content_image/764817.jpg content_image/764812.jpg content_image/764811.jpg
• --ndb-log-empty-epochs=[ON|OFF] 

<img src='content_image/764817.jpg'>

Causes epochs during which there were no changes to be written to the ndb_apply_status  and ndb_binlog_index  tables, even when log_slave_updates  is enabled. 

By default this option is disabled. Disabling --ndb-log-empty-epochs  causes epoch transactions with no changes not to be written to the binary log, although a row is still written even for an empty epoch in ndb_binlog_index . 

Because --ndb-log-empty-epochs=1  causes the size of the ndb_binlog_index  table to increase independently of the size of the binary log, users should be prepared to manage the growth of this table, even if they expect the cluster to be idle a large part of the time. 

• --ndb-log-empty-update=[ON|OFF] 

<img src='content_image/764812.jpg'>

Causes updates that produced no changes to be written to the ndb_apply_status  and ndb_binlog_index  tables, when when log_slave_updates  is enabled. 

By default this option is disabled ( OFF ). Disabling --ndb-log-empty-update  causes updates with no changes not to be written to the binary log. 

• --ndb-log-exclusive-reads=[0|1] 

<img src='content_image/764811.jpg'>

