Currently our Reimport mechanism, deletes all indices in ES by using a wildcard. This is not possible in ES8 unless the configuration

action.destructive_requires_name

is set to

false

That happens because unlike ES7 the configuration is automatically set to true in ES8.

ATs:

• We now fetch the names of all indices which we wanna delete before deleting them instead of using a wildcard
• We can write an IT to verify this behavious if possible

Testing Notes:
1. Start Optimize 3.10.x with ES 8.5.0 with data
2. Do not stop ES
3. Stop Optimize
4. Go to reimport folder, run ./reimport