Some SSTables may be compacted very infrequently or have overlapping SSTables for a really long time. That is why, these days, all the compaction strategies include a set of parameters to assist with tombstone eviction. A gravestone is a stone placed over the grave of your loved one with the inscription of the name and other important information you need to have written on it. Sometimes, most individuals might even select to have a picture of their loved ones positioned or engraved on the stone.