lte failover

15.5 Remove AlwaysOn Failover clusters15.5.1 PrerequisitesTo remove an AlwaysOn failover cluster, you must use the permissions of the local administrator and the permissions for all nodes that are logged on to the failover cluster.You must run the SQL Server Setup Wizard from each node of an AlwaysOn failover cluster t

=> 180, 7 failover_delay => 5 ); 8 end; 9/ PL/SQL procedure successfully completed. SQL> select name, failover_method, failover_type, goal, clb_goal from dba_services 2 where name = 'taf '; NAME FAILOVER_METHOD FAILOVER_TYPE GOAL CLB_G ------------------------------------------------------------------------ TAF BASIC SELECT LONG SQL> ho lsnrctl status .......... Service "TAF" has 1 instance (s ). Instance "GOBO4A", status READY, has 2 handler (s) for this service... The command completed su

Today, we demonstrated the switching process between switchover and failover on the virtual machine. The customer is concerned with failover. We directly turn off the virtual storage switch to simulate array faults. Failover steps are as follows: 1. select NAME,RESETLOGS_TIME,LOG_MODE,OPEN_MODE,PROTECTION_MODE,REMOTE_ARCHIVE, DATABASE_ROLE,SWITCHOVER_STATUS,FORC

Before you create a SQL Server 2000 failover cluster, you must configure Microsoft Cluster Service (MSCS) and use the Cluster Administrator in Microsoft Windows NT4.0 or Windows 2000 to create at least one cluster disk resource. Before running SQL Server Setup, note the location of the cluster drive in the Cluster Administrator because this information is required to create a new failover cluster. Only SQL

Tags: problem eth delay NEC System Environment file RET Unable to attach load Java Oracle thin and OCI connectivity for failover of multiple databases First, Thin way This method is easy to use and is not uncommon.The URL isjdbc:oracle:thin:@ (description= (Load_balance=on)(Address= (PROTOCOL=TCP) (host=127.0.0.1) (port=1521))(Address= (PROTOCOL=TCP) (host=10.132.111.14) (port=1521))(Connect_data= (service_name=busi_db))) The load_balance=on indicates

Tags: Database mirroring failover WMI EventSQL Server database mirroring based on availability group failoverMicrosoft began to introduce database mirroring from SQL Server 2005 and quickly became a popular failover solution. A big problem with database mirroring is that failover is database-level, so if a database fails, mirroring will only switch to that databa

In the master-slave architecture, create an event on the master, as shown below: mysqlshowcreateevent 'insert' \ G; * *************************** 1. row ***************************.. In the master-slave architecture, create an event on the master, as shown below: mysqlshowcreateevent 'insert' \ G; * *************************** 1. row ***************************.. In the master-slave architecture, create an event and virtual host on the master, as shown below: When slave is synced, the resul

Http://inthirties.com: 90/thread-1304-1-1.html The customer's RAC environment has problems. A taf connection is established. Once one of the servers is disconnected, the server cannot be failover. The entire RAC database cannot be accessed. The configuration of listener is coming to mind immediately. Check the configuration and status of listener immediately. Due to the customer's privacy agreement, only words can be used to recallThe operation was c

not start resource 'ora. RAC. rac1.inst '. [Oracle @ racdb01 admin] $ crs_start ora. RAC. rac1.instCRS-1028: dependency analysis failed because:'Resource in unknown state: ora. RAC. rac1.inst'CRS-0223: Resource 'ora. RAC. rac1.inst 'has placement error. 19. I continued to search for information on the Internet. After a long time, it was still invalid.20. I saw an article on Metalink saying that tnsnarac. ora is faulty.21. Check my tnsnarac. ora and find that the original racdb service (for tran

MySQL master database High Availability-Dual-master single-active failover Solution Preface: (PS: Preface was added later when this article was modified.) Some bloggers raised some questions and opinions about this article and paid attention to it, it also prompted me to make this set of things more practical and safer. Later I thought about it and made some changes to some conditions and behaviors in the script. After several modifications, I finally

may consider configuring persistence on the slave instance. When the master instance goes down, you can manually or automatically promote the master instance from the instance to continue providing services! After the master instance is restored, the data is synchronized from the original Instance. After the synchronization is completed, the data is restored to the original master-slave state! To meet this requirement, we need the cooperation of keepalive. On the one hand, keepalive provides VI

#故障转移 Failover#当其中一个节点关闭宕机时, the service in its node is transferred to another node.The swarm detects that the node1 fails and marks the state of the fault node as down; Docker node LS to see the status of Node1 downAt the same time Swarm will dispatch the service on the Node1 to other resource nodes to run; Docker service PS Web_server to see its process and status#访问server#便于分析, redeploy aDocker Service Create--name=htdocs_nginx--replicas=3 NginxDoc

The role switching between the Data guard master and slave libraries is divided into the following two types:1) SwitchoverSwithchover are usually man-made, planned role-swapping, such as upgrades. It is usually lossless, i.e. there is no data loss. Its implementation is mainly divided into two phases:1.Primary converted to Standby2.Standby (one) converted to primary2) FailoverFailover refers to the fact that standby has to act as a primay role due to primary failure, which is likely to result in

Windows Fail-over Clustering is very useful for servers fail over, when configuring this function some common issues we mi Ght Encounter, I shared the solutions as follows:1) Cluster quorum setting cannot be successful.Most likely, it's due to access permission of the 3th share folders. We need to check whether the target folder permission includes all the related machine name (especially the fail over Clust ER name). As the sample below, configure all the related nodes has full Control authorit

Keepalived VIP automatic failover Keepalived: 1. The keepalived process is stopped. 2. track_script detection failed in keepalived. Haproxy Detection: Vrrp_script chk_haproxy {Script "killall-0 haproxy" # cheaper than pidofInterval 2 # check every 2 secondsWeight-2} Switch related logs: tail-f/var/log/messages Keepalived_vrrp [1, 32408]: VRRP_Script (chk_haproxy) failedKeepalived_vrrp [32408]: VRRP_Instance (VI_1) initialized ed higher prio advertKeep

Redis Sentinel Master-Slave Switching (failover) solution, detailed configuration Author: oyhk 2013-10-10 23:55:49 0 Reviews 629 views Redis Source Learning notes Master-slave replication Blog Category:Redis Redis C Redis Source Learning notes article List Because the picture is larger and the zoom is blurred, double-click to open the View ^_^ Master-slave replication is simply to synchronize data from one Redis database to another Redis database,

performance of Master is not good enough, you can use a new powerful enough machine first as slave, and then all the system downtime maintenance, then the slave into master, all services use the new master to continue to work. The conversion from this master to the replica set is then started. The advantage is that the downtime can be relatively short. Disadvantages ... The service was interrupted ... In addition, all systems point to the new master when the scale of the system may be modified

address in DNSThen switch to the WINS tab: Uncheck: Enable LMHOSTS lookup, disable the NetBIOS feature on TCP/IP, confirmThen change the network priority order;In a network connection----Click organize----TICK menu----advanced----Local Area Connection priority higher than heartbeat lineSecond HSR2 Configure the heartbeat line to open the VM virtual machine configurationThe steps are set in the same way as the first one, exceptConfigure heartbeat Address: 100.100.100.2 255.255.255.0; no need to

Slave status\g ' |grep "Slave_io_running" | awk ' {print $} ')slave_sql_running=$ (MYSQL-U$USER-P$PASSWORD-E ' show Slave status\g ' |grep "Slave_sql_running" | awk ' {print $} ')echo "plese fix the server of $IP error now!" > $mysql _path/letterletter= $mysql _path/letterMYSQL-P$PASSWORD-E "Use test;"if [[$?! = 0]]ThenMail-s "{$ip}_database connect lost the srcprits fix It Now"$email Killall-9 HeartbeatKillall-9 mysqld/etc/init.d/mysqld startSleep $sleeptimeMYSQL-P$PASSWORD-E "Use test;"If [$?

: -: GenevaINFO [7f2cb44a4700] [routing:failover] listening on0.0.0.0:7001; read-Write .- to- - A: -: atINFO [7f13125a2700] [routing:failover] listening on0.0.0.0:7001; read-Write .- to- - A: -: atINFO [7f2816b4a700] [routing:failover] listening on0.0.0.0:7001; read-Write .- to- - A: at:WuyiINFO [7fec2b5f4700] [routing:failover] listening on0.0.0.0:7001; read-Write .- to- - A: -:GenevaINFO [7ff971019700] [routing:failover] listening on0.0.0.0:7001; read-write [[email protected] bin]# MySQL-U