Thank you for clarification. I agree, that in some situation it would be nice to have an ability to trigger a platform-specific task by it’s name with some default args. But platform agnostic compute requires a separate discussion, I think.
Initially I wanted to highlight a couple of possible workarounds like: - Executing a native java task by it’s name. The task itself could hook a c++ library and perform it’s business [1]. - Calling a Java service [2] with the same logic. But later I realized that unfortunately both of these options are missing for C++. I created a new ticket in Apache Ignite Jira [3]. As a further workaround you may take a look into ContiniousQueries API, in order to trigger some internal logic based on a cache value. [1] - https://apacheignite-net.readme.io/docs/platform-interoperability#section-compute-in-mixed-platform-clusters [2] - https://apacheignite-net.readme.io/docs/calling-java-services [3] - https://issues.apache.org/jira/browse/IGNITE-12177 From: codie Sent: Tuesday, September 17, 2019 10:00 AM To: user@ignite.apache.org Subject: Re: Running a C++ Thick Node compute func from a Java Thick Node We have a polyglot environment, thus people choose a different language depending on their use-case. In consequence some algorithms are programmed in C++ or Fortran. We usually implement a "task" and these tasks can be used/called by others (using the name in ignite compute) without having to care what's behind (C++, Scala or anything else). Polyglot is a rising topic, thus I was surprised I couldn't cross languages barriers when integrating operations in Ignite and C++ thick nodes. Am 9/16/2019 um 6:38 PM schrieb Alexandr Shapkin: Json, Could you share an example of why do you need this feature? In general, platform-specific nodes should be able to execute only native code. I.e. C++ -> C++, C#-> C# etc. But since a thick client is kind of a wrapper around Java one it’s quite easy to call a Java code on a remote node. From: Igor Sapego Sent: Monday, September 16, 2019 6:14 PM To: user Subject: Re: Running a C++ Thick Node compute func from a Java Thick Node Hello, Such function is not supported for now. You can raise a ticket if it's something you'd like to have in Ignite. Best Regards, Igor On Mon, Sep 16, 2019 at 6:00 PM codie <constantin.d...@gmail.com> wrote: Hello, I have two nodes running with a TCP Discovery Spi, one is a C++ Thick node and one is a Java Thick node. The C++ node has the examples compute func "CountWords" registered. How can I trigger this function from the Java thick nodes? Does "RegisterComputeFunc" not inform other nodes, that the compute function can be found on this specific c++ node? Thanks, Json
