Examples of org.apache.hadoop.hbase.HTableDescriptor.modifyFamily()

Class org.apache.hadoop.hbase.HTableDescriptor

Examples of org.apache.hadoop.hbase.HTableDescriptor.modifyFamily()

org.apache.hadoop.hbase.HTableDescriptor.modifyFamily()
Modifies the existing column family. @param family HColumnDescriptor of family to update @return this (for chained invocation)


    // change an individual CF's config option to 2 & online schema update
    LOG.info("hbase.hstore.compaction.min should now be 2");
    HColumnDescriptor hcd = new HColumnDescriptor(htd.getFamily(FAMILY));
    hcd.setValue("hbase.hstore.compaction.min", String.valueOf(2));
    htd.modifyFamily(hcd);
    admin.modifyTable(TABLE, htd);
    while (null != (st = admin.getAlterStatus(TABLE)) && st.getFirst() > 0) {
      LOG.debug(st.getFirst() + " regions left to update");
      Thread.sleep(40);
    }

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    // Finally, ensure that we can remove a custom config value after we made it
    LOG.info("Removing CF config value");
    LOG.info("hbase.hstore.compaction.min should now be 5");
    hcd = new HColumnDescriptor(htd.getFamily(FAMILY));
    hcd.setValue("hbase.hstore.compaction.min", null);
    htd.modifyFamily(hcd);
    admin.modifyTable(TABLE, htd);
    while (null != (st = admin.getAlterStatus(TABLE)) && st.getFirst() > 0) {
      LOG.debug(st.getFirst() + " regions left to update");
      Thread.sleep(40);
    }

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    byte [] familyName = hcd.getName();
    if(!htd.hasFamily(familyName)) {
      throw new InvalidFamilyOperationException("Family '" +
        Bytes.toString(familyName) + "' doesn't exists so cannot be modified");
    }
    htd.modifyFamily(hcd);
    this.services.getTableDescriptors().add(htd);
    return htd;
  }


  /**

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