Oracle 11g later new features make the default conditions in the allocation of table space when the empty table is ignored to reduce the table space resource consumption, so that the use of Oracle’s exp export user data will be ignored when the empty table, it will cause data Not complete, of course, in the […]
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YUM deployment of high-level LNMP environment
Status: yum epel comes with a low version of php mysql nginx can not meet the test and production environment in the program performance and security requirements LNMP -> Web environment for rapid deployment Demand: yum source version of the php is 5.4, when we need to use […] First, the problem found Just on the line of the project, the front end of the use of LVS + Haproxy do load balancing, support for high concurrent traffic, but after a period of time is always a problem, view the log, found the following Too many open files problem. May 12, 2017 12:49:20 AM […] OpenLDAP dual main structures LDAP as a more critical service, a single point is certainly a problem, in addition to the general master and slave, the better choice is the double main, that is, there are two ldap server, and real-time synchronization, and then in front of the load balancing call. One of which hung […] |
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