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From Yakov Zhdanov <yzhda...@apache.org>
Subject Re: Local cache on client node.
Date Tue, 01 Dec 2015 07:32:25 GMT
I think there is nothing bad in this. I would leave it as is and just
properly fix javadoc that local cache can be created.

--Yakov

2015-12-01 10:21 GMT+03:00 Denis Magda <dmagda@gridgain.com>:

> Alex,
>
> This is seems to be one more poor documented feature :)
>
> To be serious my preference is to throw an exception in response to an
> attempt to create a LOCAL cache on a client node because client nodes can't
> store cache data by notion.
>
> Any other thoughts?
>
> --
> Denis
>
>
> On 11/30/2015 12:41 PM, Alexey Kuznetsov wrote:
>
>> Ignites,
>>
>> If I start client node and create local cache on it seems that local cache
>> created on client node.
>> Is this correct behaviour or not not?
>>
>>  From API consistency - seems not, because PARTITIONED and REPLICATED
>> caches
>> throw exception.
>>
>> But from user point it may be very useful in some cases, because LOCAL
>> cache is a kind of HashMap on "steroids" (it has transactions, evictions,
>> and more).
>>
>> So we should throw exception or describe in documentation.
>>
>> Thoughs?
>>
>> Code that show local cache on client node:
>>
>> public class LocalCacheOnClient {
>>      public static void main(String[] args) throws IgniteException {
>>          IgniteConfiguration cfgSrv = new IgniteConfiguration();
>>          cfgSrv.setGridName("srv");
>>          Ignite n1 = Ignition.start(cfgSrv);
>>
>>          IgniteConfiguration cfgClm = new IgniteConfiguration();
>>          cfgClm.setGridName("cln");
>>          cfgClm.setClientMode(true);
>>          Ignite n2 = Ignition.start(cfgClm);
>>
>>          CacheConfiguration<Integer, Integer> ccfg = new
>> CacheConfiguration<>("local");
>>          ccfg.setCacheMode(CacheMode.LOCAL);
>>
>>          IgniteCache<Integer, Integer> c = n2.getOrCreateCache(ccfg);
>>
>>          c.put(1, 100);
>>
>>          n1.close(); // stop server node
>>
>>          c.put(2, 200); // local cache works fine.
>>
>>          System.out.println(c.get(1));
>>          System.out.println(c.get(2));
>>      }
>> }
>>
>>
>>
> --
> Regards,
> Denis Magda
> Lead Professional Services Engineer, GridGain Systems
> http://www.gridgain.com/
>
>

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