* lib/storage/partition: add check to ensure parts exist on disk
If part exists in parts.json but is missing on disk there will be a misleading error similar to "unexpected number of substrings in the part name".
This change forces verification of part existence and throws a correct error in case it is missing on disk.
Such issue can be result of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5005 or disk corruption.
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
* lib/storage/partition: use filepath.Join instead of string concatenation
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
* lib/storage/partition: add action points for error message
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
* all: add a check for missing part in lib/mergeset and lib/logstorage
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Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
