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L. Moudgal
L. Moudgal

Reputation: 1

Apache Ignite Continuous Query

Are Continuous Queries executed in a multi-threaded mode or just a single thread? I am trying to find out what the performance implications are when a millions of entries are added to a cache for which ContinuousQuery is enabled.

Upvotes: 0

Views: 373

Answers (1)

Stanislav Lukyanov
Stanislav Lukyanov

Reputation: 2157

Well, both - depends on what you mean by "multi-threaded". Query's remote filter is executed by the same thread that performs the cache update, but the updates themselves are generally performed in multiple threads.

On the performance considerations: calling filters and listeners is relatively fast and having a continuous query should not slow down your application, but make sure not to put heavy code into them and not to acquire locks or use transactions to avoid deadlocks.

Upvotes: 2

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