title: Solr Index pull fails
body: <p>I have master - slave configuration of solr.On master index will be updated 24X7.its a continuous process.my slave pulls the index from the master after every 30 minutes.</p>
  
  <p>The Problem is this index pull is failing because of the following exception</p>
  
  <blockquote>
    <p>SnapPull failed : org.apache.solr.common.SolrException: Index fetch
    failed :      at
    org.apache.solr.handler.SnapPuller.fetchLatestIndex(SnapPuller.java:329)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     at
    org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:264)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     at
    org.apache.solr.handler.SnapPuller$1.run(SnapPuller.java:159) [:1.4.1
    955763M - mark - 2010-06-17 18:06:42]     at
    java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
    [:1.6.0_26]   at
    java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
    [:1.6.0_26]   at
    java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
    [:1.6.0_26]   at
    java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
    [:1.6.0_26]   at
    java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
    [:1.6.0_26]   at
    java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
    [:1.6.0_26]   at
    java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    [:1.6.0_26]   at
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    [:1.6.0_26]   at java.lang.Thread.run(Thread.java:662) [:1.6.0_26]
    Caused by: org.apache.lucene.store.LockObtainFailedException: Lock
    obtain timed out:
    SimpleFSLock@/data/solr/data/index/lucene-47510fa3e31f1e71e7408a128e1ebac1-write.lock
      at org.apache.lucene.store.Lock.obtain(Lock.java:85) [:2.9.3 951790 -
    2010-06-06 01:30:55]  at
    org.apache.lucene.index.IndexWriter.init(IndexWriter.java:1565)
    [:2.9.3 951790 - 2010-06-06 01:30:55]     at
    org.apache.lucene.index.IndexWriter.(IndexWriter.java:1421)
    [:2.9.3 951790 - 2010-06-06 01:30:55]     at
    org.apache.solr.update.SolrIndexWriter.(SolrIndexWriter.java:191)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     at
    org.apache.solr.update.UpdateHandler.createMainIndexWriter(UpdateHandler.java:98)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     at
    org.apache.solr.update.DirectUpdateHandler2.openWriter(DirectUpdateHandler2.java:173)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     at
    org.apache.solr.update.DirectUpdateHandler2.forceOpenWriter(DirectUpdateHandler2.java:376)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     at
    org.apache.solr.handler.SnapPuller.doCommit(SnapPuller.java:471)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     at
    org.apache.solr.handler.SnapPuller.fetchLatestIndex(SnapPuller.java:319)
    [:1.4.1 955763M - mark - 2010-06-17 18:06:42]     ... 11 more</p>
  </blockquote>
  
  <p>Is this exception because of continuous index updation on master or any other reasons for this.how can i get rid of this.</p>
  
  <p>Thanks in advance.</p>
  
  <p>Regards
  Ram</p>