Delete based on secondary index

1 
NameSpace - person
Set - personData
PersonId (Key) | name | birthDate 

NameSpace - person
Set - cityVisitedData
PersonId+CityVisited (Key)| cityName | personId

Here person can have many city visited. Use case is that if someone deletes person record then all city visited record should be deleted. I have secondary index on personid for cityVisitedData set. If i delete using PK (PersonId+CityVisited) then only one record will be deleted. But I want to delete all records containing person id. I checked the delete api where it takes key and also tried passing personId in that key but it does not delete anything.

Key key = new Key("person", "cityVisitedData", Value.get(personId));
client.delete(writePolicy, key);

The above code does not delete any record.

2

That’s because a secondary index is used for querying (reading). If you want to delete the records matching a specific query you need to apply a record UDF containing an aerospike:remove() to the query.

There’s an example for how to do this in the Java client section of our site: Transforming Records.

3

Thanks Roben,

I was able to delete the record using udf by providing lua script which takes record as an input. I passed filter statement to execute lua script.

4

Great. It’s best to do that kind of operation as a background scan.

5

Hi Mahesh, I have seen your post on ratelimiting with aerospike on spring cloud gateway. Im firmly looking for the same implementation could you please help me out with the best approach you have foloowed to do it.

like Algorithm: is Token bucket? used operate() or UDF(Lua)for concurrent updates.

looking around 1000 hits in less than a second by a user. Can ping or reach me out at: btrao.java@gmail.com

Reply will be helpful and thanks in advance.