You’d need to use a thick client to call that API.

> On 25 Aug 2022, at 10:39, [email protected] wrote:
> 
> sorry,i find igniteClient.compute() has no affinityCallAsync 
> <https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/IgniteCompute.html#affinityCallAsync-java.util.Collection-int-org.apache.ignite.lang.IgniteCallable->
>  method ,does igniteClient can call affinityCallAsync 
> <https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/IgniteCompute.html#affinityCallAsync-java.util.Collection-int-org.apache.ignite.lang.IgniteCallable->
> 
> [email protected] <mailto:[email protected]>
>  
> From: Stephen Darlington <mailto:[email protected]>
> Date: 2022-08-24 20:27
> To: user <mailto:[email protected]>
> Subject: Re: count cache key number
> There are a number of ways to tackle this. 
> 
> If your cache split the key into distinct fields rather that a concatenated 
> string, you could SQL-enable your cache and get your count as a simple SELECT 
> statement.
> 
> Alternatively, there’s an affinity compute task that takes a partition 
> (affinityCallAsync 
> <https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/IgniteCompute.html#affinityCallAsync-java.util.Collection-int-org.apache.ignite.lang.IgniteCallable->).
>  If you use that and a ScanQuery that fetches records from a specific 
> partition (ScanQuery 
> <https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/cache/query/ScanQuery.html#ScanQuery-int->),
>  you’ll get something like a map-reduce. (You could also use the map-reduce 
> API, but an affinity call is probably easier.)
> 
>> On 24 Aug 2022, at 11:59, [email protected] <mailto:[email protected]> 
>> wrote:
>> 
>> hi
>> do I pass cache in distribute compute than use cache scan ,that faster than 
>> I use a cache scan in client api.
>> 
>> ---Original---
>> From: "[email protected] <mailto:[email protected]>"<[email protected] 
>> <mailto:[email protected]>>
>> Date: Wed, Aug 24, 2022 17:06 PM
>> To: "user"<[email protected] <mailto:[email protected]>>;
>> Subject: count cache key number
>> 
>> Hi,
>>     I have a cache ,it's key like 
>>    "mobile:140000"
>>    "mobile:140001",
>>     "address:test1",
>>     "address:test2",
>>     "address:test3"。
>>    I want to count mobile number and address number。
>>    address number is 3 and mobile number is 2。I see Ignite doc has mapreduce 
>> job,but it seem not example iterator cache key。 is there any method to 
>> iterator key in mapreduce job。Thank you very much
>> 
>> [email protected] <mailto:[email protected]>

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