solr error

2014-06-18 23:05:19,250 WARN org.apache.hadoop.util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2014-06-18 23:05:19,264 WARN org.apache.hadoop.security.authentication.server.AuthenticationFilter: 'signature.secret' configuration not set, using a random value as secret
2014-06-18 23:05:20,756 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../contrib/extraction/lib (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../contrib/extraction/lib).
2014-06-18 23:05:20,756 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../dist/ (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../dist).
2014-06-18 23:05:20,756 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../contrib/clustering/lib/ (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../contrib/clustering/lib).
2014-06-18 23:05:20,756 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../dist/ (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../dist).
2014-06-18 23:05:20,756 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../contrib/langid/lib/ (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../contrib/langid/lib).
2014-06-18 23:05:20,757 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../dist/ (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../dist).
2014-06-18 23:05:20,757 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../contrib/velocity/lib (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../contrib/velocity/lib).
2014-06-18 23:05:20,757 WARN org.apache.solr.core.SolrResourceLoader: Can't find (or read) directory to add to classloader: ../../../dist/ (resolved as: /var/lib/solr/collection-log_shard2_replica1/../../../dist).