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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
https://github.com/ppwwyyxx/wechat-dump for example. They aren't designed specifically for the xlog files but I am confident they can be adapted. If you want to DM I'm happy to help.
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