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Receiving org.apache.storm.utils.NimbusLeaderNotFoundException as executed CrawlTopology

See original GitHub issue

I created new StormCrawler-based project by following steps described in I. Without modifying crawler-confer.yaml, I executed CrawlTopology.java which comes with the project and then I received error as below:

org.apache.storm.utils.NimbusLeaderNotFoundException: Could not find leader nimbus from seed hosts [localhost]. Did you specify a valid list of nimbus hosts for config nimbus.seeds?
	at org.apache.storm.utils.NimbusClient.getConfiguredClientAs(NimbusClient.java:90)
	at org.apache.storm.StormSubmitter.topologyNameExists(StormSubmitter.java:371)
	at org.apache.storm.StormSubmitter.submitTopologyAs(StormSubmitter.java:233)
	at org.apache.storm.StormSubmitter.submitTopology(StormSubmitter.java:311)
	at org.apache.storm.StormSubmitter.submitTopology(StormSubmitter.java:157)
	at com.digitalpebble.stormcrawler.ConfigurableTopology.submit(ConfigurableTopology.java:85)
        at com.mycompany.crawler.CrawlTopology.run(CrawlTopology.java:68)
	at com.digitalpebble.stormcrawler.ConfigurableTopology.start(ConfigurableTopology.java:50)
	at com.mycompany.crawler.CrawlTopology.main(CrawlTopology.java:38)

I searched Google what the problem causes, it seems related Zookeper. But I am using Tomcat server. What should I do for preventing this error?

Issue Analytics

State:
Created 7 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

3reactions

jniochecommented, Feb 2, 2017

Add -local and conf crawler-conf.yaml as argument to the topology class. You don’t have to run it with Storm, it works with Eclipse. If local is not specified, it tries to connect to a Storm cluster and since you haven’t installed one you are getting this error

1reaction

jniochecommented, Feb 2, 2017

@sebastian-nagel that wiki page needs fixing. Running with mvn-exec does not work, see #324

The README file generated by the archetype contains the correct instructions i.e run it with Storm installed (but it also works with Eclipse and is a good way of debugging)

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