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55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
// Package tuning contains tuning options.
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package tuning
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import (
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"time"
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"github.com/neilotoole/sq/libsq/core/options"
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)
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var OptMaxRetryInterval = options.NewDuration(
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"retry.max-interval",
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nil,
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time.Second*3,
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"Max interval between retries",
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`The maximum interval to wait between retries. If an operation is
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retryable (for example, if the DB has too many clients), repeated retry
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operations back off, typically using a Fibonacci backoff.`,
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options.TagSource,
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)
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var OptErrgroupLimit = options.NewInt(
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"tuning.errgroup-limit",
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nil,
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16,
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"Max goroutines in any one errgroup",
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`Controls the maximum number of goroutines that can be spawned by an errgroup.
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Note that this is the limit for any one errgroup, but not a ceiling on the total
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number of goroutines spawned, as some errgroups may themselves start an
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errgroup.
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This knob is primarily for internal use. Ultimately it should go away in favor
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of dynamic errgroup limit setting based on availability of additional DB conns,
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etc.`,
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options.TagTuning,
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)
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var OptRecBufSize = options.NewInt(
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"tuning.record-buffer",
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nil,
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1024,
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"Size of record buffer",
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`Controls the size of the channel for buffering records.`,
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options.TagTuning,
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)
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var OptFlushThreshold = options.NewInt(
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"tuning.flush-threshold",
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nil,
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1000,
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"Output writer buffer flush threshold in bytes",
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`Size in bytes after which output writers should flush any internal buffer.
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Generally, it is not necessary to fiddle this knob.`,
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options.TagTuning,
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)
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