ndb_print_schema_file 从集群架构文件获取诊断信息。ndb_print_schema_file obtains diagnostic information from a cluster schema file.

用法Usage

ndb_print_schema_file file_name

file_name 是集群架构文件的名称。有关集群架构文件的更多信息，请参阅 NDB 集群数据节点文件系统目录。file_name is the name of a cluster schema file. For more information about cluster schema files, see NDB Cluster Data Node File System Directory.

像 ndb_print_backup_file 和 ndb_print_sys_file（与大多数其他 NDB 工具不同，这些工具通常在管理服务器主机上运行或连接到管理服务器），ndb_print_schema_file 必须在集群数据节点上运行，因为它直接访问数据节点文件系统。由于它不使用管理服务器，因此当管理服务器未运行时，甚至在集群完全关闭时也可以使用该工具。Like ndb_print_backup_file and ndb_print_sys_file (and unlike most of the other NDB utilities that are intended to be run on a management server host or to connect to a management server) ndb_print_schema_file must be run on a cluster data node, since it accesses the data node file system directly. Because it does not make use of the management server, this utility can be used when the management server is not running, and even when the cluster has been completely shut down.

附加选项Additional Options

无。None.