Search in cassandra

[Mahdi Manavi]

As in the "search in lost data" section , we should get tombstone from
atleast one node. We should use the database strategy which keeps the
deleted data in a table. And in the filtring proccess it should triger
bloom filter and search in the table and in the case that the search has
result report it to user. This approach cause to increased search speed and
it decrease search cost.