ambari hadoop

[Email protected] ambari-web]# Brunch Watch--Server -OctTen: A: +-Info: Application started on http://localhost:3333/ -OctTen: A: --Info: Compiled891Files into5Files, copied260 inch3988ms -OctTen: at: A-Info: Compiled Messages.js and790Cached files into App.jsinch788ms^[[[e^c[[email Protected] ambari-web]# ^C[[email protected] Ambari-web]# Brunch Watch--Server -O

The agent is a core module of Ambari, which is responsible for executing commands (install/start/stop) and escalation status (Liveness/progress/alert) on the cluster nodes.To understand the implementation details and even modify the source code, first of all to have a general macro understanding. I took a cursory look at the agent code and thought that we could start with three basic abstractions to describe the overall overview.AbstractThe agent defi

After you restart the ambari-server, call the install and start APIs, and then return 200. This problem occurs because the server does not receive the heartbeat of the agent after it is started, that is, it does not establish a connection with the agent. At this time, calling the API will only change the status of the cluster service, the actual server does not send commands. For more information about Agent and server connections, go to http:

This morning the cluster space is full, mobile Ambari Metrics collector Log Directory after the service can not start, the log is as follows:Java.net.ConnectException:Connection refused at Sun.nio.ch.SocketChannelImpl.checkConnect (Native Method) At Sun.nio.ch.SocketChannelImpl.finishConnect (Socketchannelimpl.java:712) at Org.apache.zookeeper.ClientCnxnSocketNIO.doTransport (Clientcnxnsocketnio.java:361) at Org.apache.zookeeper.clientcnxn$sendthread.

Python script query Ambari error messageYum-y Install PYTHON-PSYCOPG2#!/usr/bin/pythonImportSYSImportPSYCOPG2#Modify the following five optionsPsql_database ="Ambari"Psql_user="Ambari"Psql_password="Bigdata"Psql_host="127.0.0.1"Psql_port="5432"Conn= Psycopg2.connect (Database=psql_database, User=psql_user, Password=psql_password, Host=psql_host, port=psql_port) c

I think one of the most interesting places in Ambari is how to compute dag (directed acyclic graph, a direction- free graph) Let's briefly summarize how Ambari determines the execution process: depending on the metadata information of the cluster, the Ambari server establishes a stage DAG at the time of the execution of a operation, according to which DAG there

HDP2.6 later versions, after deploying HDP, the Falcon Web UI warning is inaccessible because a JDBC driver is not specified as a workaround: # wget –O je-5.0.73.jar Http://search.maven.org/remotecontent?filepath=com/sleepycat/je/5.0.73/je-5.0.73.jar #mv remotecontent?filepath=com%2Fsleepycat%2Fje%2F5.0.73%2Fje-5.0.73.jar /usr/share/je-5.0.73.jar#ambari-server setup --jdbc-db=bdb --jdbc-driver=/usr/share/je-5.0.73.jar#

caused By:org.postgresql.util.PSQLException:FATAL:no pg_hba.conf entry for Host "127.0.0.1", User "Ambari", Database "a Mbari ", SSL offAt Org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication (connectionfactoryimpl.java:291)At Org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl (connectionfactoryimpl.java:108)At Org.postgresql.core.ConnectionFactory.openConnection (connectionfactory.java:66)The above issues were encountered when s

Https://github.com/EsharEditor/ambari-hue-service VI Metainfo.xml Wget tar asciidoc krb5-devel libxml2-devel libxslt-devel openldap-devel python-devel Python-simplejson Python-setuptools python-psycopg2 sqlite-devel rsync saslwrapper-devel pycrypto gmp-devel libyaml-devel Cyrus-sasl-plain Cyrus-sasl-devel Cyrus-sasl-gssapi Libffi-devel Package Download url:https://pkgs.org/ Yum install-y wget Yum Install-y Tar Yum Install-y AsciiDoc Yum Install-y

-repo-1.hortonworks.com/HDP/ubuntu14/2.x/updates/2.4.0.0/ hdp-2.4.0.0-ubuntu14-deb.tar.gz > 1.log 2>1 Nohup wget-c http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.20/repos/ubuntu14/ hdp-utils-1.1.0.20-ubuntu14.tar.gz > 2.log 2>1 1 copy these three files to/var/www/html/hadoop Cd/var/www/html mkdir Hadoop 2 run HTTP service, unzip three files to/var/www/html/hadoo