Method getNewIndexDir

solr/core/src/java/org/apache/solr/core/SolrCore.java:398–425

Returns the indexdir as given in index.properties. If index.properties exists in dataDir and there is a property index available, and it points to a valid directory in dataDir that is returned. Else dataDir/index is returned. Only called for creating new indexSearchers and indexwriters. Use t

()

  /**
   * Returns the indexdir as given in index.properties. If index.properties exists in dataDir and
   * there is a property <i>index</i> available, and it points to a valid directory in dataDir that
   * is returned. Else dataDir/index is returned. Only called for creating new indexSearchers and
   * indexwriters. Use the getIndexDir() method to know the active index directory
   *
   * @return the indexdir as given in index.properties
   * @throws SolrException if for any reason an index directory cannot be determined.
   */
  public String getNewIndexDir() {
    Directory dir = null;
    try {
      dir =
          getDirectoryFactory()
              .get(getDataDir(), DirContext.META_DATA, getSolrConfig().indexConfig.lockType);
      String result = getIndexPropertyFromPropFile(dir);
      if (!result.equals(lastNewIndexDir)) {
        log.debug("New index directory detected: old={} new={}", lastNewIndexDir, result);
      }
      lastNewIndexDir = result;
      return result;
    } catch (IOException e) {
      String errorMessage = "Error in getNewIndexDir, exception: ";
      log.error(errorMessage, e);
      // See SOLR-11687. It is inadvisable to assume we can do the right thing for any but a small
      // number of exceptions that were caught and swallowed in getIndexProperty.
      throw new SolrException(ErrorCode.SERVER_ERROR, errorMessage, e);
    } finally {
      if (dir != null) {
        try {
          getDirectoryFactory().release(dir);
        } catch (IOException e) {
          log.error("Exception releasing {}", dir, e);