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[#428] engine: Add low_mem config parameter

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Concurrent initialization in case of the metabase resync leads to
high memory consumption and potential OOM.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
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Dmitrii Stepanov 2023-06-22 10:46:56 +03:00 • committed by Evgenii Stratonikov
parent 71a63b8e9c
commit cac4ed93d6
7 changed files with 44 additions and 10 deletions
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docs/storage-node-configuration.md
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@ -167,6 +167,7 @@ Local storage engine configuration.
|----------------------------|-----------------------------------|---------------|------------------------------------------------------------------------------------------------------------------|
| `shard_pool_size` | `int` | `20` | Pool size for shard workers. Limits the amount of concurrent `PUT` operations on each shard. |
| `shard_ro_error_threshold` | `int` | `0` | Maximum amount of storage errors to encounter before shard automatically moves to `Degraded` or `ReadOnly` mode. |
| `low_mem` | `bool` | `false` | Reduce memory consumption by reducing performance. |
| `shard` | [Shard config](#shard-subsection) | | Configuration for separate shards. |
## `shard` subsection