最近升级了Rocky Linux 8.10版，升级后发现，在dnf安装包组、创建删除用户等，看到sss_cache缓存提示版本过旧。这可能是由于SSSD版本升级、缓存库损坏等原因导致。具体提示内容如下：
[sss_cache] [sysdb_domain_cache_connect] (0x0010): DB version too old [0.23], expected [0.24] for domain implicit_files!
Higher version of database is expected!
In order to upgrade the database, you must run SSSD.
Removing cache files in /var/lib/sss/db should fix the issue, but note that removing cache files will also remove all of your cached credentials.
Could not open available domains
[sss_cache] [sysdb_domain_cache_connect] (0x0010): DB version too old [0.23], expected [0.24] for domain implicit_files!
Higher version of database is expected!
In order to upgrade the database, you must run SSSD.
Removing cache files in /var/lib/sss/db should fix the issue, but note that removing cache files will also remove all of your cached credentials.
Could not open available domains
[sss_cache] [sysdb_domain_cache_connect] (0x0010): DB version too old [0.23], expected [0.24] for domain implicit_files!
Higher version of database is expected!
In order to upgrade the database, you must run SSSD.
Removing cache files in /var/lib/sss/db should fix the issue, but note that removing cache files will also remove all of your cached credentials.
Could not open available domains
[sss_cache] [sysdb_domain_cache_connect] (0x0010): DB version too old [0.23], expected [0.24] for domain implicit_files!
Higher version of database is expected!
In order to upgrade the database, you must run SSSD.
Removing cache files in /var/lib/sss/db should fix the issue, but note that removing cache files will also remove all of your cached credentials.
Could not open available domains
解决办法：
刷新缓存数据，假设你在LDAP服务器上更新了用户信息，但系统仍然使用旧的缓存数据。你可以运行以下命令来刷新数据，确保在适当的时间运行，避免对正在运行的系统造成影响。
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sss_cache -E |
如果本身sssd状态systemctl status sssd就是未启动的，可尝试删除缓存文件解决。注意：在执行操作前，建议备份重要数据，并确保你了解这些操作可能带来的影响和后果。
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rm -rf /var/lib/sss/db/* |
如果本身sssd状态已经启动的，可尝试停止重新启动该服务，或检查配置文件等。
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systemctl restart sssd |
原文链接：[sss_cache] DB version too old问题，转载请注明来源！
