title: HBase acl commands are too slow
body: <p>I have configured HBase-1.1.5 and Hadoop-2.7.2 with Kerberos security.</p>
  
  <p>I have enabled authorization for HBase.</p>
  
  <p>When executing any authorization command like <code>user_permission</code>, <code>grant</code>, <code>revoke</code>, etc.</p>
  
  <p>Its getting more than 40 seconds to execute</p>
  
  <p>Below are hbase-site.xml configuration properties</p>
  
  <pre><code>&lt;property&gt;
      &lt;name&gt;hbase.master&lt;/name&gt;
      &lt;value&gt;IP:60000&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.rootdir&lt;/name&gt;
      &lt;value&gt;hdfs://IP:9000/HBase&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.cluster.distributed&lt;/name&gt;
      &lt;value&gt;true&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.zookeeper.quorum&lt;/name&gt;
      &lt;value&gt;IP1:2181,IP2:2181,IP3:2181&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.master.port&lt;/name&gt;
      &lt;value&gt;60000&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.master.info.port&lt;/name&gt;
      &lt;value&gt;60010&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.regionserver.port&lt;/name&gt;
      &lt;value&gt;60020&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.regionserver.info.port&lt;/name&gt;
      &lt;value&gt;60030&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.security.authentication&lt;/name&gt;
      &lt;value&gt;KERBEROS&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.master.keytab.file&lt;/name&gt;
      &lt;value&gt;masterkeytab&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.regionserver.keytab.file&lt;/name&gt;
      &lt;value&gt;regionserverkeytab&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.master.kerberos.principal&lt;/name&gt;
      &lt;value&gt;masterprincipal&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.regionserver.kerberos.principal&lt;/name&gt;
      &lt;value&gt;regionserverprincipal&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.rpc.engine&lt;/name&gt;
      &lt;value&gt;org.apache.hadoop.hbase.ipc.SecureRpcEngine&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.ssl.enabled&lt;/name&gt;
      &lt;value&gt;true&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.superuser&lt;/name&gt;
      &lt;value&gt;@HadoopUser&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.security.authorization&lt;/name&gt;
      &lt;value&gt;true&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.coprocessor.master.classes&lt;/name&gt;
      &lt;value&gt;org.apache.hadoop.hbase.security.access.AccessController&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;hbase.coprocessor.region.classes&lt;/name&gt;
      &lt;value&gt;org.apache.hadoop.hbase.security.token.TokenProvider,org.apache.hadoop.hbase.security.access.AccessController&lt;/value&gt;
  &lt;/property&gt;
  </code></pre>
  
  <p>Help me to improve performance on HBase acl</p>
  
  <p>Thanks in advance</p>