directv app server error

Environment: mysql+java+hibernateProblem Description: after starting the transaction, the Java code First makes a query, then inserts, and then it reports: ERROR jdbcexceptionreporter:78-could not retrieve transation read-only status s Erver Problem Solving process: View MySQL's things isolation levelSHOW VARIABLES like '%iso% ';Results returned: repeatable-readChange this to: read-committed: SET GLOBAL tx_isolation= ' read-committed '; (Remember Jav

This problem has been killing me for hours, and I don't know what I changed when I last configured Tomcat or when I configured idea, resulting in a HelloWorld Web project not starting, always error unable to ping server at localhost : 1099, check the next network solution, found that whether to change the Catlina.bat file or modify the Setenv file, can not solve my problem. Google the problem, found a solut

;default,default,default,default,default ,default,default,default,default, default,default,default,default,default,default,default, default,default,default,default,default,default, DEFAULT,DEFAULT,DEFAULT,DEFAULT, Default,default,default,default) asawhereconvert (Datetime,[BeginTime] ) Betweendateadd (ss,-5, @min_start_time) anddateadd (ss,5, @max_start_time) and[transaction name]= ' Dropobj ' andexists (select1fromfn_dump_dblog ( null,null,n ' DISK ',1, @backupfile, default,default,default,defa