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update README

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Adds note about 3k IOPs requirement with badger markset, updates the memory requirement for
map to 48G based on observed behaviour of test nodes.
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vyzo 2022-02-08 10:10:51 +02:00
parent 966071d437
commit 8ddf4766ea
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blockstore/splitstore/README.md
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@ -50,8 +50,10 @@ These are options in the `[Chainstore.Splitstore]` section of the configuration:
- `MarkSetType` -- specifies the type of markset to use during compaction. - `MarkSetType` -- specifies the type of markset to use during compaction.
The markset is the data structure used by compaction/gc to track live objects. The markset is the data structure used by compaction/gc to track live objects.
The default value is "badger", which will use a disk backed markset using badger. The default value is "badger", which will use a disk backed markset using badger.
If you have a lot of memory (40G or more) you can also use "map", which will use If you have a lot of memory (48G or more) you can also use "map", which will use
an in memory markset, speeding up compaction at the cost of higher memory usage. an in memory markset, speeding up compaction at the cost of higher memory usage.
Note: If you are using a VPS with a network volume, you need to provision at least
3000 IOPs with the badger markset.
- `HotStoreMessageRetention` -- specifies how many finalities, beyond the 4 - `HotStoreMessageRetention` -- specifies how many finalities, beyond the 4
finalities maintained by default, to maintain messages and message receipts in the finalities maintained by default, to maintain messages and message receipts in the
hotstore. This is useful for assistive nodes that want to support syncing for other hotstore. This is useful for assistive nodes that want to support syncing for other