c74c5c9289
This creates 2 distinct formats available when serializing AggregatedTimeSerie: once is "padded" so it can be written based on offset (Ceph) and the other one is "compressed" so it can be written to object stores (Swift, file). This compressed format is also used to store timeseries splits that are out of reach of the back window. Change-Id: I6f5431945ad9873d280eeb0f6b4907ade493406b
14 lines
693 B
YAML
14 lines
693 B
YAML
---
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features:
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- The Carbonara based storage engine has been updated and greatly improved.
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It now features fast write for Ceph (no change for file and Swift based
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drivers) by using an append method.
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It also features on the fly data compression (using LZ4) of the aggregated
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time serie, reducing the data space usage by at least 50 %.
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upgrade:
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- gnocchi-upgrade must be run before running the new version of
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gnocchi-metric and the HTTP REST API in order to upgrade from version 2 of
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the Carbonara storage engine to version 3. It will read all metrics and
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convert them to new version 3 serialization format (compressing the data),
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which might take some time.
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