The Hortonworks Community Connection is now live. A completely rebuilt Q&A forum, Knowledge Base, Code Hub and more, backed by the experts in the industry.

You will be redirected here in 10 seconds. If your are not redirected, click here to visit the new site.

The legacy Hortonworks Forum is now closed. You can view a read-only version of the former site by clicking here. The site will be taken offline on January 31,2016

HDP on Linux – Installation Forum

hadoop Can not start

  • #27924
    Z Cq
    Member

    my hadoop Can not start. help!
    /usr/lib/hadoop/bin/start-all.sh
    starting namenode, logging to /var/log/hadoop/root/hadoop-root-namenode-master.out
    Failed to connect to db jdbc:postgresql://master/ambarirca as user mapred password mapred and driver org.postgresql.Driver with java.io.IOException: Can’t connect to database jdbc:postgresql://master/ambarirca
    at org.apache.ambari.log4j.common.store.DatabaseStore.(DatabaseStore.java:55)
    at org.apache.ambari.log4j.hadoop.mapreduce.jobhistory.JobHistoryAppender.activateOptions(JobHistoryAppender.java:116)
    at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:257)
    at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:133)
    at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:97)
    at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:689)
    at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:647)
    at org.apache.log4j.PropertyConfigurator.parseCatsAndRenderers(PropertyConfigurator.java:568)
    at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:442)
    master: starting datanode, logging to /var/log/hadoop/hdfs/hadoop-hdfs-datanode-master.out

  • Author
    Replies
  • #27929
    tedr
    Moderator

    Hi Z,

    It looks like you need to start Ambari-server prior to running the start-all.sh script. And if this is an ambari installed cluster is there a reason you are not using ambari to start up hadoop?

    Thanks,
    Ted.

    #28047
    Z Cq
    Member

    Hi ted,
    When i Install Ambari-server, can’t start DataNode.so i run then start-all.sh.
    Now,I AM find the error is host name.the name is ‘master’ can’t start DataNode,But ‘Master’ is ok

    Thanks,
    Z.

The forum ‘HDP on Linux – Installation’ is closed to new topics and replies.

Support from the Experts

A HDP Support Subscription connects you experts with deep experience running Apache Hadoop in production, at-scale on the most demanding workloads.

Enterprise Support »

Become HDP Certified

Real world training designed by the core architects of Hadoop. Scenario-based training courses are available in-classroom or online from anywhere in the world

Training »

Hortonworks Data Platform
The Hortonworks Data Platform is a 100% open source distribution of Apache Hadoop that is truly enterprise grade having been built, tested and hardened with enterprise rigor.
Get started with Sandbox
Hortonworks Sandbox is a self-contained virtual machine with Apache Hadoop pre-configured alongside a set of hands-on, step-by-step Hadoop tutorials.
Modern Data Architecture
Tackle the challenges of big data. Hadoop integrates with existing EDW, RDBMS and MPP systems to deliver lower cost, higher capacity infrastructure.