Although Flume has good advantages attached to it, it does have some disadvantages pulling it down on certain aspects. They are as follows:
- Weak ordering guarantee.
- Does Not guarantee that message reaching is unique (duplicate messages might pop in at times, in many scenarios).
- For an enterprise, sizing the hardware of a typical Flume can be tricky, and in most cases, it's trial and error. Because of this, its scalability aspect is often put under a lens.
- The throughput that Flume can handle depends on the backing store of the channel. So, scalability and reliability is under question when the choice of backing store is not chosen wisely considering all factors.
Clearly Flume’s advantages overweight its disadvantages ...