< H2 > the cause of the problem < H2 > recently wrote a scheduled task using quartz . This scheduled task is mainly to add something like points to members, and to keep a record of points increase, which is executed at 4 o clock every morning, but s...
druid may throw SqlException when creating a connection, but cannot capture ...
druid + Mybatis + spring boot. , Sql(, 20.), . druid? . 2018-12-05T22:16:01.306+0800 [ERROR] interceptor.RuntimeExceptionInterceptor < http-nio-6016-exec-2_xxx.i.RuntimeExceptionInterceptor.handleBizExceptions (52) _ c.g.x.f.i.RuntimeExceptionIntercept...
time distribution, what kind of distribution, what do you think? ...
Project applies Druid+Sharding JDBC to split a table, product_0, product_1,product_2. but only the logical table name can be seen under Druid monitoring. Product, cannot see the actual physical table name and UNKNOWN appears under the fields item. As...
the druid configuration I know is configured on a service if mysql is installed on a machine when we connect with a connection pool according to https: blog.csdn.net w059805. the size formula of the connection pool is: number of connections = ((...
enabling affects performance, but does not enable it. If an abnormal connection occurs, it may not be reclaimed in time, causing the system thread to be occupied and then hung up. For example, https: blog.csdn.net lx34832....
the project uses SpringBoot+jdbc+mybatis+druid, to use logback for log processing. There is no problem with the whole project test, but when the war package is put into tomcat to start, it will constantly prompt the relevant information of JNDI . [DEBUG...
critical: Error listenerStart 2018-5-11 15:32:08 org.apache.catalina.core.StandardContext start critical: Context [ SCM] startup failed due to previous errors 2018-5-11 15:32:09 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc serio...
druid database connection overflows, resulting in application downtime. The database uses Ali Cloud s RDS, connection to allow 8000 connections connection pool is configured as follows : <!-- --> <bean id="dataSourceMain" cl...
A table may have multiple pieces of data, and you can show a different number of entries by selecting different data to be displayed on each page, so here s the problem: I want to position the pages absolutely. Cannot be positioned relative to the brow...
the 5 minutes set by my front desk, but the browser shows the timeout in 2 minutes, so I suspect that springboot has set the default timeout. How to modify it? I haven t found the correct available settings for Baidu for a long time. ...
my hard disk speed is as follows. How long will it take to have 10000 files in the ls directory time dd bs=64k count=4k if= dev zero of=test oflag=dsync 4096+0 4096+0 268435456(268 MB)32.583 8.2 MB real 0m32.584s user 0m0.012s sys 0m0.896...
how to get the height of the dom element and the scrolling distance. ...
in vue s mobile phone page, the input box is fixed at the bottom of the page through fixed. When the keyboard appears, it is topped by the keyboard, but if it slips down, the input box slides again. How to keep the input box motionless when sliding, and...