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Java HdfsConstants.LEASE_HARDLIMIT_PERIOD属性代码示例

本文整理汇总了Java中org.apache.hadoop.hdfs.protocol.HdfsConstants.LEASE_HARDLIMIT_PERIOD属性的典型用法代码示例。如果您正苦于以下问题:Java HdfsConstants.LEASE_HARDLIMIT_PERIOD属性的具体用法?Java HdfsConstants.LEASE_HARDLIMIT_PERIOD怎么用?Java HdfsConstants.LEASE_HARDLIMIT_PERIOD使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在org.apache.hadoop.hdfs.protocol.HdfsConstants的用法示例。


在下文中一共展示了HdfsConstants.LEASE_HARDLIMIT_PERIOD属性的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: renewLease

/**
 * Renew leases.
 * @return true if lease was renewed. May return false if this
 * client has been closed or has no files open.
 **/
boolean renewLease() throws IOException {
  if (clientRunning && !isFilesBeingWrittenEmpty()) {
    try {
      namenode.renewLease(clientName);
      updateLastLeaseRenewal();
      return true;
    } catch (IOException e) {
      // Abort if the lease has already expired. 
      final long elapsed = Time.monotonicNow() - getLastLeaseRenewal();
      if (elapsed > HdfsConstants.LEASE_HARDLIMIT_PERIOD) {
        LOG.warn("Failed to renew lease for " + clientName + " for "
            + (elapsed/1000) + " seconds (>= hard-limit ="
            + (HdfsConstants.LEASE_HARDLIMIT_PERIOD/1000) + " seconds.) "
            + "Closing all files being written ...", e);
        closeAllFilesBeingWritten(true);
      } else {
        // Let the lease renewer handle it and retry.
        throw e;
      }
    }
  }
  return false;
}
 
开发者ID:naver,项目名称:hadoop,代码行数:28,代码来源:DFSClient.java


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