0ec685b173
We plan to add support for a new Reed-Solomon scheme soon, but our
repair queue orders segments by least number of healthy pieces first.
With a second RS scheme, fewer healthy pieces will not necessarily
correlate to lower health.
This change just adds the new column in a migration. A separate change
will add the new health function.
Right now, since we only support one RS scheme, behavior will not
change. Number of healthy pieces is being inserted as "segment health"
until the new health function is merged.
Segment health is calculated with a new priority function created in
commit 3e5640359. In order to use the function, a new config value is
added, called NodeFailureRate, representing the approximate probability
of any individual node going down in the duration of one checker run.
Change-Id: I51c4202203faf52528d923befbe886dbf86d02f2
31 lines
1.1 KiB
Go
31 lines
1.1 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package queue
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import (
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"context"
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"time"
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"storj.io/storj/satellite/internalpb"
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)
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// RepairQueue implements queueing for segments that need repairing.
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// Implementation can be found at satellite/satellitedb/repairqueue.go.
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//
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// architecture: Database
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type RepairQueue interface {
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// Insert adds an injured segment.
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Insert(ctx context.Context, s *internalpb.InjuredSegment, segmentHealth float64) (alreadyInserted bool, err error)
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// Select gets an injured segment.
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Select(ctx context.Context) (*internalpb.InjuredSegment, error)
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// Delete removes an injured segment.
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Delete(ctx context.Context, s *internalpb.InjuredSegment) error
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// Clean removes all segments last updated before a certain time
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Clean(ctx context.Context, before time.Time) (deleted int64, err error)
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// SelectN lists limit amount of injured segments.
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SelectN(ctx context.Context, limit int) ([]internalpb.InjuredSegment, error)
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// Count counts the number of segments in the repair queue.
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Count(ctx context.Context) (count int, err error)
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}
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