Last updated on MARCH 08, 2017
Applies to:
MySQL Cluster - Version 7.0 to 7.2 [Release 7.0 to 7.2]Information in this document applies to any platform.
Symptoms
With ndb_log_orig and/or ndb_log_apply_status enabled, sometimes orig_epoch in the ndb_binlog_index table is 0 for events replicated to the mysqld instance. When this happens the epoch for the row is duplicated. For example:
Changes
The issue can start to occur with one or more of the following changes:
- Setting ndb_log_orig = 1
- Setting ndb_log_apply_status = 1
- Changing version to one of the following:
- MySQL Cluster 7.0.31 to 7.0.35 (both included)
- MySQL Cluster 7.1.20 to 7.1.24 (both included)
- MySQL Cluster 7.2.5 to 7.2.8 (both included)
- MySQL Cluster 7.0.31 to 7.0.35 (both included)
Cause
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