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[EP-tech] IRStats2 issue: process_stats processes raw logs (2021–2026) but irstats2_cache_downloads stops at April 2026

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Hi EPrints Community,

I am running into an issue with IRStats2 on an EPrints 3.4 server hosting multiple repository archives on a single instance (target Archive ID: purejguopjindal).

However, when running incremental stats processing:
/opt/eprints3/archives/purejguopjindal/bin/stats/process_stats purejguopjindal --verbose

The process completes without throwing fatal errors, but the aggregated cache table irstats2_cache_downloads (and public abstract pages) only populates statistical data up to April 2026. Statistics from May 2026 through August 2026 are not aggregating into the cache.

System Details & Environment:

  • EPrints Version: 3.4.x (Multi-archive installation on a single server)

  • Plugin: IRStats2

  • OS: Ubuntu 24.04 LTS

  • Database: MySQL 8.

Despite this, the monthly cache aggregation halts at April 2026.

Has anyone encountered an issue in multi-archive setups where process_stats skips aggregating raw logs past a certain date boundary into irstats2_cache_* tables? Could this be related to a specific date formatting/timestamp threshold in the IRStats2 Perl code or MySQL 8 date handling?


Thanks and Best Regards,
Abid Fakhre Alam