apache/hadoop · error · IOException

CacheManager section had no <nextDirectiveId>

Error message

CacheManager section had no <nextDirectiveId>

What it means

Error "CacheManager section had no <nextDirectiveId>" thrown in apache/hadoop.

Source

Thrown at hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/OfflineImageReconstructor.java:1079

        return date.getTime();
      } catch (ParseException e) {
        throw new IOException("Failed to parse ISO date string " + dateStr, e);
      }
    }
  }

  private class CacheManagerSectionProcessor implements SectionProcessor {
    static final String NAME = "CacheManagerSection";

    @Override
    public void process() throws IOException {
      Node node = new Node();
      loadNodeChildren(node, "CacheManager fields", "pool", "directive");
      CacheManagerSection.Builder b =  CacheManagerSection.newBuilder();
      Long nextDirectiveId =
          node.removeChildLong(CACHE_MANAGER_SECTION_NEXT_DIRECTIVE_ID);
      if (nextDirectiveId == null) {
        throw new IOException("CacheManager section had no <nextDirectiveId>");
      }
      b.setNextDirectiveId(nextDirectiveId);
      Integer expectedNumPools =
          node.removeChildInt(CACHE_MANAGER_SECTION_NUM_POOLS);
      if (expectedNumPools == null) {
        throw new IOException("CacheManager section had no <numPools>");
      }
      b.setNumPools(expectedNumPools);
      Integer expectedNumDirectives =
          node.removeChildInt(CACHE_MANAGER_SECTION_NUM_DIRECTIVES);
      if (expectedNumDirectives == null) {
        throw new IOException("CacheManager section had no <numDirectives>");
      }
      b.setNumDirectives(expectedNumDirectives);
      b.build().writeDelimitedTo(out);
      long actualNumPools = 0;
      while (actualNumPools < expectedNumPools) {
        try {

View on GitHub (pinned to 2add963021)

Solutions

1. Add the missing <nextDirectiveId> element to the CacheManager section of the fsimage XML.
2. Regenerate the fsimage XML with 'hdfs oiv' from a valid fsimage.

When it happens

Trigger: Thrown by oiv -r when the CacheManager section header of the fsimage XML lacks the <nextDirectiveId> element.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/682049e2f80f5b29. Report an issue: GitHub.