hadoop cluster setup

(0.00sec) mysql>insertintot2 VALUES (1, ' Lisan '); queryok,1rowaffected (0.00sec) mysql>select*from t2;+------+-------+|id| name|+------+-------+|1|lisan|+------+-------+1 rowinset (0.00NBSP;SEC)View the T2 table on 204:Mysql> SELECT * FROM t2;+------+-------+|ID |Name |+------+-------+|1 | Lisan |+------+-------+1 row in Set (0.00 sec)When you see the results above, the distributed MySQL data is successfully synchronized.Problems encountered during installation:1, unable to connect with conne

Fluentd is an open source collection event and log system that currently offers 150 + extensions that let you store big data for log searches, data analysis and storage. Official address http://fluentd.org/plugin address http://fluentd.org/plugin/ Kibana is a Web UI tool that provides log analysis for ElasticSearch, and it can be used to efficiently search, visualize, analyze, and perform various operations on logs. Official Address http://www.elasticsearch.org/overview/kibana/ Elasticsearch is

Baidu's high-performance computing system (mainly backend data training and computing) currently has 4000 nodes, more than 10 clusters, and the largest cluster Scale is more than 1000 nodes. Each node consists of 8-core CPU, 16 GB memory, and 12 TB hard disk. The daily data volume is more than 3 PB. The planned architecture will have more than 10 thousand nodes, and the daily data volume will exceed 10 pb.The underlying computing resource management l

Recently using vagrant to build a Hadoop cluster with 3 hosts, using Cloudera Manager to manage it, initially virtualized 4 hosts on my laptop, one of the most Cloudera manager servers, Several other running Cloudera Manager Agent, after the normal operation of the machine, found that the memory consumption is too strong, I intend to migrate two running Agent to another working computer, then use the Vagant

automatically shutdown, do not know whether it is the OS problem or SSH problem or Kafka own problems, Anyway, I switched to-daemon mode to start Kafka without automatically shutdown after disconnecting the shell. 4) Create a topic named Test with two partitions and two replicas:bin/kafka-topics.sh--create--zookeeper 10.0.0.100:2181,10.0.0.101:2181,10.0.0.102:2181--replication-factor 2-- Partitions 2--topic TestOnce created, use the following command to view the topic status:bin/kafk

1. Introduction to the MapReduce theory1.1. MapReduce Programming ModeMapReduce uses the idea of "divide and conquer", distributes the operation of large data sets to a node under the management of a master node, and then obtains the final result by consolidating the intermediate results of each node. In short, MapReduce is "the decomposition of tasks and the aggregation of results".In Hadoop, there are two machine roles used to perform mapreduce task

-scripts/ifcfg-eth0(4) Restart the virtual machine in effect 4. Using Xshell client to access virtual machine Xshell is a particularly useful Linux remote client, with many quick features that are much more convenient than simply manipulating commands in a virtual machine.(1) Download and install Xshell(2) Click on the menu bar--New, enter the name and IP address of the virtual machine and determine(3) Accept and save(4) Enter user name and password (auto-save)At this point, three virtual machin

There was an article in detail about how to install Hadoop+hbase+zookeeper The title of the article is: Hadoop+hbase+zookeeper distributed cluster construction perfect operation Its website: http://blog.csdn.net/shatelang/article/details/7605939 This article is about hadoop1.0.0+hbase0.92.1+zookeeper3.3.4. The installation file versions are as follows: Please

is message51 Can see, re-election after the consumer end also output some logs, meaning that when the offset was submitted found that the current scheduler has been invalidated, but quickly regained the new effective scheduler, the automatic return of the offset auto-commit, Verifying the value of the submitted offset also proves that the offset submission did not cause an error due to leader switching.As above, we also verified the function correctness of the consumer terminal when the single

Hadoopnamenode vs RM Small clusters: Namenode and RM can be deployed on a single node Large clusters: Because Namenode and RM have large memory requirements, they should be deployed separately. If deployed separately, ensure that the contents of the slaves file are the same, so that the NM and DN can be deployed on one node PortA port number of 0 instructs the server to start in a free port, but this is generally discouraged because it is incompati ble with setting