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https://issues.apache.org/jira/browse/IGNITE-23958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17907372#comment-17907372
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Mikhail Petrov commented on IGNITE-23958:
-----------------------------------------
[~alex_pl] Thank you for the review.
> Fix security context propagation for async transactional operations
> -------------------------------------------------------------------
>
> Key: IGNITE-23958
> URL: https://issues.apache.org/jira/browse/IGNITE-23958
> Project: Ignite
> Issue Type: Bug
> Reporter: Mikhail Petrov
> Assignee: Mikhail Petrov
> Priority: Blocker
> Labels: ise
> Fix For: 2.17
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Reproducer:
> {code:java}
> /*
> * Licensed to the Apache Software Foundation (ASF) under one or more
> * contributor license agreements. See the NOTICE file distributed with
> * this work for additional information regarding copyright ownership.
> * The ASF licenses this file to You under the Apache License, Version 2.0
> * (the "License"); you may not use this file except in compliance with
> * the License. You may obtain a copy of the License at
> *
> * http://www.apache.org/licenses/LICENSE-2.0
> *
> * Unless required by applicable law or agreed to in writing, software
> * distributed under the License is distributed on an "AS IS" BASIS,
> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> * See the License for the specific language governing permissions and
> * limitations under the License.
> */
> package org.apache.ignite;
> import java.security.Permissions;
> import java.util.concurrent.CountDownLatch;
> import java.util.concurrent.TimeUnit;
> import org.apache.ignite.client.IgniteClient;
> import org.apache.ignite.client.IgniteClientFuture;
> import org.apache.ignite.configuration.CacheConfiguration;
> import org.apache.ignite.configuration.ClientConfiguration;
> import org.apache.ignite.configuration.ClientConnectorConfiguration;
> import org.apache.ignite.configuration.DataRegionConfiguration;
> import org.apache.ignite.configuration.DataStorageConfiguration;
> import org.apache.ignite.configuration.IgniteConfiguration;
> import org.apache.ignite.configuration.ThinClientConfiguration;
> import org.apache.ignite.internal.IgniteEx;
> import org.apache.ignite.internal.IgniteInternalFuture;
> import org.apache.ignite.internal.events.DiscoveryCustomEvent;
> import
> org.apache.ignite.internal.management.snapshot.SnapshotCreateCommandArg;
> import org.apache.ignite.internal.management.snapshot.SnapshotCreateTask;
> import org.apache.ignite.internal.managers.discovery.DiscoveryCustomMessage;
> import
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture;
> import
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.PartitionsExchangeAware;
> import
> org.apache.ignite.internal.processors.cache.persistence.snapshot.SnapshotDiscoveryMessage;
> import org.apache.ignite.internal.processors.security.impl.TestSecurityData;
> import
> org.apache.ignite.internal.processors.security.impl.TestSecurityPluginProvider;
> import org.apache.ignite.internal.util.typedef.internal.U;
> import org.apache.ignite.internal.visor.VisorTaskArgument;
> import org.apache.ignite.internal.visor.VisorTaskResult;
> import org.apache.ignite.plugin.security.SecurityPermissionSet;
> import org.apache.ignite.testframework.GridTestUtils;
> import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
> import org.junit.Test;
> import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL;
> import static org.apache.ignite.cluster.ClusterState.ACTIVE;
> import static
> org.apache.ignite.internal.events.DiscoveryCustomEvent.EVT_DISCOVERY_CUSTOM_EVT;
> import static
> org.apache.ignite.plugin.security.SecurityPermission.ADMIN_CLUSTER_STATE;
> import static
> org.apache.ignite.plugin.security.SecurityPermission.ADMIN_SNAPSHOT;
> import static
> org.apache.ignite.plugin.security.SecurityPermission.CACHE_CREATE;
> import static org.apache.ignite.plugin.security.SecurityPermission.CACHE_PUT;
> import static org.apache.ignite.plugin.security.SecurityPermission.CACHE_READ;
> import static
> org.apache.ignite.plugin.security.SecurityPermission.JOIN_AS_SERVER;
> import static
> org.apache.ignite.plugin.security.SecurityPermissionSetBuilder.create;
> import static
> org.apache.ignite.plugin.security.SecurityPermissionSetBuilder.systemPermissions;
> /** */
> public class TransactionsHangingTest extends GridCommonAbstractTest {
> /** {@inheritDoc} */
> @Override protected IgniteConfiguration getConfiguration(String
> igniteInstanceName) throws Exception {
> IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName);
> cfg.setDataStorageConfiguration(new DataStorageConfiguration()
> .setDefaultDataRegionConfiguration(new DataRegionConfiguration()
> .setPersistenceEnabled(true)));
> cfg.setClientConnectorConfiguration(new ClientConnectorConfiguration()
> .setThreadPoolSize(2) // first thread is occupied by snapshot
> operation, the second is designated to perform cache operations.
> .setThinClientConfiguration(new ThinClientConfiguration()
> .setMaxActiveComputeTasksPerConnection(1)));
> cfg.setPluginProviders(new TestSecurityPluginProvider(
> igniteInstanceName,
> "",
> create()
> .defaultAllowAll(false)
> .appendSystemPermissions(JOIN_AS_SERVER, ADMIN_CLUSTER_STATE)
> .appendCachePermissions(DEFAULT_CACHE_NAME, CACHE_CREATE)
> .build(),
> null,
> false,
> userData("admin-snapshot", systemPermissions(ADMIN_SNAPSHOT)),
> userData("client", create()
> .defaultAllowAll(false)
> .appendCachePermissions(DEFAULT_CACHE_NAME, CACHE_READ,
> CACHE_PUT)
> .build())
> ));
> return cfg;
> }
> /** {@inheritDoc} */
> @Override protected void beforeTest() throws Exception {
> super.beforeTest();
> cleanPersistenceDir();
> }
> /** {@inheritDoc} */
> @Override protected void afterTest() throws Exception {
> super.afterTest();
> stopAllGrids();
> cleanPersistenceDir();
> }
> /** */
> @Test
> public void test() throws Exception {
> IgniteEx ignite = startGrid(0);
> ignite.cluster().state(ACTIVE);
> ignite.createCache(new
> CacheConfiguration<>().setName(DEFAULT_CACHE_NAME).setAtomicityMode(TRANSACTIONAL));
> CountDownLatch snapshotBlockedLatch = new CountDownLatch(1);
> CountDownLatch snapshotUnblockedLatch = new CountDownLatch(1);
>
> ignite.context().cache().context().exchange().registerExchangeAwareComponent(new
> PartitionsExchangeAware() {
> /** {@inheritDoc} */
> @Override public void
> onInitAfterTopologyLock(GridDhtPartitionsExchangeFuture fut) {
> if (fut.firstEvent().type() != EVT_DISCOVERY_CUSTOM_EVT)
> return;
> DiscoveryCustomMessage msg =
> ((DiscoveryCustomEvent)fut.firstEvent()).customMessage();
> assertNotNull(msg);
> if (msg instanceof SnapshotDiscoveryMessage) {
> snapshotBlockedLatch.countDown();
> try {
> snapshotUnblockedLatch.await(getTestTimeout(),
> TimeUnit.MILLISECONDS);
> }
> catch (InterruptedException e) {
> throw new IgniteException(e);
> }
> }
> }
> });
> try (
> IgniteClient snpAdmin = Ignition.startClient(new
> ClientConfiguration().setAddresses("127.0.0.1:10800").setUserName("admin-snapshot").setUserPassword(""));
> IgniteClient cli = Ignition.startClient(new
> ClientConfiguration().setAddresses("127.0.0.1:10800").setUserName("client").setUserPassword(""))
> ) {
> SnapshotCreateCommandArg arg = new SnapshotCreateCommandArg();
> arg.snapshotName("test_snapshot");
> arg.sync(true);
> IgniteClientFuture<VisorTaskResult<String>> snpFut =
> snpAdmin.compute().<VisorTaskArgument<?>,
> VisorTaskResult<String>>executeAsync2(
> SnapshotCreateTask.class.getName(),
> new VisorTaskArgument<>(
> grid(0).localNode().id(),
> arg,
> false)
> );
> assertTrue(snapshotBlockedLatch.await(getTestTimeout(),
> TimeUnit.MILLISECONDS));
> IgniteInternalFuture<Object> putFut0 = GridTestUtils.runAsync(()
> -> cli.cache(DEFAULT_CACHE_NAME).put(0, 0));
> IgniteInternalFuture<Object> putFut1 = GridTestUtils.runAsync(()
> -> cli.cache(DEFAULT_CACHE_NAME).put(1, 1));
> U.sleep(1000); // Wait for tx requests chaining.
> snapshotUnblockedLatch.countDown();
> snpFut.get(getTestTimeout(), TimeUnit.MILLISECONDS);
> putFut0.get(getTestTimeout());
> putFut1.get(getTestTimeout()); // Will hang.
> }
> }
> /** */
> private TestSecurityData userData(String login, SecurityPermissionSet
> perms) {
> return new TestSecurityData(
> login,
> "",
> perms,
> new Permissions()
> );
> }
> }
> {code}
> Code execution steps that lead to the hanging:
> 1. Start of the snapshot operation initiated by "administrator user account"
> causes PME to start.
> 2. Thin client sends tx-1, which is blocked until PME is completed.
> 3. Lets consider that thread-1 was used to handle tx-1 request. After
> https://issues.apache.org/jira/browse/IGNITE-21183 threads of thin client
> thread pool are not longer blocked until the end of transactions.
> Transactions requests are handled asynchronously. See suspend/resume of
> transacitons. This allows thread-1 to handle another tx request.
> 4. Thin client sends tx-2 which is handled by the thread-1.
> 5. Since this thread did not complete the previous tx-1, tx-2 chains itself
> with tx-1 future and starts waiting its completion. See
> org/apache/ignite/internal/processors/cache/GridCacheAdapter.java:3856
> 6. PME caused by the snapshot finishes. tx-1 future is notified to proceed by
> the PME thread. The crucial thing here is that tx-1 proceeds its execution in
> PME thread that is associated with the user that started snapshot. By the end
> of tx-1 the tx-2 starts its execution. Also in thread that is associated with
> the user that started snapshot.
> 7. If snapshot administrator user was not granted permissions for cache
> operations - tx-2 fails. And future chain described in clause 5 becomes
> broken.
> It leads to the situation when all new transaction handled by thread-1 will
> chain itself with previous transaction executed by this thread. But thy will
> never complete because the future chain is broken.
> We must fix exceptions handling during tx operations chaining and manually
> restore security context while executing transactional operation from the
> future listener.
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