Hi, I'm trying build solr index with MapReduce (Hadoop) and I'm using https://issues.apache.org/jira/browse/SOLR-1301 but I've a problem with hadoop version and this patch.
When I compile this patch, I use 0.21.0 hadoop version, I don't have any problem but when I'm trying to run my job in Hadoop (0.0.21) I get some error like this: *Exception in thread "main" java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected* at org.apache.solr.hadoop.SolrOutputFormat.checkOutputSpecs(SolrOutputFormat.java:147) at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:373) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:334) at org.apache.hadoop.mapreduce.Job.submit(Job.java:960) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:976) I try to override the next method: *public void checkOutputSpecs(JobContext job) throws IOException { super.checkOutputSpecs(job); if (job.getConfiguration().get(SETUP_OK) == null) { throw new IOException("Solr home cache not set up!"); } }* by * public void checkOutputSpecs(Job job) throws IOException { super.checkOutputSpecs(job); if (job.getConfiguration().get(SETUP_OK) == null) { throw new IOException("Solr home cache not set up!"); } }* but I continue receive some error: * java.lang.RuntimeException: java.lang.ClassNotFoundException: org.apache.solr.hadoop.SolrOutputFormat at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1128) at org.apache.hadoop.mapreduce.task.JobContextImpl.getOutputFormatClass(JobContextImpl.java:203) at org.apache.hadoop.mapred.Task.initialize(Task.java:487) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:311) at org.apache.hadoop.mapred.Child$4.run(Child.java:217) at java.security.AccessController.doPrivileged(Native Method)* Please, Is someone using this patch with 0.21.0 Version Hadoop?. Can someone help me? Thanks, Joan