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gvvinblade pushed a commit to branch ignite-12248
in repository https://gitbox.apache.org/repos/asf/ignite.git

commit 382ffae939d73aa4d640ac2991b88dc9a0b8a70d
Merge: f54e7a5 f60771d
Author: Igor Seliverstov <[email protected]>
AuthorDate: Mon Sep 14 10:39:45 2020 +0300

    Merge branch 'master' into ignite-12248

 .gitignore                                         |   6 +
 assembly/libs/README.txt                           |   1 -
 checkstyle/checkstyle.xml                          |   7 +-
 .../jmh/misc/JmhTracingContextBenchmark.java       | 112 ++++
 .../internal/jdbc2/JdbcMetadataSelfTest.java       |   4 +-
 .../ignite/jdbc/thin/JdbcThinMetadataSelfTest.java |  15 +-
 .../SystemViewRowAttributeWalkerGenerator.java     |   4 +
 .../jdbc/JdbcThinCompatibilityTest.java            | 197 ++++++
 .../ignite/compatibility/jdbc/package-info.java}   |  18 +-
 .../junits/IgniteCompatibilityAbstractTest.java    |  87 +--
 .../IgniteCompatibilityBasicTestSuite.java         |   4 +-
 .../ignite/internal/commandline/Command.java       |  31 +
 .../ignite/internal/commandline/CommandList.java   |   5 +-
 .../ignite/internal/commandline/WarmUpCommand.java | 121 ++++
 .../commandline/encryption/EncryptionCommand.java  |   6 +-
 .../commandline/CommandHandlerParsingTest.java     |  36 +-
 .../apache/ignite/util/GridCommandHandlerTest.java |  68 +-
 .../org/apache/ignite/IgniteSystemProperties.java  | 571 +++++++++++++++++
 ...ateCounterMvccImpl.java => SystemProperty.java} |  37 +-
 .../java/org/apache/ignite/cache/CacheManager.java |   6 +-
 .../java/org/apache/ignite/cache/CacheMetrics.java |   2 +-
 .../configuration/DataStorageConfiguration.java    |   6 +-
 .../ignite/configuration/IgniteConfiguration.java  |   2 +-
 .../ignite/internal/GridKernalGatewayImpl.java     |   7 +-
 .../org/apache/ignite/internal/IgniteKernal.java   |  20 +-
 .../ignite/internal/LongJVMPauseDetector.java      |  15 +-
 .../binary/streams/BinaryMemoryAllocatorChunk.java |   6 +-
 .../internal/client/GridClientBeforeNodeStart.java |  66 ++
 .../ignite/internal/client/GridClientFactory.java  |  33 +-
 .../client/GridClientNodeStateBeforeStart.java}    |  19 +-
 .../internal/client/impl/GridClientImpl.java       | 190 ++++--
 .../impl/GridClientNodeStateBeforeStartImpl.java   |  49 ++
 .../impl/connection/GridClientConnection.java      |   9 +
 .../connection/GridClientConnectionManager.java    |  12 +
 .../GridClientConnectionManagerAdapter.java        | 156 +++--
 .../GridClientConnectionManagerOsImpl.java         |   7 +-
 .../connection/GridClientNioTcpConnection.java     |   8 +
 .../client/router/impl/GridRouterClientImpl.java   |   2 +-
 .../client/thin/ClientCacheAffinityMapping.java    |   2 +-
 .../client/thin/ClientClusterGroupImpl.java        |  23 +-
 .../internal/client/thin/ClientClusterImpl.java    |   5 +-
 .../ignite/internal/client/thin/ClientUtils.java   |  21 +-
 .../internal/client/thin/TcpClientChannel.java     |   4 +-
 .../internal/client/thin/TcpIgniteClient.java      |   2 +-
 .../ignite/internal/jdbc/thin/JdbcThinTcpIo.java   |  19 +-
 .../managers/discovery/GridDiscoveryManager.java   |   7 +-
 .../walker/BinaryMetadataViewWalker.java           |  56 ++
 .../systemview/walker/MetastorageViewWalker.java}  |  30 +-
 .../processors/affinity/AffinityAssignment.java    |   5 +-
 .../affinity/GridAffinityAssignmentCache.java      |  11 +-
 .../cache/CacheAffinitySharedManager.java          |   6 +-
 .../processors/cache/CacheGroupContext.java        |  12 +-
 .../processors/cache/CacheMetricsImpl.java         |  37 +-
 .../internal/processors/cache/ExchangeContext.java |   4 +-
 .../processors/cache/GridCacheAdapter.java         |  18 +-
 .../processors/cache/GridCacheConcurrentMap.java   |   5 +-
 .../cache/GridCacheConcurrentMapImpl.java          |  37 +-
 .../processors/cache/GridCacheContext.java         |   6 +-
 .../processors/cache/GridCacheMapEntry.java        |  12 +-
 .../processors/cache/GridCacheMvccManager.java     |   7 +-
 .../cache/GridCachePartitionExchangeManager.java   |  18 +-
 .../processors/cache/GridCacheProcessor.java       |  11 +-
 .../cache/GridCacheSharedTtlCleanupManager.java    |  11 +
 .../processors/cache/GridCacheTtlManager.java      |   5 +-
 .../internal/processors/cache/GridCacheUtils.java  |   5 +-
 .../processors/cache/GridNoStorageCacheMap.java    |   6 +-
 .../cache/PartitionUpdateCounterMvccImpl.java      |   5 +
 .../cache/PartitionUpdateCounterTrackingImpl.java  |   7 +-
 .../internal/processors/cache/WalStateManager.java |  19 +-
 .../binary/CacheObjectBinaryProcessorImpl.java     |  17 +-
 .../distributed/GridDistributedCacheEntry.java     |   3 +-
 .../dht/GridCachePartitionedConcurrentMap.java     |   8 +-
 .../dht/GridDhtTransactionalCacheAdapter.java      |   3 +-
 .../dht/GridPartitionedSingleGetFuture.java        |   4 +-
 .../distributed/dht/atomic/GridDhtAtomicCache.java |  11 +-
 .../CachePartitionPartialCountersMap.java          |  11 +
 .../dht/preloader/GridDhtPartitionDemander.java    | 360 +++++------
 .../preloader/GridDhtPartitionsExchangeFuture.java |  27 +-
 .../dht/preloader/GridDhtPreloader.java            |  46 +-
 .../dht/preloader/GridDhtPreloaderAssignments.java |  16 +
 .../IgniteHistoricalIteratorException.java         |   9 +
 .../dht/topology/GridClientPartitionTopology.java  |  10 +-
 .../dht/topology/GridDhtLocalPartition.java        | 530 ++++-----------
 .../dht/topology/GridDhtPartitionTopology.java     |   4 +-
 .../dht/topology/GridDhtPartitionTopologyImpl.java | 148 ++---
 .../dht/topology/GridDhtPartitionsReservation.java |  20 +-
 .../dht/topology/PartitionsEvictManager.java       | 503 +++++----------
 .../distributed/near/GridNearTxEnlistFuture.java   |   5 +
 .../cache/distributed/near/GridNearTxLocal.java    |  57 +-
 .../GridNearReadRepairAbstractFuture.java          |   4 +-
 .../processors/cache/mvcc/MvccCachingManager.java  |   5 +-
 .../GridCacheDatabaseSharedManager.java            |  57 +-
 .../cache/persistence/GridCacheOffheapManager.java |  55 +-
 .../IgniteCacheDatabaseSharedManager.java          |   9 +
 .../persistence/checkpoint/CheckpointHistory.java  | 137 +++-
 .../cache/persistence/checkpoint/Checkpointer.java |   5 +-
 .../pagelocktracker/LockTrackerFactory.java        |  31 +-
 .../pagelocktracker/SharedPageLockTracker.java     |  58 +-
 .../cache/persistence/file/FilePageStore.java      |   2 +-
 .../cache/persistence/freelist/PagesList.java      |  53 +-
 .../cache/persistence/metastorage/MetaStorage.java |   5 +
 .../pendingtask/DurableBackgroundTask.java         |  17 +
 .../cache/persistence/pagemem/FullPageIdTable.java |   7 +-
 .../cache/persistence/pagemem/PageMemoryImpl.java  |  13 +-
 .../pagemem/PagesWriteThrottlePolicy.java          |   5 +-
 .../pagemem/RobinHoodBackwardShiftHashMap.java     |   4 +-
 .../cache/persistence/tree/BPlusTree.java          |   2 +-
 .../persistence/wal/FileWriteAheadLogManager.java  |  29 +-
 .../wal/filehandle/FileHandleManagerImpl.java      |   2 +-
 .../CacheContinuousQueryEventBuffer.java           |  21 +-
 .../continuous/CacheContinuousQueryHandler.java    |  24 +-
 .../cache/transactions/IgniteTransactionsImpl.java |  16 +-
 .../cache/transactions/IgniteTxManager.java        |  41 +-
 .../cache/transactions/IgniteTxStateImpl.java      |   1 -
 .../cache/transactions/TransactionProxyImpl.java   |  31 +-
 .../TransactionProxyRollbackOnlyImpl.java          |   2 +-
 .../cache/transactions/TxDeadlockDetection.java    |   7 +-
 .../processors/cluster/ClusterProcessor.java       |  10 +-
 .../autoadjust/BaselineAutoAdjustScheduler.java    |   3 +-
 .../baseline/autoadjust/ChangeTopologyWatcher.java |   4 +
 .../datastructures/GridAtomicCacheQueueImpl.java   |   7 +-
 .../processors/diagnostic/DiagnosticProcessor.java |   7 +-
 .../processors/failure/FailureProcessor.java       |   9 +-
 .../internal/processors/job/GridJobProcessor.java  |   6 +-
 .../jobmetrics/GridJobMetricsProcessor.java        |   7 +-
 .../localtask/DurableBackgroundTasksProcessor.java |  35 +-
 .../persistence/DistributedMetaStorageImpl.java    |  42 +-
 .../odbc/jdbc/JdbcConnectionContext.java           |  10 +-
 .../processors/odbc/jdbc/JdbcRequestHandler.java   |   4 +-
 .../transactions/PlatformTransactions.java         |   8 +
 .../internal/processors/query/QueryUtils.java      |   9 +-
 .../internal/processors/rest/GridRestCommand.java  |   8 +-
 .../processors/rest/GridRestProcessor.java         |  15 +-
 .../internal/processors/rest/GridRestProtocol.java |   5 +
 .../GridClientNodeStateBeforeStartRequest.java}    |  25 +-
 .../client/message/GridClientWarmUpRequest.java    |  90 +++
 .../NodeStateBeforeStartCommandHandler.java        |  75 +++
 .../rest/handlers/task/GridTaskCommandHandler.java |   2 +-
 .../rest/protocols/GridRestProtocolAdapter.java    |   5 +
 .../rest/protocols/tcp/GridTcpRestNioListener.java |  22 +
 .../rest/protocols/tcp/GridTcpRestProtocol.java    |   6 +-
 .../GridRestNodeStateBeforeStartRequest.java}      |  16 +-
 .../request/GridRestWarmUpRequest.java}            |  38 +-
 .../ignite/internal/processors/tracing/MTC.java    |  30 +-
 .../ignite/internal/util/GridLogThrottle.java      |   6 +-
 .../ignite/internal/util/GridReflectionCache.java  |   6 +-
 .../apache/ignite/internal/util/GridUnsafe.java    |   7 +-
 .../apache/ignite/internal/util/IgniteUtils.java   |   5 +-
 .../ignite/internal/util/OffheapReadWriteLock.java |  19 +-
 .../ignite/internal/util/StripedExecutor.java      |   8 +-
 .../internal/util/io/GridUnsafeDataInput.java      |   3 +-
 .../internal/util/io/GridUnsafeDataOutput.java     |   3 +-
 .../util/nio/GridNioRecoveryDescriptor.java        |   8 +-
 .../ignite/internal/util/nio/GridNioServer.java    |  24 +-
 .../util/portscanner/GridJmxPortFinder.java        |   2 +
 .../util/tostring/GridToStringBuilder.java         |  14 +-
 .../internal/util/tostring/SBLengthLimit.java      |   4 +-
 .../visor/node/VisorBasicConfiguration.java        |   3 +-
 .../tcp/internal/GridNioServerWrapper.java         |  27 +-
 .../tcp/internal/InboundConnectionHandler.java     |   7 +-
 .../internal/TcpCommunicationConfiguration.java    |  11 +-
 .../spi/deployment/local/LocalDeploymentSpi.java   |   2 +
 .../ignite/spi/discovery/tcp/ClientImpl.java       |   6 +-
 .../ignite/spi/discovery/tcp/ServerImpl.java       |   8 +-
 .../ignite/spi/discovery/tcp/TcpDiscoveryImpl.java |   3 +-
 .../ignite/spi/discovery/tcp/TcpDiscoverySpi.java  |  16 +
 .../spi/systemview/view/BinaryMetadataView.java    |  85 +++
 .../systemview/view/MetastorageView.java}          |  36 +-
 .../apache/ignite/spi/tracing/NoopTracingSpi.java  |   2 +
 .../ignite/startup/cmdline/CommandLineStartup.java | 116 +++-
 .../main/resources/META-INF/classnames.properties  |   2 +
 modules/core/src/test/config/log4j-test.xml        |   9 +
 .../ignite/cache/ResetLostPartitionTest.java       |   8 +-
 .../client/ClientCacheConfigurationTest.java       |  56 +-
 .../org/apache/ignite/client/IgniteBinaryTest.java |  25 +
 .../ignite/internal/metric/JmxExporterSpiTest.java | 120 ++++
 .../ignite/internal/metric/SystemViewSelfTest.java | 116 ++++
 .../cache/CacheGroupsMetricsRebalanceTest.java     | 110 ++--
 .../cache/WalModeChangeAdvancedSelfTest.java       |   4 +-
 ...iteExchangeLatchManagerCoordinatorFailTest.java |  45 +-
 ...CachePartitionLostAfterSupplierHasLeftTest.java |  18 +-
 .../distributed/CacheRentingStateRepairTest.java   |  21 +-
 .../IgniteCacheClientNodeChangingTopologyTest.java |   2 +
 ...eScheduleResendPartitionsAfterEvictionTest.java | 135 ----
 .../dht/topology/BlockedEvictionsTest.java         | 483 ++++++++++++++
 .../DropCacheContextDuringEvictionTest.java        | 103 ---
 .../dht/topology/EvictPartitionInLogTest.java      |  38 +-
 .../EvictionWhilePartitionGroupIsReservedTest.java | 168 +++++
 .../GridDhtLocalPartitionSyncEviction.java         | 125 ++++
 ...MovingPartitionIsEvictedDuringClearingTest.java | 173 +++++
 .../PartitionsEvictManagerAbstractTest.java        | 212 ------
 .../PartitionsEvictionTaskFailureHandlerTest.java  |  49 --
 ...reloadingRestartWhileClearingPartitionTest.java | 166 +++++
 .../RentingPartitionIsOwnedDuringEvictionTest.java |  94 ++-
 ...yPartitionHistoricallyWithReorderedUpdates.java | 223 +++++++
 .../processors/cache/persistence/EagerTtlTest.java | 203 ++++++
 .../IgnitePdsCacheEntriesExpirationTest.java       |   4 +-
 .../IgnitePdsPartitionFilesDestroyTest.java        |   2 +-
 .../db/wal/WalRecoveryTxLogicalRecordsTest.java    |  31 +
 ...acheRemoteMultiplePartitionReservationTest.java |   6 +-
 .../TxRollbackOnMapOnInvalidTopologyTest.java      |   4 +-
 .../cache/warmup/BlockedWarmUpConfiguration.java   |   4 +-
 ...ockedWarmUp.java => BlockedWarmUpStrategy.java} |   6 +-
 .../SimpleObservableWarmUpConfiguration.java       |   2 +-
 ...Up.java => SimpleObservableWarmUpStrategy.java} |   2 +-
 .../processors/cache/warmup/WarmUpSelfTest.java    |  10 +-
 .../cache/warmup/WarmUpTestPluginProvider.java     |   8 +-
 .../tcp/TcpClientDiscoverySpiSelfTest.java         |   2 +
 .../cmdline/CommandLinePrintPropertiesTest.java    | 113 ++++
 .../junits/common/GridAbstractExamplesTest.java    |   5 +
 .../junits/common/GridCommonAbstractTest.java      |   2 +-
 .../ignite/testsuites/IgniteBasicTestSuite.java    |   4 -
 .../ignite/testsuites/IgniteCacheTestSuite7.java   |  10 +-
 .../ignite/testsuites/IgnitePdsMvccTestSuite3.java |  24 +-
 .../ignite/testsuites/IgnitePdsTestSuite3.java     |   2 +
 .../ignite/testsuites/IgnitePdsTestSuite4.java     |   2 +
 .../ignite/testsuites/IgniteStartUpTestSuite.java  |   6 +-
 ...ridCommandHandlerClusterByClassTest_help.output |   3 +
 ...andHandlerClusterByClassWithSSLTest_help.output |   3 +
 modules/gce/pom.xml                                |   2 +-
 .../h2/DurableBackgroundCleanupIndexTreeTask.java  |  19 +
 .../processors/query/h2/database/H2Tree.java       |   9 +-
 .../cache/metric/SqlViewExporterSpiTest.java       | 111 +++-
 .../db/LongDestroyDurableBackgroundTaskTest.java   | 105 ++-
 modules/jms11/README.txt                           |  29 -
 modules/jms11/licenses/apache-2.0.txt              | 202 ------
 modules/jms11/pom.xml                              | 104 ---
 .../apache/ignite/stream/jms11/JmsStreamer.java    | 565 ----------------
 .../ignite/stream/jms11/MessageTransformer.java    |  41 --
 .../apache/ignite/stream/jms11/package-info.java   |  22 -
 .../ignite/stream/jms11/IgniteJmsStreamerTest.java | 708 ---------------------
 .../ignite/stream/jms11/TestTransformers.java      | 127 ----
 .../apache/ignite/stream/jms11/package-info.java   |  22 -
 .../cpp/common/include/ignite/ignite_error.h       |   6 +
 .../cpp/core/src/transactions/transactions.cpp     |   1 +
 .../platforms/cpp/thin-client-test/CMakeLists.txt  |   4 +-
 .../config/ssl/generate_certificates.sh            |  18 +-
 .../project/vs/thin-client-test.vcxproj            |   1 +
 .../platforms/cpp/thin-client-test/src/tx_test.cpp | 400 ++++++++++++
 modules/platforms/cpp/thin-client/CMakeLists.txt   |   2 +
 .../impl/thin/transactions/transactions_proxy.h    | 145 +++++
 .../include/ignite/thin/ignite_client.h            |  12 +
 .../include/ignite/thin/transactions/transaction.h | 100 +++
 .../ignite/thin/transactions/transaction_consts.h  | 119 ++++
 .../ignite/thin/transactions/transactions.h        | 130 ++++
 .../cpp/thin-client/project/vs/thin-client.vcxproj |   7 +
 .../cpp/thin-client/src/ignite_client.cpp          |   5 +
 .../src/impl/cache/cache_client_impl.cpp           |  86 +++
 .../thin-client/src/impl/cache/cache_client_impl.h |   8 +
 .../src/impl/cache/cache_client_proxy.cpp          |   2 -
 .../thin-client/src/impl/ignite_client_impl.cpp    |  13 +-
 .../cpp/thin-client/src/impl/ignite_client_impl.h  |  11 +
 .../platforms/cpp/thin-client/src/impl/message.cpp |   9 +-
 .../platforms/cpp/thin-client/src/impl/message.h   | 201 +++++-
 .../src/impl/transactions/transaction_impl.h       | 183 ++++++
 .../src/impl/transactions/transactions_impl.cpp    | 214 +++++++
 .../src/impl/transactions/transactions_impl.h      | 129 ++++
 .../src/impl/transactions/transactions_proxy.cpp   |  82 +++
 .../Apache.Ignite.Core.Tests.csproj                |   2 +
 .../Cache/CacheLocalActiveTransactionsTest.cs      | 208 ++++++
 .../Cache/CacheTransactionGridStopTest.cs          |  48 ++
 .../Cache/OptimisticTransactionTest.cs             |   9 +-
 .../Cache/PartitionLossTest.cs                     |  12 +-
 .../Apache.Ignite.Core.Tests/ExceptionsTest.cs     |   2 +-
 .../IgniteStartStopTest.cs                         |   2 +-
 .../Apache.Ignite.Core/Apache.Ignite.Core.csproj   |   2 +
 .../Common/IgniteIllegalStateException.cs          |  69 ++
 .../Apache.Ignite.Core/Impl/ExceptionUtils.cs      |   1 +
 .../Impl/Transactions/TransactionImpl.cs           |  12 +-
 .../Transactions/TransactionRollbackOnlyProxy.cs   | 261 ++++++++
 .../Impl/Transactions/TransactionsImpl.cs          |  55 +-
 .../Transactions/ITransactions.cs                  |  19 +-
 modules/platforms/python/pyignite/api/sql.py       |   5 +-
 .../python/pyignite/connection/__init__.py         |   4 +
 .../platforms/python/pyignite/connection/ssl.py    |  40 +-
 modules/platforms/python/tests/config/ssl.xml      |  58 ++
 .../platforms/python/tests/config/ssl/README.txt   |   3 +
 .../python/tests/config/ssl/client_full.pem        |  52 ++
 .../tests/config/ssl/client_with_pass_full.pem     |  54 ++
 .../platforms/python/tests/config/ssl/server.jks   | Bin 0 -> 2380 bytes
 .../platforms/python/tests/config/ssl/trust.jks    | Bin 0 -> 1346 bytes
 modules/platforms/python/tests/conftest.py         |  11 +-
 modules/platforms/python/tests/test_handshake.py   |   3 +-
 modules/platforms/python/tests/test_sql.py         |  30 +
 .../OverrideAnnotationOnTheSameLineCheck.java      | 100 ---
 .../ipfinder/zk/TcpDiscoveryZookeeperIpFinder.java |   5 +-
 .../zk/internal/ZookeeperDiscoveryImpl.java        |  41 +-
 parent/pom.xml                                     |  11 +-
 pom.xml                                            |   1 -
 289 files changed, 9317 insertions(+), 4445 deletions(-)

diff --cc 
modules/core/src/main/java/org/apache/ignite/internal/jdbc/thin/JdbcThinTcpIo.java
index fbabdf8,b8c5cd4..fc44067
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/jdbc/thin/JdbcThinTcpIo.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/jdbc/thin/JdbcThinTcpIo.java
@@@ -94,12 -94,9 +94,12 @@@ public class JdbcThinTcpIo 
      /** Version 2.8.0. */
      private static final ClientListenerProtocolVersion VER_2_8_0 = 
ClientListenerProtocolVersion.create(2, 8, 0);
  
-     /** Version 2.8.1. Adds features flags support. */
-     private static final ClientListenerProtocolVersion VER_2_8_1 = 
ClientListenerProtocolVersion.create(2, 8, 1);
+     /** Version 2.9.0. Adds user attributes support. Adds features flags 
support. */
+     private static final ClientListenerProtocolVersion VER_2_9_0 = 
ClientListenerProtocolVersion.create(2, 9, 0);
  
 +    /** Version 2.9.0. */
 +    private static final ClientListenerProtocolVersion VER_2_9_0 = 
ClientListenerProtocolVersion.create(2, 9, 0);
 +
      /** Current version. */
      private static final ClientListenerProtocolVersion CURRENT_VER = 
VER_2_9_0;
  
@@@ -307,14 -306,10 +309,13 @@@
                          SqlStateCode.CLIENT_CONNECTION_FAILED, e);
                  }
              }
-         }
  
-         if (ver.compareTo(VER_2_8_1) >= 0)
              
writer.writeByteArray(ThinProtocolFeature.featuresAsBytes(enabledFeatures()));
+         }
  
 +        if (ver.compareTo(VER_2_9_0) >= 0)
 +            writer.writeBoolean(connProps.isUseExperimentalQueryEngine());
 +
          if (!F.isEmpty(connProps.getUsername())) {
              assert ver.compareTo(VER_2_5_0) >= 0 : "Authentication is 
supported since 2.5";
  
diff --cc 
modules/core/src/main/java/org/apache/ignite/internal/processors/odbc/jdbc/JdbcConnectionContext.java
index 3ea5f35,0d9ea39..afa842d
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/odbc/jdbc/JdbcConnectionContext.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/odbc/jdbc/JdbcConnectionContext.java
@@@ -65,12 -65,9 +65,12 @@@ public class JdbcConnectionContext exte
      /** Version 2.8.0: adds query id in order to implement cancel feature, 
partition awareness support: IEP-23.*/
      static final ClientListenerProtocolVersion VER_2_8_0 = 
ClientListenerProtocolVersion.create(2, 8, 0);
  
-     /** Version 2.8.1: adds features flags support.*/
-     static final ClientListenerProtocolVersion VER_2_8_1 = 
ClientListenerProtocolVersion.create(2, 8, 1);
+     /** Version 2.9.0: adds user attributes, adds features flags support. */
+     static final ClientListenerProtocolVersion VER_2_9_0 = 
ClientListenerProtocolVersion.create(2, 9, 0);
  
 +    /** Version 2.9.0: adds experimental query engine support */
 +    static final ClientListenerProtocolVersion VER_2_9_0 = 
ClientListenerProtocolVersion.create(2, 9, 0);
 +
      /** Current version. */
      public static final ClientListenerProtocolVersion CURRENT_VER = VER_2_9_0;
  

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