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The Status  column in each of these rows provides information about the MySQL server’s connection to the cluster and about the cluster binary log’s status, respectively. The Status  information is in the form of comma-delimited set of name/value pairs. 

The connection  row’s Status  column contains the name/value pairs described in the following table. 

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The binlog  row’s Status  column contains information relating to NDB Cluster Replication. The name/ value pairs it contains are described in the following table. 

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See Section 23.6, “NDB Cluster Replication” , for more information. 

The remaining rows from the output of SHOW ENGINE NDB STATUS  which are most likely to prove useful in monitoring the cluster are listed here by Name : 

• NdbTransaction : The number and size of NdbTransaction  objects that have been created. An NdbTransaction  is created each time a table schema operation (such as CREATE TABLE  or ALTER TABLE ) is performed on an NDB  table. 

• NdbOperation : The number and size of NdbOperation  objects that have been created. 

• NdbIndexScanOperation : The number and size of NdbIndexScanOperation  objects that have been created. 

