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16 lines
674 B
Markdown
16 lines
674 B
Markdown
# kind
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Specifies the spool storage backend type. There are two possible options:
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* `"LocalDisk"` - the default. Stores data in individual files on the filesystem.
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* `"RocksDB"` - uses [RocksDB](https://rocksdb.org/) to achieve higher throughput.
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`"LocalDisk"`'s performance characteristics are strongly coupled with your
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local storage device and filesystem performance.
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`"RocksDB"` makes heavy use of memory buffers and intelligent layout of storage
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to reduce the I/O cost. To a certain degree, the buffering has similar
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characteristics to deferred spooling, but the risk of corruption is attenuated
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because RocksDB uses a write-ahead-log and a background sync thread.
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