Introduce datastore v2 #64
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protojson is not available after using gogoprotobuf
DataStore v2 is a simple storage engine for our monitor. Data file layout: ``` ver,len,buf,ver,len,buf,... ``` Keep writing until the maximum number of entries is reached. Then sealed the data file and compressed. Every time a certain amount of files are sealed, performs space reclaiming. Move the previous datastore modules as v2 by the way.
1023280072
approved these changes
Sep 13, 2023
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Motivation
Our current usage of BadgerDB has proven to be too resource-intensive, consuming unacceptable amounts of memory and CPU in our specific use case (>10GiB in common).
Design
To mitigate this, we have refactored our datastore to directly write records into files. After reaching a certain limit of records, we switch to a new file for continued writing. Additionally, we now compress previous data files to reduce spaces.