Revision as of 14:24, November 2, 2016

Rolling back a migration

When rolling back a migration, you will restore the data backup that was created before the migration. See How do I preserve my data through the migration?.

Start

Stop and disable auto-run on all new GWS nodes that were run during the migration.
```
chkconfig gws disable; service gws stop
```
Restore the Cassandra database from the snapshot you took before the migration. Detailed instruction depends on your Cassandra version and can be obtained here:
- http://docs.datastax.com/en/cassandra/1.2/cassandra/operations/ops_backup_snapshot_restore_t.html
- https://docs.datastax.com/en/cassandra_win/2.2/cassandra/operations/opsBackupSnapshotRestore.html
Enable the Jetty service on all nodes:
```
chkconfig jetty9 enable
```
Run GWS service on all nodes
```
service jetty9 start
```

Enforce synchronization with ConfigServer by using the OPS API:

/api/v2/ops/genesys-environments/ON_PREMISE_ENVIRONMENT/synchronization

End

@@ Line 1: / Line 1: @@
 = Rolling back a migration=
-When rolling back a migration, restore the data backup that was created before the migration. See [[MigPreparation#How_do_I_preserve_my_data_through_the_migration.3F|How do I preserve my data through the migration?]].
+When rolling back a migration, you will restore the data backup that was created before the migration. See [[MigPreparation#How_do_I_preserve_my_data_through_the_migration.3F|How do I preserve my data through the migration?]].
-{{Editgrn_open}}From Irina - needs steps to restore a backup{{Editgrn_close}}
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