solr data rolls on Jan 1 every year?

[Joshua Kim]

Hello,

I have a similar question to my recent posting. I found one interesting thing. After moving solr default directory from /opt to /home/solr/data because of space issues, it looks like on Jan 1 every year, the statistics roll as below.

0 drwxr-xr-x 6 solr solr   66 Nov  7  2022 configsets
0 drwxr-xr-x 2 solr solr    6 Oct 25  2022 filestore
4 -rw-r----- 1 solr solr 2427 Oct 25  2022 solr.xml

0 drwxr-xr-x 3 solr solr   41 Jan  1 2024 statistics-2023
0 drwxr-xr-x 3 solr solr   41 Jan  1 02:00 statistics-2024
0 drwxr-xr-x 2 solr solr    6 Oct 25  2022 userfiles
4 -rw-r----- 1 solr solr 1048 Oct 25  2022 zoo.cfg

Is this the way how solr stores the previous year's data? Or Is there misconfiguration as we moved to another directory (instead of using the default directory)? How can I let solr know there is the statistics-2024 data? Or how can I combine the data of statistics-2024 into the current solr data under configsets/data/index folder? Statistics is supposed to display the number of hits from last August to this month.