java.lang.Exception: java.lang.IllegalStateException: Target host must not be null, or set in parameters.

nutch-user | BlackIce | 3 years ago
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    Nutch 2.x from svn.

    nutch-user | 3 years ago | BlackIce
    java.lang.Exception: java.lang.IllegalStateException: Target host must not be null, or set in parameters.
  2. 0

    Error: Target host must not be null, or set in parameters

    Stack Overflow | 3 years ago | smiley
    java.lang.IllegalStateException: Target host must not be null, or set in parameters.
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    How to get JSON from URL

    Stack Overflow | 2 years ago | Malaika Khan
    java.lang.IllegalStateException: Target host must not be null, or set in parameters. scheme=null, host=null, path=maps.google.com/maps/api/geocode/json
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    java.lang.IllegalStateException: Adapter is detached

    Stack Overflow | 3 years ago | John Error
    java.lang.IllegalStateException: Adapter is detached.
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    Problem while checkin multiple files from different machines on same BIMServer.

    GitHub | 2 years ago | vpanchal
    java.lang.IllegalStateException: Invalid use of BasicClientConnManager: connection still allocated. Make sure to release the connection before allocating another one.

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Root Cause Analysis

  1. java.lang.IllegalStateException

    Target host must not be null, or set in parameters.

    at org.apache.http.impl.client.DefaultRequestDirector.determineRoute()
  2. Apache HttpClient
    AbstractHttpClient.execute
    1. org.apache.http.impl.client.DefaultRequestDirector.determineRoute(DefaultRequestDirector.java:787)
    2. org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:414)
    3. org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
    4. org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
    5. org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
    5 frames
  3. Apache Solr Solrj
    SolrServer.add
    1. org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:393)
    2. org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:197)
    3. org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:117)
    4. org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:68)
    5. org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:54)
    5 frames
  4. org.apache.nutch
    SolrIndexWriter.write
    1. org.apache.nutch.indexwriter.solr.SolrIndexWriter.write(SolrIndexWriter.java:84)
    1 frame
  5. Apache Nutch
    IndexerOutputFormat$1.write
    1. org.apache.nutch.indexer.IndexWriters.write(IndexWriters.java:87)
    2. org.apache.nutch.indexer.IndexerOutputFormat$1.write(IndexerOutputFormat.java:48)
    3. org.apache.nutch.indexer.IndexerOutputFormat$1.write(IndexerOutputFormat.java:43)
    3 frames
  6. Hadoop
    TaskInputOutputContext.write
    1. org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.write(MapTask.java:638)
    2. org.apache.hadoop.mapreduce.TaskInputOutputContext.write(TaskInputOutputContext.java:80)
    2 frames
  7. Apache Nutch
    IndexingJob$IndexerMapper.map
    1. org.apache.nutch.indexer.IndexingJob$IndexerMapper.map(IndexingJob.java:120)
    2. org.apache.nutch.indexer.IndexingJob$IndexerMapper.map(IndexingJob.java:67)
    2 frames
  8. Hadoop
    LocalJobRunner$Job$MapTaskRunnable.run
    1. org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
    2. org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
    3. org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
    4. org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:223)
    4 frames
  9. Java RT
    Thread.run
    1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    2. java.util.concurrent.FutureTask.run(FutureTask.java:262)
    3. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    4. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    5. java.lang.Thread.run(Thread.java:745)
    5 frames