ndb_print_frag_file — Print NDB Fragment List File Contents file_name  is the name of an NDB Cluster Disk Data file. Multiple filenames are accepted, separated by spaces. Like  ndb_print_schema_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_file  must be run on an NDB 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. ndb_print_file  supports the following options: For more information, see Section 23.5.10, “NDB Cluster Disk Data Tables” . ndb_print_frag_file  obtains information from a cluster fragment list file. It is intended for use in helping to diagnose issues with data node restarts. file_name  is the name of a cluster fragment list file, which matches the pattern  S X .FragList , where  X is a digit in the range 2-9 inclusive, and are found in the data node file system of the data node having the node ID  nodeid , in directories named  ndb_ nodeid _fs/D N /DBDIH/ , where  N  is  1  or  2 . Each fragment file contains records of the fragments belonging to each  NDB  table. For more information about cluster fragment files, see NDB Cluster Data Node File System Directory. Like  ndb_print_backup_file ,  ndb_print_sys_file , and  ndb_print_schema_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_frag_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. None. 4360 shell>  ndb_print_frag_file /usr/local/mysqld/data/ndb_3_fs/D1/DBDIH/S2.FragList Filename: /usr/local/mysqld/data/ndb_3_fs/D1/DBDIH/S2.FragList with size 8192 noOfPages = 1 noOfWords = 182 Table Data ---------- Num Frags: 2 NoOfReplicas: 2 hashpointer: 4294967040 kvalue: 6 mask: 0x00000000 method: HashMap Storage is on Logged and checkpointed, survives SR ------ Fragment with FragId: 0 -------- Preferred Primary: 2 numStoredReplicas: 2 numOldStoredReplicas: 0 distKey: 0 LogPartId: 0 -------Stored Replica---------- Sample Output Additional Options Usage 23.4.19 ndb_print_frag_file — Print NDB Fragment List File Contents Additional Options • -v : Make output verbose. • -q : Suppress output (quiet mode). • --help ,  -h ,  -? : Print help message. ndb_print_frag_file  file_name