MySQL Group Replication Error Could not find target log file mentioned in relay log info in the index file (Doc ID 2443305.1)

Last updated on MAY 30, 2023

Applies to:

Symptoms

We are unable to re-add instance into an innodb cluster after changing the nic/hostname of the server.

The following error is given:

2018-01-19T01:45:31.066251Z 0 [ERROR] Failed to open the relay log'./foo-relay-bin-group_replication_applier.000002' (relay_log_pos 3541).
2018-01-19T01:45:31.066272Z 0 [ERROR] Could not find target log file mentioned in relay log info in the index file './FOO-group_replication_applier.index' during relay log initialization.
2018-01-19T01:45:31.099316Z 0 [ERROR] Slave: Failed to initialize the master info structure for channel 'group_replication_applier'; its record may still be present in 'mysql.slave_master_info' table, consider deleting it.
2018-01-19T01:45:31.249836Z 0 [ERROR] Failed to open the relay log './foo-relay-bin-group_replication_recovery.000001' (relay_log_pos 4).
2018-01-19T01:45:31.249856Z 0 [ERROR] Could not find target log file mentioned in relay log info in the index file'./FOO-group_replication_recovery.index' during relay log initialization.

Changes

 The error occurs after changing the hostname from foo-db02 to FOO-DB02 when DNS was updated.

Cause

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