Hello!

It was discussed recently:
http://apache-ignite-users.70518.x6.nabble.com/Migrate-from-2-6-to-2-7-td25738.html

I don't think you will be able to use SQL from transactions in Ignite 2.7.
While this looks like a regression, you will have to work around it for now.

Do you have a small reproducer for this issue? I could file a ticket if you
had. You can try to do it yourself, too.

Regards,
-- 
Ilya Kasnacheev


ср, 9 янв. 2019 г. в 15:33, Prasad Bhalerao <[email protected]>:

> Hi,
>
> My cache configuration is as follows. I am using TRANSACTIONAL and not
> TRANSACTIONAL_SNAPSHOT.
>
>
>
> private CacheConfiguration ipContainerIPV4CacheCfg() {
>
>   CacheConfiguration ipContainerIpV4CacheCfg = new 
> CacheConfiguration<>(CacheName.IP_CONTAINER_IPV4_CACHE.name());
>   ipContainerIpV4CacheCfg.setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL);
>   ipContainerIpV4CacheCfg.setWriteThrough(ENABLE_WRITE_THROUGH);
>   ipContainerIpV4CacheCfg.setReadThrough(false);
>   ipContainerIpV4CacheCfg.setRebalanceMode(CacheRebalanceMode.ASYNC);
>   
> ipContainerIpV4CacheCfg.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC);
>   ipContainerIpV4CacheCfg.setBackups(1);
>   Factory<IpContainerIpV4CacheStore> storeFactory = 
> FactoryBuilder.factoryOf(IpContainerIpV4CacheStore.class);
>   ipContainerIpV4CacheCfg.setCacheStoreFactory(storeFactory);
>   ipContainerIpV4CacheCfg.setIndexedTypes(DefaultDataAffinityKey.class, 
> IpContainerIpV4Data.class);
>   
> ipContainerIpV4CacheCfg.setCacheStoreSessionListenerFactories(cacheStoreSessionListenerFactory());
>   ipContainerIpV4CacheCfg.setSqlIndexMaxInlineSize(84);
>   RendezvousAffinityFunction affinityFunction = new 
> RendezvousAffinityFunction();
>   affinityFunction.setExcludeNeighbors(true);
>   ipContainerIpV4CacheCfg.setAffinity(affinityFunction);
>   ipContainerIpV4CacheCfg.setStatisticsEnabled(true);
>
>   return ipContainerIpV4CacheCfg;
> }
>
>
> Thanks,
> Prasad
>
> On Wed, Jan 9, 2019 at 5:45 PM Павлухин Иван <[email protected]> wrote:
>
>> Hi Prasad,
>>
>> > javax.cache.CacheException: Only pessimistic repeatable read
>> transactions are supported at the moment.
>> Exception mentioned by you should happen only for cache with
>> TRANSACTIONAL_SNAPSHOT atomicity mode configured. Have you configured
>> TRANSACTIONAL_SNAPSHOT atomicity for any cache? As Denis mentioned
>> there are number of bugs related to TRANSACTIONAL_SNAPSHOT, e.g. [1].
>>
>> [1] https://issues.apache.org/jira/browse/IGNITE-10520
>>
>> вс, 6 янв. 2019 г. в 20:03, Denis Magda <[email protected]>:
>> >
>> > Hello,
>> >
>> > Ignite versions prior to 2.7 never supported transactions for SQL
>> queries. You were enlisting SQL in transactions for your own risk. Ignite
>> version 2.7 introduced true transactional support for SQL based on MVCC.
>> Presently it's in beta with GA to be available around Q2-Q3 this year. The
>> community is working on optimizations.
>> >
>> > Please refer to this docs for more details:
>> > https://apacheignite.readme.io/docs/multiversion-concurrency-control
>> > https://apacheignite-sql.readme.io/docs/transactions
>> >
>> https://apacheignite-sql.readme.io/docs/multiversion-concurrency-control
>> >
>> > --
>> > Denis
>> >
>> > On Sat, Jan 5, 2019 at 7:48 PM Prasad Bhalerao <
>> [email protected]> wrote:
>> >>
>> >> Can someone please explain if anything has changed in ignite 2.7.
>> >>
>> >> Started getting this exception after upgrading to 2.7.
>> >>
>> >>
>> >> ---------- Forwarded message ---------
>> >> From: Prasad Bhalerao <[email protected]>
>> >> Date: Fri 4 Jan, 2019, 8:41 PM
>> >> Subject: Re: Getting javax.cache.CacheException after upgrading to
>> Ignite
>> >> 2.7
>> >> To: <[email protected]>
>> >>
>> >>
>> >> Can someone please help me with this?
>> >>
>> >> On Thu 3 Jan, 2019, 7:15 PM Prasad Bhalerao <
>> [email protected]
>> >> wrote:
>> >>
>> >> > Hi
>> >> >
>> >> > After upgrading to 2.7 version I am getting following exception. I am
>> >> > executing a SELECT sql inside optimistic transaction with
>> serialization
>> >> > isolation level.
>> >> >
>> >> > 1) Has anything changed from 2.6 to 2.7 version?  This work fine
>> prior to
>> >> > 2.7 version.
>> >> >
>> >> > After changing it to Pessimistic and isolation level to
>> REPEATABLE_READ it
>> >> > works fine.
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > *javax.cache.CacheException: Only pessimistic repeatable read
>> transactions
>> >> > are supported at the moment.at
>> >> >
>> org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.query(IgniteCacheProxyImpl.java:697)at
>> >> >
>> org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.query(IgniteCacheProxyImpl.java:636)at
>> >> >
>> org.apache.ignite.internal.processors.cache.GatewayProtectedCacheProxy.query(GatewayProtectedCacheProxy.java:388)at
>> >> >
>> com.qualys.agms.grid.dao.AbstractDataGridDAO.getFieldResultsByCriteria(AbstractDataGridDAO.java:85)*
>> >> >
>> >> > Thanks,
>> >> > Prasad
>> >> >
>>
>>
>>
>> --
>> Best regards,
>> Ivan Pavlukhin
>>
>

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