ndb_blob_tool — Check and Repair BLOB and TEXT columns of NDB Cluster Tables Enable optimizations for selection of nodes for transactions. Enabled by default; use  --skip-ndb- optimized-node-selection  to disable. Command-Line Format --ndb-optimized-node-selection Command-Line Format --no-defaults • --no-defaults • --print-defaults Do not read default options from any option file other than login file. Print program argument list and exit. Display help text and exit; same as --help. • --usage • --verbose Provide extra information in the tool’s output regarding its progress. Command-Line Format --verbose Type Boolean Default Value FALSE Command-Line Format --usage Command-Line Format --print-defaults • --version Command-Line Format --version Display version information and exit. First we create an  NDB  table in the  test  database, using the  CREATE TABLE  statement shown here: Example USE test; CREATE TABLE btest ( c0 BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, c1 TEXT, c2 BLOB ) ENGINE=NDB; Then we insert a few rows into this table, using a series of statements similar to this one: INSERT INTO btest VALUES (NULL, ’x’, REPEAT(’x’, 1000)); shell>  ndb_blob_tool --check-orphans --verbose -d test btest When run with  --check-orphans  against this table,  ndb_blob_tool  generates the following output: 4279