b1659dde
lib: dump compressed block contents on error during decompression
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This should improve detecting root cause for https://github.com/facebook/zstd/issues/2222
2020-08-15 14:44:33 +03:00
Aliaksandr Valialkin
d5dddb0953
all: use %w instead of %s for wrapping errors in fmt.Errorf
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This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin
4ba4abe666
lib/encoding: log the compressed block contents if it cannot be decompressed or unmarshaled
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This should help detecting the root cause of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/281
2019-12-24 20:48:31 +02:00
Aliaksandr Valialkin
55d728c849
lib/{decimal,encoding}: optimize float64<->decimal conversion for arrays with zeros or ones
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Time series with only zeros or ones frequently occur in monitoring, so it is worth optimizing their handling.
2019-11-01 16:48:12 +02:00
Aliaksandr Valialkin
0f2ecde0e6
lib/encoding: improve gauge series detection
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- Series with negative values are always gauges
- Counters may only have increasing values with possible counter resets
This should improve compression ratio for gauge series which
were previously mistakenly detected as counters.
2019-07-20 14:05:09 +03:00
Aliaksandr Valialkin
54fb8b21f9
all: fix misspellings
2019-05-25 21:51:11 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00
