Examples with MasterQuotasObserver org.apache.hadoop.hbase.quotas.MasterQuotasObserver used on opensource projects

Example 1 with MasterQuotasObserver

use of org.apache.hadoop.hbase.quotas.MasterQuotasObserver in project hbase by apache.

the class HMaster method updateConfigurationForQuotasObserver.

/**
 * Adds the {@code MasterQuotasObserver} to the list of configured Master observers to
 * automatically remove quotas for a table when that table is deleted.
 */
@InterfaceAudience.Private
public void updateConfigurationForQuotasObserver(Configuration conf) {
    // We're configured to not delete quotas on table deletion, so we don't need to add the obs.
    if (!conf.getBoolean(MasterQuotasObserver.REMOVE_QUOTA_ON_TABLE_DELETE, MasterQuotasObserver.REMOVE_QUOTA_ON_TABLE_DELETE_DEFAULT)) {
        return;
    }
    String[] masterCoprocs = conf.getStrings(CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY);
    final int length = null == masterCoprocs ? 0 : masterCoprocs.length;
    String[] updatedCoprocs = new String[length + 1];
    if (length > 0) {
        System.arraycopy(masterCoprocs, 0, updatedCoprocs, 0, masterCoprocs.length);
    }
    updatedCoprocs[length] = MasterQuotasObserver.class.getName();
    conf.setStrings(CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY, updatedCoprocs);
}