Redis查看服务信息命令info的参数解释。
127.0.0.1:6379> info
Server 服务器参数
redis_version:3.2.11 # redis版本
redis_git_sha1:00000000 # Git SHA1
redis_git_dirty:0 # Git dirty flag
redis_build_id:20886e8636ba9141 # redis build id (这里三个不用理会,估计也就是git相关的校验和构建)
re
使用Jedis来调用redis时,获取连接出现如下:
Caused by: Java.util.NoSuchElementException: Could not create a validated object, cause: ValidateObject failed
at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1233)
at Redis.clients.util.Pool.getResource(Pool.
错误:Host is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'
原因:
同一个ip在短时间内产生太多(超过mysql数据库max_connection_errors的最大值)中断的数据库连接而导致的阻塞;
解决方法:
1、提高允许的max_connection_errors数量(治标不治本):
① 进入Mysql数据库查看max_connection_errors: show variable