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Do not use write-cache as a read cache: always remove objects from the WC, not only if an object hasn't been used for some time (LRU cache is dropped). Use object size (in bytes) as a metric of used space, not an approximate (and too inaccurate) maximum stored objects number. Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
34 lines
662 B
Go
34 lines
662 B
Go
package writecache
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import (
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"context"
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"fmt"
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"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/pkg/tracing"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
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)
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// Init runs necessary services.
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func (c *Cache) Init() error {
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ctx, span := tracing.StartSpanFromContext(context.TODO(), "writecache.Init")
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defer span.End()
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c.modeMtx.Lock()
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defer c.modeMtx.Unlock()
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if c.mode.NoMetabase() {
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return nil
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}
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err := c.initCounters(ctx)
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if err != nil {
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return fmt.Errorf("initializing write-cache size: %w", err)
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}
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if c.mode == mode.ReadWrite {
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c.workersChan = make(chan struct{})
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c.runFlushLoop()
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}
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return nil
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}
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