为毛PGSQL每天晚上12点15准时卡死啊。。。也不是完全死。就是卡得要命.和死也没啥区别
停止服务后怎么都启动不了
重启服务器也一样。，过个个把两个小时。，乱点乱点就又正常了.
这可能是啥原因啊。
以前有台服务器也是这情况，用了半月就开始这样。以为是服务器问题
换了服务器后，现在正常用了半月又这样了
看别人说要手动清理配合自动清理，昨天特地手动清理了下。还是这样
服务器正常重启3-5分钟。出这问题后就得20分钟以上。（12点15前重启都是3-5分钟）
12号
13号
今天白天重装的PGSQL先备份了数据 然后再还原。数据库小了10G，12点15后没有问题
日志正好出现了点东东。大神帮分析下
2019-12-13 00:15:07 HKT LOG: checkpoints are occurring too frequently (7 seconds apart)
2019-12-13 00:15:07 HKT HINT: Consider increasing the configuration parameter "checkpoint_segments".
2019-12-13 00:15:18 HKT LOG: checkpoints are occurring too frequently (11 seconds apart)
2019-12-13 00:15:18 HKT HINT: Consider increasing the configuration parameter "checkpoint_segments".
2019-12-13 00:15:34 HKT LOG: checkpoints are occurring too frequently (16 seconds apart)
2019-12-13 00:15:34 HKT HINT: Consider increasing the configuration parameter "checkpoint_segments".
2019-12-13 00:15:40 HKT LOG: checkpoints are occurring too frequently (6 seconds apart)
2019-12-13 00:15:40 HKT HINT: Consider increasing the configuration parameter "checkpoint_segments".
2019-12-13 00:16:06 HKT LOG: checkpoints are occurring too frequently (26 seconds apart)
2019-12-13 00:16:06 HKT HINT: Consider increasing the configuration parameter "checkpoint_segments".
