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Posted to pr@cassandra.apache.org by GitBox <gi...@apache.org> on 2020/08/17 23:25:30 UTC

[GitHub] [cassandra] dcapwell commented on a change in pull request #714: CASSANDRA-16039 - FQL replay has option to ignore DDL statements

dcapwell commented on a change in pull request #714:
URL: https://github.com/apache/cassandra/pull/714#discussion_r471825387



##########
File path: test/distributed/org/apache/cassandra/distributed/test/FqlReplayDDLExclusionTest.java
##########
@@ -0,0 +1,104 @@
+/*
+ * 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.cassandra.distributed.test;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import com.datastax.driver.core.Session;
+import org.apache.cassandra.distributed.Cluster;
+import org.apache.cassandra.distributed.api.IInvokableInstance;
+import org.apache.cassandra.tools.ToolRunner;
+
+import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
+import static org.apache.cassandra.distributed.api.Feature.NATIVE_PROTOCOL;
+import static org.apache.cassandra.distributed.api.Feature.NETWORK;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+public class FqlReplayDDLExclusionTest extends TestBaseImpl
+{
+    @Rule
+    public final TemporaryFolder temporaryFolder = new TemporaryFolder();
+
+    @Test
+    public void test() throws Throwable
+    {
+        try (final Cluster cluster = init(builder().withNodes(1)
+                                                   .withConfig(updater -> updater.with(NETWORK, GOSSIP, NATIVE_PROTOCOL))
+                                                   .start()))
+        {
+            final IInvokableInstance node = cluster.get(1);
+
+            // using driver path is important because dtest API and query execution does not invoke code
+            // in Cassandra where events are propagated to logger
+            try (com.datastax.driver.core.Cluster c = com.datastax.driver.core.Cluster.builder().addContactPoint("127.0.0.1").build();
+                 Session s = c.connect())
+            {
+                s.execute("CREATE KEYSPACE fql_ks WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1};");
+
+                node.nodetool("enablefullquerylog", "--path", temporaryFolder.getRoot().getAbsolutePath());
+
+                s.execute("CREATE TABLE fql_ks.fql_table (id int primary key);");
+                s.execute("INSERT INTO fql_ks.fql_table (id) VALUES (1)");
+
+                node.nodetool("disablefullquerylog");
+            }
+
+            // here we are dropping and we expect that ddl replay will reconstruct it
+
+            node.executeInternal("DROP TABLE fql_ks.fql_table;");
+
+            final ToolRunner.Runners runners = new ToolRunner.Runners();
+
+            // without --replay-ddl-statements, the replay will fail on insert because underlying table is not there
+            final ToolRunner negativeRunner = runners.invokeClassAsTool("org.apache.cassandra.fqltool.FullQueryLogTool",
+                                                                        "replay",
+                                                                        "--keyspace", "fql_ks",
+                                                                        "--target", "127.0.0.1",
+                                                                        "--", temporaryFolder.getRoot().getAbsolutePath());
+
+            assertEquals(0, negativeRunner.getExitCode());
+
+            try
+            {
+                node.executeInternalWithResult("SELECT * from fql_ks.fql_table");
+                fail("This query should fail because we do not expect fql_ks.fql_table to be created!");
+            }
+            catch (final Exception ex)
+            {
+                assertTrue(ex.getMessage().contains("table fql_table does not exist"));
+            }
+
+            // here we replay with --replay-ddl-statements so table will be created and insert will succeed
+            final ToolRunner positiveRunner = runners.invokeClassAsTool("org.apache.cassandra.fqltool.FullQueryLogTool",
+                                                                        "replay",
+                                                                        "--keyspace", "fql_ks",
+                                                                        "--target", "127.0.0.1",
+                                                                        // important
+                                                                        "--replay-ddl-statements",
+                                                                        "--", temporaryFolder.getRoot().getAbsolutePath());
+
+            assertEquals(0, positiveRunner.getExitCode());
+            assertTrue(node.executeInternalWithResult("SELECT * from fql_ks.fql_table;").hasNext());

Review comment:
       can you also assert the rows?

##########
File path: test/distributed/org/apache/cassandra/distributed/test/FqlReplayDDLExclusionTest.java
##########
@@ -0,0 +1,104 @@
+/*
+ * 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.cassandra.distributed.test;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import com.datastax.driver.core.Session;
+import org.apache.cassandra.distributed.Cluster;
+import org.apache.cassandra.distributed.api.IInvokableInstance;
+import org.apache.cassandra.tools.ToolRunner;
+
+import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
+import static org.apache.cassandra.distributed.api.Feature.NATIVE_PROTOCOL;
+import static org.apache.cassandra.distributed.api.Feature.NETWORK;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+public class FqlReplayDDLExclusionTest extends TestBaseImpl
+{
+    @Rule
+    public final TemporaryFolder temporaryFolder = new TemporaryFolder();
+
+    @Test
+    public void test() throws Throwable
+    {
+        try (final Cluster cluster = init(builder().withNodes(1)
+                                                   .withConfig(updater -> updater.with(NETWORK, GOSSIP, NATIVE_PROTOCOL))
+                                                   .start()))
+        {
+            final IInvokableInstance node = cluster.get(1);
+
+            // using driver path is important because dtest API and query execution does not invoke code
+            // in Cassandra where events are propagated to logger
+            try (com.datastax.driver.core.Cluster c = com.datastax.driver.core.Cluster.builder().addContactPoint("127.0.0.1").build();
+                 Session s = c.connect())
+            {
+                s.execute("CREATE KEYSPACE fql_ks WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1};");
+
+                node.nodetool("enablefullquerylog", "--path", temporaryFolder.getRoot().getAbsolutePath());
+
+                s.execute("CREATE TABLE fql_ks.fql_table (id int primary key);");
+                s.execute("INSERT INTO fql_ks.fql_table (id) VALUES (1)");
+
+                node.nodetool("disablefullquerylog");
+            }
+
+            // here we are dropping and we expect that ddl replay will reconstruct it
+
+            node.executeInternal("DROP TABLE fql_ks.fql_table;");
+
+            final ToolRunner.Runners runners = new ToolRunner.Runners();
+
+            // without --replay-ddl-statements, the replay will fail on insert because underlying table is not there
+            final ToolRunner negativeRunner = runners.invokeClassAsTool("org.apache.cassandra.fqltool.FullQueryLogTool",
+                                                                        "replay",
+                                                                        "--keyspace", "fql_ks",
+                                                                        "--target", "127.0.0.1",
+                                                                        "--", temporaryFolder.getRoot().getAbsolutePath());
+
+            assertEquals(0, negativeRunner.getExitCode());

Review comment:
       if all queries fail we return 0?  Feels unexpected...

##########
File path: test/distributed/org/apache/cassandra/distributed/test/FqlReplayDDLExclusionTest.java
##########
@@ -0,0 +1,104 @@
+/*
+ * 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.cassandra.distributed.test;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import com.datastax.driver.core.Session;
+import org.apache.cassandra.distributed.Cluster;
+import org.apache.cassandra.distributed.api.IInvokableInstance;
+import org.apache.cassandra.tools.ToolRunner;
+
+import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
+import static org.apache.cassandra.distributed.api.Feature.NATIVE_PROTOCOL;
+import static org.apache.cassandra.distributed.api.Feature.NETWORK;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+public class FqlReplayDDLExclusionTest extends TestBaseImpl
+{
+    @Rule
+    public final TemporaryFolder temporaryFolder = new TemporaryFolder();
+
+    @Test
+    public void test() throws Throwable
+    {
+        try (final Cluster cluster = init(builder().withNodes(1)
+                                                   .withConfig(updater -> updater.with(NETWORK, GOSSIP, NATIVE_PROTOCOL))
+                                                   .start()))
+        {
+            final IInvokableInstance node = cluster.get(1);
+
+            // using driver path is important because dtest API and query execution does not invoke code
+            // in Cassandra where events are propagated to logger
+            try (com.datastax.driver.core.Cluster c = com.datastax.driver.core.Cluster.builder().addContactPoint("127.0.0.1").build();
+                 Session s = c.connect())
+            {
+                s.execute("CREATE KEYSPACE fql_ks WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1};");
+
+                node.nodetool("enablefullquerylog", "--path", temporaryFolder.getRoot().getAbsolutePath());
+
+                s.execute("CREATE TABLE fql_ks.fql_table (id int primary key);");
+                s.execute("INSERT INTO fql_ks.fql_table (id) VALUES (1)");
+
+                node.nodetool("disablefullquerylog");
+            }
+
+            // here we are dropping and we expect that ddl replay will reconstruct it
+
+            node.executeInternal("DROP TABLE fql_ks.fql_table;");
+
+            final ToolRunner.Runners runners = new ToolRunner.Runners();
+
+            // without --replay-ddl-statements, the replay will fail on insert because underlying table is not there
+            final ToolRunner negativeRunner = runners.invokeClassAsTool("org.apache.cassandra.fqltool.FullQueryLogTool",
+                                                                        "replay",
+                                                                        "--keyspace", "fql_ks",
+                                                                        "--target", "127.0.0.1",
+                                                                        "--", temporaryFolder.getRoot().getAbsolutePath());
+
+            assertEquals(0, negativeRunner.getExitCode());
+
+            try
+            {
+                node.executeInternalWithResult("SELECT * from fql_ks.fql_table");
+                fail("This query should fail because we do not expect fql_ks.fql_table to be created!");
+            }
+            catch (final Exception ex)
+            {
+                assertTrue(ex.getMessage().contains("table fql_table does not exist"));
+            }
+
+            // here we replay with --replay-ddl-statements so table will be created and insert will succeed
+            final ToolRunner positiveRunner = runners.invokeClassAsTool("org.apache.cassandra.fqltool.FullQueryLogTool",
+                                                                        "replay",
+                                                                        "--keyspace", "fql_ks",
+                                                                        "--target", "127.0.0.1",
+                                                                        // important
+                                                                        "--replay-ddl-statements",
+                                                                        "--", temporaryFolder.getRoot().getAbsolutePath());
+
+            assertEquals(0, positiveRunner.getExitCode());
+            assertTrue(node.executeInternalWithResult("SELECT * from fql_ks.fql_table;").hasNext());

Review comment:
       row utils will handle it for you, so just need to show that only a single row with the value of 1 is present.
   
   ```
   assertRows(node.executeWithResult("SELECT * from fql_ks.fql_table"),
                          QueryResults.builder().row(1).build());
   ```
   
   that will test that only one row exists and the only value is `1`




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