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Storm supports transactional topologies that can provide durability. They are dependent on a spout that is repeatable- where you can request the failed input ag

• nathanmarz 14y ago
  Actually transactional topologies are superseded by Trident, which is much easier to use: https://github.com/nathanmarz/storm/wiki/Trident-tutorial https://github.com/nathanmarz/storm/wiki/Trident-tutorial Here's an explanation on how Trident achieves fully fault-tolerant, idempotent semantics: https://github.com/nathanmarz/storm/wiki/Trident-state https://github.com/nathanmarz/storm/wiki/Trident-state