forked from TrueCloudLab/frostfs-node
67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
package engineconfig
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import (
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"strconv"
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"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
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shardconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard"
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)
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const (
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subsection = "storage"
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// ShardPoolSizeDefault is a default value of routine pool size per-shard to
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// process object PUT operations in storage engine.
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ShardPoolSizeDefault = 20
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)
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// IterateShards iterates over subsections ["0":"N") (N - "shard_num" value)
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// of "shard" subsection of "storage" section of c, wrap them into
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// shardconfig.Config and passes to f.
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//
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// Panics if N is not a positive number while shards are required.
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func IterateShards(c *config.Config, required bool, f func(*shardconfig.Config)) {
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c = c.Sub(subsection)
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num := config.Uint(c, "shard_num")
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if num == 0 {
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if required {
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panic("no shard configured")
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}
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return
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}
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def := c.Sub("default")
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c = c.Sub("shard")
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for i := uint64(0); i < num; i++ {
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si := strconv.FormatUint(i, 10)
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sc := shardconfig.From(
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c.Sub(si),
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)
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(*config.Config)(sc).SetDefault(def)
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f(sc)
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}
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}
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// ShardPoolSize returns value of "shard_pool_size" config parameter from "storage" section.
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//
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// Returns ShardPoolSizeDefault if value is not a positive number.
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func ShardPoolSize(c *config.Config) uint32 {
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v := config.Uint32Safe(c.Sub(subsection), "shard_pool_size")
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if v > 0 {
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return v
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}
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return ShardPoolSizeDefault
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}
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// ShardErrorThreshold returns value of "shard_ro_error_threshold" config parameter from "storage" section.
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//
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// Returns 0 if the value is missing.
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func ShardErrorThreshold(c *config.Config) uint32 {
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return config.Uint32Safe(c.Sub(subsection), "shard_ro_error_threshold")
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}
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