TTL problem

Dear Elasticsearch,

We use the elasticsearch's _ttl feature which is not clear to us. The next
is written in the latest documentation :

Expired documents will be automatically deleted regularly. You can
dynamically set the indices.ttl.interval to fit your needs. The default
value is 60s .
The deletion orders are processed by bulk. You can set
indices.ttl.bulk_size to fit your needs. The default value is 10000.

Knowing this, we modified the indices.ttl.interval to 30s and
indices.ttl.bulk_size to 3. After, we sent some (2000) logs into our index
with _ttl : 1m .
After a while, we noticed that more logs have been deleted as expected. So
all logs were deleted within 30s after one minute elapsed but there only 3
logs should have been deleted.
Is this normal ? We thought that only 3 logs will be deleted. How is the
deletion of logs implemented on the elasticsearch ? Could you give me more
information on the deletion of logs ?

--
You received this message because you are subscribed to the Google Groups "elasticsearch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/a032659e-1170-42c8-b156-d66bf6c726cb%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.