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https://issues.apache.org/jira/browse/IGNITE-10884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16740429#comment-16740429
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Ignite TC Bot commented on IGNITE-10884:
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{panel:title=--> Run :: All: No blockers
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
[TeamCity *--> Run :: All*
Results|https://ci.ignite.apache.org/viewLog.html?buildId=2770385&buildTypeId=IgniteTests24Java8_RunAll]
> Failure to perform non-MVCC SQL from transactions
> -------------------------------------------------
>
> Key: IGNITE-10884
> URL: https://issues.apache.org/jira/browse/IGNITE-10884
> Project: Ignite
> Issue Type: Bug
> Components: mvcc, sql
> Affects Versions: 2.7
> Reporter: Ilya Kasnacheev
> Assignee: Roman Kondakov
> Priority: Blocker
> Fix For: 2.8
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> MVCC was added with expectation is that it would not affect existing KV
> transactional code, neither SQL on non-TRANSACTIONAL_SNAPSHOT caches.
> However, this turned not to be the case: if you open an OPTIMISIC
> SERIALIZABLE transaction and do SQL query to fetch data from table, exception
> will be thrown with *Only pessimistic repeatable read transactions are
> supported at the moment*
> {code}
> Exception in thread "main" 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
> IgniteTransactionTester.testTransactionException(IgniteTransactionTester.java:53)
> at IgniteTransactionTester.main(IgniteTransactionTester.java:38)
> Caused by: class
> org.apache.ignite.internal.processors.query.IgniteSQLException: Only
> pessimistic repeatable read transactions are supported at the moment.
> at
> org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.tx(MvccUtils.java:690)
> at
> org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.tx(MvccUtils.java:671)
> at
> org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.runQueryTwoStep(IgniteH2Indexing.java:1793)
> at
> org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.doRunDistributedQuery(IgniteH2Indexing.java:2610)
> at
> org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.doRunPrepared(IgniteH2Indexing.java:2315)
> at
> org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.querySqlFields(IgniteH2Indexing.java:2209)
> at
> org.apache.ignite.internal.processors.query.GridQueryProcessor$4.applyx(GridQueryProcessor.java:2135)
> at
> org.apache.ignite.internal.processors.query.GridQueryProcessor$4.applyx(GridQueryProcessor.java:2130)
> at
> org.apache.ignite.internal.util.lang.IgniteOutClosureX.apply(IgniteOutClosureX.java:36)
> at
> org.apache.ignite.internal.processors.query.GridQueryProcessor.executeQuery(GridQueryProcessor.java:2707)
> at
> org.apache.ignite.internal.processors.query.GridQueryProcessor.querySqlFields(GridQueryProcessor.java:2144)
> at
> org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.query(IgniteCacheProxyImpl.java:685)
> ... 4 more
> {code}
> This is a major regression towards 2.6. Please see linked reproducer
> (IgniteTransactionTester class).
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