redhat cluster

Oracle 9.2.0.4 for Redhat Linux as4 Installation Process Four patch packages of Oracle are stored in the oracle_sp directory.The parameters and configuration files used for installation are stored in the scripts directory.Put SSH and FTP service tools in the tools directory Environment: HP dl380 G4 2cpu 1g mem 3*72g SCSI hard drive (two for RAID 1 and one for separate use)RedHat Linux as4Oracle 9.2.0.4 for

= ' 192.168.40.254 ';temp= '/etc/keepalived/ping.temp ';If [-f ${temp}];thenRm-f ${temp};FiPing ${host}-C 5-w 1 > ${temp};Loss= ' grep-i "packet Loss" ${temp} |grep-o-E ' [0-9]\{0,3\}% ' |sed ' s/%//g ';If [${loss}-gt];thenExit 1;FiExit 0;###############################################8. Import the production environment data structureGalera cluster for MySQL and keepalived are both deployed and completed, the prepared production environment table str

VM1:192.168.220.102 Management node (MGM)vm2:192.168.220.103 Data Node (NDBD1), SQL node (SQL1)VM3:192.168.220.104 Data Node (NDBD2), SQL node (SQL2)MySQL cluster version: 7.4.6 (MSI Installer): http://dev.mysql.com/downloads/cluster/Test tool: Navicate for MySQLThree types of nodes:Management node: Used to manage the cluster common node; daemon NDB_MGMDData node

kafka3_rsa.pub> authorized_keys Note: We can remotely access SSH kafka2 and SSH kafka3 from kafka1 through commands. 2. Build a zookeeper Cluster 1. Copy zookeeper to the/usr/local/zookeeper directory and decompress [Email protected]: ~ # Mkdir/usr/local/zookeeper [Email protected]: ~ # CP ~ /Downloads/zookeeper-3.4.7.tar.gz/usr/local/zookeeper/ [Email protected]:/usr/local/zookeeper # tar-zxvf zookeeper-3.4.7.tar.gz 2. Configure zookeeper Environme

Prepare the Environment node1:192.168.139.2 node2:192.168.139.4 node4:192.168.139.8 node5:192.168.139.9 Node1 as the target end Node2 node4 Node5 as initiator end And the Node2 node4 NODE5 is installed after the Cman+rgmanager is configured as a three-node RHCs high-availability cluster, because GFS2 is a clustered file system, the failed node must be fence with the help of HA cluster, and with the help

Docker redis4.0 cluster (cluster) built This article is from: Docker redis4.0 cluster (cluster) set up a preface The Redis cluster is very familiar to many people, in the last few days, I also have a big Brother also released an article on the Aliyun (centOS7) on the constr

Installing the HA SoftwareFirst, install the softwareThe most stable version is 5.4.0, priority installation stable version 5.4Install depends on package base.data, cluster man pack installation failure reason is missing Base.data packageInstall all cluster. Packages that begin with, you can not install the Cluster.man packageSecond, hit the HA patchExecute the instructions before patching: Inutoc generate

Environment4 nodes of the Hyper-V clusterFailure phenomena Hyper -V Manager cannot remotely manage all some VM Unable to successfully migrate Cause of failureCluster node Time inconsistencyDetailed description and troubleshooting proceduresHyper - V Manager cannot remotely administer all of the clusters in the cluster Hyper-V,650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M00/78/35/wKioL1Z35YPRooJ-AAF1pV8iTc

Redis cluster useRedis Cluster scheme1, client fragmentation. such as: take surplus and so on2, Agent (proxy) fragmentation. By proxy absolute data access, such as: Twemproxy.3,redis cluster. No Center mode,4, Codis (Solution for pea pod development)Redis Cluster reference Documentation: http://redisdoc.com/topic/

command to synchronize and start the NTP service manually from the server: # ntpdate 0.cn.pool.ntp.org # hwclock-w # Systemctl enable Ntpd.service # Systemctl Start Ntpd.service Install SSH service: # yum Install Openssh-server The second step, the preparation is done, now began to deploy the Ceph cluster. Note: The following operations are performed at the Admin-node node, in this article, because Admin-node is shared with e1093, so it can be perf

Hierarchical clustering produce nested sets of clustersFunction Cluster Condensation clustering based on aggregation hierarchical clustering tree Clusterdata Constructing condensation clustering based on sample data Cophenet Cophenet correlation coefficient Inconsistent Inconsistent coefficient Linkage Condensed Hierarchical clustering Tree

ContextYou have decided to use the cluster to provide highly available services when designing or modifying the infrastructure layer.ProblemHow should you design a highly available infrastructure layer to prevent service loss due to a single server or the software it is running on?Impact factorsWhen designing a highly available infrastructure layer, consider the following factors: A hardware component, application, or service failure can make

Percona XtraDB Cluster how to install two Cluster nodes on one server I think it makes no sense to run two or more Percona XtraDB Cluster (PXC) nodes on a single physical server, except for educational and testing purposes, however, this method is still useful in this case. The most popular implementation method seems to be server virtualization, such as using st

In what scenarios are cluster file systems applicable, I will summarize them in one sentence. When multiple nodes need to read and write the same file system, they need to use the cluster file system, it can pass the lock information held by the file system to each node. Experiment 1: Create a gfs2 File System Using the disk shared by iSCSI. multiple nodes can be mounted to the same file system to ensure d

The previous section through Haproxy to do reverse proxy, to achieve internal Web site data access Internal use of the varnish cache server to achieve static and dynamic separation, the load of data to 2 tomcat, static data agent to the Nginx server processing Session-based shared cluster for 2 tomcat servers Data from the tomcat server is stored in the MySQL cluster Nginx is used to process sta

MariaDB Galera Cluster deployment (how to quickly deploy the MariaDB Cluster), galeramariadb MariaDB, as a branch of Mysql, is widely used in open-source projects, such as the Popular openstack. To ensure the high availability of services and improve the load capacity of the system, cluster deployment is essential.MariaDB Galera

5000######### #cluster ##########cluster-enabled YesCluster-config-file nodes_6379.confCluster-node-timeout 15000Cluster-slave-validity-factor 10Cluster-migration-barrier 1Cluster-require-full-coverage No######### #slowlog ##########Slowlog-log-slower-than 10000Slowlog-max-len 128######### #optimize ##########Latency-monitor-threshold 0Notify-keyspace-events ""Hash-max-ziplist-entries 512Hash-max-ziplist-v

5000######### #cluster ##########cluster-enabled YesCluster-config-file nodes_6379.confCluster-node-timeout 15000Cluster-slave-validity-factor 10Cluster-migration-barrier 1Cluster-require-full-coverage No######### #slowlog ##########Slowlog-log-slower-than 10000Slowlog-max-len 128######### #optimize ##########Latency-monitor-threshold 0Notify-keyspace-events ""Hash-max-ziplist-entries 512Hash-max-ziplist-v

Label:When? Why? With MySQL cluster? Reduce data center node pressure and large data processing (read/write separation), using MySQL distribution, one or more application corresponding to a MySQL database. Make shared data from several MySQL databases, such as shopping carts, user objects, etc., in the presence of data nodes. Other data that is not shared are also maintained in the MySQL database itself, which is distributed separately.

Reference: http://blog.csdn.net/jacklondon/archive/2003/05/18/14263.aspx Quote: In multiple versions of Sun JDK/JRE, Chinese support for Redhat has been very poor. When the default installation (no configuration file is modified) and the default font (no setfont) is used in Java code, Chinese characters are always hidden. This is rare in windows and Solaris.There is a saying that sun and RedHat ar