RxJava 2: Stats about messages dropped because of BackPressure?

Question

I am using RxJava 2 Flowable with DROP BackPressure strategy. Is there any way to collect information / stats about how many messages are actually dropped because of the BackPressure?

Solution

Flowable#onBackpressureDrop(consumer -> {}); http://reactivex.io/RxJava/2.x/javadoc/io/reactivex/Flowable.html#onBackpressureDrop(io.reactivex.functions.Consumer)

There is an overload that takes an onDrop handler you can use for counting. — akarnokd, Jan 16 '17 at 09:08
Indeed, thanks @akarnokd ! http://reactivex.io/RxJava/2.x/javadoc/io/reactivex/Flowable.html#onBackpressureDrop(io.reactivex.functions.Consumer) — Thomas, Jan 16 '17 at 11:38

score 2 · Accepted Answer · answered Jan 17 '17 at 08:16

2

There is an overload that takes an onDrop handler you can use for counting.

Generally, it is advised to check an operator's overloads for additional features.

answered Jan 17 '17 at 08:16

akarnokd

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Thanks. There's also a method on the Flowable: http://reactivex.io/RxJava/2.x/javadoc/io/reactivex/Flowable.html#onBackpressureDrop(io.reactivex.functions.Consumer) – Thomas Jan 18 '17 at 08:54

RxJava 2: Stats about messages dropped because of BackPressure?

Solution

1 Answers1