"The maximum record for upgrading discuz is Array at 1970-1-1"

From X2 to X3, we found that the first impression of "the highest record is Array at 1970-1-1" is that the data format has changed and it must be a cache problem. The possible problem is that the cache data has not been updated and some queries have been made, mainly because 1 is to disable eaccelerator or clear the cache of eaccelerator 2 is to disable memcach

From X2 to X3, we found that the first impression of "the highest record is Array at 1970-1-1" is that the data format has changed and it must be a cache problem. The possible problem is that the cache data has not been updated and some queries have been made, mainly because 1 is to disable eaccelerator or clear the cache of eaccelerator 2 is to disable memcach

From X2 to X3, it is found that the homepage displays "the highest record is Array at 1970-1-1"
The first impression is that the data format has changed and it must be a cache problem.

The possible problem is that the cache data has not been updated and some queries have been made, mainly because
1. Disable eaccelerator or clear the cache of eaccelerator.
2. Disable memcache or restart the memcache service.

The first attempt failed.
The second one can restart the memcache service, but the backend can be cleared. Global-> Performance Optimization-> memory optimization can be cleared.

In addition, if there is no data in the latest post, it may be that the reading permission has been set for each Forum section. If there is a set reading permission, no data will be displayed, blood and tears, debugging takes a long time to discover

Original article address: Solve the Problem of upgrading discuz, "the highest record is Array at 1970-1-1". Thank you for sharing it.