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Posted to common-issues@hadoop.apache.org by GitBox <gi...@apache.org> on 2020/08/13 09:09:23 UTC

[GitHub] [hadoop] abhishekdas99 opened a new pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

abhishekdas99 opened a new pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225


   


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[GitHub] [hadoop] abhishekdas99 commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
abhishekdas99 commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-693078970


   > The latest patch looks good to me. There is one findbug popped up. Could you please take a look at it. Otherwise I am +1
   
   The findbug issue is not part of the new change. I fixed the issue.


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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-691664117


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | +0 :ok: |  reexec  |   1m 12s |  Docker mode activated.  |
   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files found.  |
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   ||| _ trunk Compile Tests _ |
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   ||| _ Patch Compile Tests _ |
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   | +1 :green_heart: |  mvninstall  |   1m 58s |  the patch passed  |
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   | +1 :green_heart: |  javac  |  18m 50s |  the patch passed  |
   | +1 :green_heart: |  compile  |  16m 50s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
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   | -1 :x: |  findbugs  |   2m 24s |  hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)  |
   ||| _ Other Tests _ |
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   |  |   | 290m 55s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | FindBugs | module:hadoop-common-project/hadoop-common |
   |  |  Write to static field org.apache.hadoop.fs.viewfs.ViewFs.showMountLinksAsSymlinks from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:[line 230] |
   | Failed junit tests | hadoop.hdfs.server.namenode.TestAddStripedBlockInFBR |
   |   | hadoop.hdfs.TestDFSStripedOutputStreamWithRandomECPolicy |
   |   | hadoop.hdfs.TestGetFileChecksum |
   |   | hadoop.hdfs.TestFileChecksum |
   |   | hadoop.hdfs.TestErasureCodingPolicyWithSnapshotWithRandomECPolicy |
   |   | hadoop.hdfs.TestDecommissionWithStriped |
   |   | hadoop.hdfs.TestSetrepDecreasing |
   |   | hadoop.hdfs.TestFileChecksumCompositeCrc |
   
   
   | Subsystem | Report/Notes |
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   | Max. process+thread count | 5284 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/4/console |
   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-869944467


   :broken_heart: **-1 overall**
   
   
   
   
   
   
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   |||| _ Prechecks _ |
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   | -1 :x: |  mvninstall  |   1m  7s | [/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt) |  hadoop-hdfs in the patch failed.  |
   | -1 :x: |  compile  |   0m 59s | [/patch-compile-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-compile-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt) |  root in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.  |
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   | -1 :x: |  mvnsite  |   1m  9s | [/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt) |  hadoop-hdfs in the patch failed.  |
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   |||| _ Other Tests _ |
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   |  |   | 127m  3s |  |  |
   
   
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   | GITHUB PR | https://github.com/apache/hadoop/pull/2225 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell |
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   | Max. process+thread count | 542 (vs. ulimit of 5500) |
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   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-673512049


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
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   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files found.  |
   | +1 :green_heart: |  @author  |   0m  0s |  The patch does not contain any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  The patch appears to include 1 new or modified test files.  |
   ||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |   2m 59s |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  24m 45s |  trunk passed  |
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   | +1 :green_heart: |  javadoc  |   1m 42s |  trunk passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m 12s |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +0 :ok: |  spotbugs  |   3m  9s |  Used deprecated FindBugs config; considering switching to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   5m 22s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 26s |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   1m 57s |  the patch passed  |
   | +1 :green_heart: |  compile  |  18m 40s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javac  |  18m 40s |  the patch passed  |
   | +1 :green_heart: |  compile  |  16m 38s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  javac  |  16m 38s |  the patch passed  |
   | -0 :warning: |  checkstyle  |   2m 35s |  root: The patch generated 5 new + 52 unchanged - 1 fixed = 57 total (was 53)  |
   | +1 :green_heart: |  mvnsite  |   2m 54s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace issues.  |
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   | +1 :green_heart: |  javadoc  |   1m 39s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m 11s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | -1 :x: |  findbugs  |   2m 24s |  hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)  |
   ||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   9m 56s |  hadoop-common in the patch passed.  |
   | -1 :x: |  unit  | 119m 23s |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   1m  0s |  The patch does not generate ASF License warnings.  |
   |  |   | 298m 44s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | FindBugs | module:hadoop-common-project/hadoop-common |
   |  |  Write to static field org.apache.hadoop.fs.viewfs.ViewFs.showMountLinksAsSymlinks from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:[line 230] |
   | Failed junit tests | hadoop.hdfs.server.namenode.TestNameNodeMXBean |
   |   | hadoop.hdfs.TestRollingUpgrade |
   |   | hadoop.hdfs.server.aliasmap.TestSecureAliasMap |
   |   | hadoop.hdfs.TestStripedFileAppend |
   |   | hadoop.fs.contract.hdfs.TestHDFSContractMultipartUploader |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/Dockerfile |
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   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle |
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   | Max. process+thread count | 3566 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
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   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
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[GitHub] [hadoop] jojochuang commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
jojochuang commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-720712953


   There was a compilation error. Please check. (I triggered a rebuild to make sure it's not infra related)


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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-693121106


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
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   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files found.  |
   | +1 :green_heart: |  @author  |   0m  0s |  The patch does not contain any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  The patch appears to include 1 new or modified test files.  |
   ||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |   3m 21s |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  27m 22s |  trunk passed  |
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   | +1 :green_heart: |  shadedclient  |  20m 32s |  branch has no errors when building and testing our client artifacts.  |
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   | +1 :green_heart: |  findbugs  |   5m 43s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 28s |  Maven dependency ordering for patch  |
   | -1 :x: |  mvninstall  |   0m 32s |  hadoop-common in the patch failed.  |
   | -1 :x: |  mvninstall  |   1m  4s |  hadoop-hdfs in the patch failed.  |
   | -1 :x: |  compile  |   1m  4s |  root in the patch failed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1.  |
   | -1 :x: |  javac  |   1m  4s |  root in the patch failed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1.  |
   | -1 :x: |  compile  |   0m 56s |  root in the patch failed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01.  |
   | -1 :x: |  javac  |   0m 56s |  root in the patch failed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01.  |
   | +1 :green_heart: |  checkstyle  |   2m 25s |  root: The patch generated 0 new + 52 unchanged - 1 fixed = 52 total (was 53)  |
   | -1 :x: |  mvnsite  |   0m 37s |  hadoop-common in the patch failed.  |
   | -1 :x: |  mvnsite  |   1m  7s |  hadoop-hdfs in the patch failed.  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace issues.  |
   | -1 :x: |  shadedclient  |   0m 41s |  patch has errors when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m  2s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   2m 46s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | -1 :x: |  findbugs  |   0m 32s |  hadoop-common in the patch failed.  |
   | -1 :x: |  findbugs  |   1m  6s |  hadoop-hdfs in the patch failed.  |
   ||| _ Other Tests _ |
   | -1 :x: |  unit  |   0m 33s |  hadoop-common in the patch failed.  |
   | -1 :x: |  unit  |   1m  6s |  hadoop-hdfs in the patch failed.  |
   | +1 :green_heart: |  asflicense  |   0m 26s |  The patch does not generate ASF License warnings.  |
   |  |   | 121m 31s |   |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/Dockerfile |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2225 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle |
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   | compile | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-compile-root-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1.txt |
   | javac | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-compile-root-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1.txt |
   | compile | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-compile-root-jdkPrivateBuild-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01.txt |
   | javac | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-compile-root-jdkPrivateBuild-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01.txt |
   | mvnsite | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-mvnsite-hadoop-common-project_hadoop-common.txt |
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   | findbugs | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-findbugs-hadoop-common-project_hadoop-common.txt |
   | findbugs | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-findbugs-hadoop-hdfs-project_hadoop-hdfs.txt |
   | unit | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt |
   | unit | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/7/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt |
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   | Max. process+thread count | 414 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
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   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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[GitHub] [hadoop] abhishekdas99 commented on a change in pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
abhishekdas99 commented on a change in pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#discussion_r487493294



##########
File path: hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/viewfs/TestViewFsOverloadSchemeWithHdfsScheme.java
##########
@@ -0,0 +1,309 @@
+/**
+ * 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.hadoop.fs.viewfs;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+import org.apache.hadoop.fs.FileContext;
+import org.apache.hadoop.fs.FileContextTestHelper;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FsConstants;
+import org.apache.hadoop.fs.Hdfs;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.RawLocalFileSystem;
+import org.apache.hadoop.fs.RemoteIterator;
+import org.apache.hadoop.fs.UnsupportedFileSystemException;
+import org.apache.hadoop.hdfs.DistributedFileSystem;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.test.PathUtils;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;;
+
+
+/**
+ * Tests ViewFileSystemOverloadScheme with configured mount links.
+ */
+public class TestViewFsOverloadSchemeWithHdfsScheme {
+  private static final String FS_IMPL_PATTERN_KEY =
+      "fs.AbstractFileSystem.%s.impl";
+  private static final String HDFS_SCHEME = "hdfs";
+  private Configuration conf = null;
+  private MiniDFSCluster cluster = null;
+  private URI defaultFSURI;
+  private File localTargetDir;
+  private static final String TEST_ROOT_DIR = PathUtils
+      .getTestDirName(TestViewFsOverloadSchemeWithHdfsScheme.class);
+  private static final String HDFS_USER_FOLDER = "/HDFSUser";
+  private static final String LOCAL_FOLDER = "/local";
+
+  /**
+   * Sets up the configurations and starts the MiniDFSCluster.
+   */
+  @Before

Review comment:
       Fixed.

##########
File path: hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/viewfs/TestViewFsOverloadSchemeWithHdfsScheme.java
##########
@@ -0,0 +1,309 @@
+/**
+ * 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.hadoop.fs.viewfs;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+import org.apache.hadoop.fs.FileContext;
+import org.apache.hadoop.fs.FileContextTestHelper;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FsConstants;
+import org.apache.hadoop.fs.Hdfs;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.RawLocalFileSystem;
+import org.apache.hadoop.fs.RemoteIterator;
+import org.apache.hadoop.fs.UnsupportedFileSystemException;
+import org.apache.hadoop.hdfs.DistributedFileSystem;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.test.PathUtils;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;;
+
+
+/**

Review comment:
       Fixed.




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[GitHub] [hadoop] abhishekdas99 edited a comment on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
abhishekdas99 edited a comment on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-693078970


   > The latest patch looks good to me. There is one findbug popped up. Could you please take a look at it. Otherwise I am +1
   
   The findbug issue is not part of the new change. I have fixed the issue.


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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-691668958


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | +0 :ok: |  reexec  |   1m 41s |  Docker mode activated.  |
   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files found.  |
   | +1 :green_heart: |  @author  |   0m  0s |  The patch does not contain any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  The patch appears to include 1 new or modified test files.  |
   ||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |   3m 41s |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  30m 17s |  trunk passed  |
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   | +1 :green_heart: |  javadoc  |   3m 34s |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +0 :ok: |  spotbugs  |   4m  3s |  Used deprecated FindBugs config; considering switching to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   6m 49s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 29s |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   2m 37s |  the patch passed  |
   | +1 :green_heart: |  compile  |  25m 24s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | -1 :x: |  javac  |  25m 24s |  root-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 generated 2 new + 2055 unchanged - 2 fixed = 2057 total (was 2057)  |
   | +1 :green_heart: |  compile  |  23m 40s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | -1 :x: |  javac  |  23m 40s |  root-jdkPrivateBuild-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 generated 2 new + 1949 unchanged - 2 fixed = 1951 total (was 1951)  |
   | +1 :green_heart: |  checkstyle  |   3m 36s |  root: The patch generated 0 new + 52 unchanged - 1 fixed = 52 total (was 53)  |
   | +1 :green_heart: |  mvnsite  |   3m 44s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  1s |  The patch has no whitespace issues.  |
   | +1 :green_heart: |  shadedclient  |  19m 31s |  patch has no errors when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 40s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m 11s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | -1 :x: |  findbugs  |   2m 22s |  hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)  |
   ||| _ Other Tests _ |
   | -1 :x: |  unit  |   9m 30s |  hadoop-common in the patch passed.  |
   | -1 :x: |  unit  | 116m 37s |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   0m 56s |  The patch does not generate ASF License warnings.  |
   |  |   | 336m  6s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | FindBugs | module:hadoop-common-project/hadoop-common |
   |  |  Write to static field org.apache.hadoop.fs.viewfs.ViewFs.showMountLinksAsSymlinks from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:[line 230] |
   | Failed junit tests | hadoop.security.TestRaceWhenRelogin |
   |   | hadoop.hdfs.TestFileChecksum |
   |   | hadoop.hdfs.server.namenode.ha.TestFailureToReadEdits |
   |   | hadoop.hdfs.server.blockmanagement.TestRBWBlockInvalidation |
   |   | hadoop.hdfs.server.namenode.ha.TestObserverNode |
   |   | hadoop.hdfs.TestFileChecksumCompositeCrc |
   |   | hadoop.hdfs.server.namenode.ha.TestHAAppend |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
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   | javac | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/5/artifact/out/diff-compile-javac-root-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1.txt |
   | javac | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/5/artifact/out/diff-compile-javac-root-jdkPrivateBuild-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01.txt |
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[GitHub] [hadoop] abhishekdas99 commented on a change in pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
abhishekdas99 commented on a change in pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#discussion_r487493380



##########
File path: hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFsOverloadScheme.java
##########
@@ -0,0 +1,218 @@
+/**
+ * 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.hadoop.fs.viewfs;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.net.URI;
+
+import java.net.URISyntaxException;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.AbstractFileSystem;
+import org.apache.hadoop.fs.FsConstants;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.UnsupportedFileSystemException;
+
+import static org.apache.hadoop.fs.viewfs.Constants.CONFIG_VIEWFS_IGNORE_PORT_IN_MOUNT_TABLE_NAME;
+
+/******************************************************************************
+ * This class is AbstractFileSystem implementation corresponding to
+ * ViewFileSystemOverloadScheme. This class is extended from the ViewFs
+ * for the overloaded scheme file system. Mount link configurations and
+ * in-memory mount table building behaviors are inherited from ViewFs.
+ * Unlike ViewFs scheme (viewfs://), the users would be able to use any scheme.
+ *
+ * To use this class, the following configurations need to be added in
+ * core-site.xml file.
+ * 1) fs.AbstractFileSystem.<scheme>.impl
+ *    = org.apache.hadoop.fs.viewfs.ViewFsOverloadScheme
+ * 2) fs.viewfs.overload.scheme.target.abstract.<scheme>.impl
+ *    = <hadoop compatible file system implementation class name for the
+ *    <scheme>"
+ *
+ * Here <scheme> can be any scheme, but with that scheme there should be a
+ * hadoop compatible file system available. Second configuration value should
+ * be the respective scheme's file system implementation class.
+ * Example: if scheme is configured with "hdfs", then the 2nd configuration
+ * class name will be org.apache.hadoop.hdfs.Hdfs.
+ *
+ * Use Case 1:
+ * ===========
+ * If users want some of their existing cluster (hdfs://Cluster)
+ * data to mount with other hdfs and object store clusters(hdfs://NN1,
+ * o3fs://bucket1.volume1/, s3a://bucket1/)
+ *
+ * fs.viewfs.mounttable.Cluster.link./user = hdfs://NN1/user
+ * fs.viewfs.mounttable.Cluster.link./data = o3fs://bucket1.volume1/data
+ * fs.viewfs.mounttable.Cluster.link./backup = s3a://bucket1/backup/
+ *
+ * Op1: Create file hdfs://Cluster/user/fileA will go to hdfs://NN1/user/fileA
+ * Op2: Create file hdfs://Cluster/data/datafile will go to
+ *      o3fs://bucket1.volume1/data/datafile
+ * Op3: Create file hdfs://Cluster/backup/data.zip will go to
+ *      s3a://bucket1/backup/data.zip
+ *
+ * Use Case 2:
+ * ===========
+ * If users want some of their existing cluster (s3a://bucketA/)
+ * data to mount with other hdfs and object store clusters
+ * (hdfs://NN1, o3fs://bucket1.volume1/)
+ *
+ * fs.viewfs.mounttable.bucketA.link./user = hdfs://NN1/user
+ * fs.viewfs.mounttable.bucketA.link./data = o3fs://bucket1.volume1/data
+ * fs.viewfs.mounttable.bucketA.link./salesDB = s3a://bucketA/salesDB/
+ *
+ * Op1: Create file s3a://bucketA/user/fileA will go to hdfs://NN1/user/fileA
+ * Op2: Create file s3a://bucketA/data/datafile will go to
+ *      o3fs://bucket1.volume1/data/datafile
+ * Op3: Create file s3a://bucketA/salesDB/dbfile will go to
+ *      s3a://bucketA/salesDB/dbfile
+ *
+ * Note:
+ * (1) In ViewFileSystemOverloadScheme, by default the mount links will be
+ * represented as non-symlinks. If you want to change this behavior, please see
+ * {@link ViewFileSystem#listStatus(Path)}
+ * (2) In ViewFileSystemOverloadScheme, only the initialized uri's hostname will
+ * be considered as the mount table name. When the passed uri has hostname:port,
+ * it will simply ignore the port number and only hostname will be considered as
+ * the mount table name.
+ * (3) If there are no mount links configured with the initializing uri's
+ * hostname as the mount table name, then it will automatically consider the
+ * current uri as fallback( ex: fs.viewfs.mounttable.<mycluster>.linkFallBack)
+ * target fs uri.
+ *****************************************************************************/
+
+public class ViewFsOverloadScheme extends ViewFs {
+  private URI myUri;
+  private static final Class<?>[] URI_CONFIG_ARGS =
+      new Class[]{URI.class, Configuration.class};
+
+  public ViewFsOverloadScheme() throws IOException, URISyntaxException {
+    super(new Configuration());
+  }
+
+  public ViewFsOverloadScheme(final URI theUri, final Configuration conf)
+      throws IOException, URISyntaxException {
+    super(theUri, conf);
+  }
+
+  @Override
+  void loadMountTable(URI theUri, Configuration conf,
+      boolean initingUriAsFallbackOnNoMounts)
+      throws URISyntaxException, IOException {
+    myUri = theUri;
+    /* The default value to false in ViewFSOverloadScheme */
+    conf.setBoolean(Constants.CONFIG_VIEWFS_MOUNT_LINKS_AS_SYMLINKS,
+        conf.getBoolean(Constants.CONFIG_VIEWFS_MOUNT_LINKS_AS_SYMLINKS,
+            false));
+    /* the default value to true in ViewFSOverloadScheme */
+    conf.setBoolean(CONFIG_VIEWFS_IGNORE_PORT_IN_MOUNT_TABLE_NAME,
+        conf.getBoolean(Constants.CONFIG_VIEWFS_IGNORE_PORT_IN_MOUNT_TABLE_NAME,
+            true));
+    loadMountTableConfigs(theUri, conf);
+    super.loadMountTable(theUri, conf, initingUriAsFallbackOnNoMounts);
+  }
+
+  protected void loadMountTableConfigs(URI uri, Configuration conf)
+      throws IOException {
+    String mountTableConfigPath =
+        conf.get(Constants.CONFIG_VIEWFS_MOUNTTABLE_PATH);
+    if (null != mountTableConfigPath) {
+      MountTableConfigLoader loader = new HCFSMountTableConfigLoader();
+      loader.load(mountTableConfigPath, conf);
+    } else {
+      // TODO: Should we fail here.?
+      if (LOG.isDebugEnabled()) {
+        LOG.debug(
+            "Missing configuration for fs.viewfs.mounttable.path. Proceeding"

Review comment:
       Fixed. Also changed ViewFileSystemOverloadScheme.java




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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-691664562


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
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   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files found.  |
   | +1 :green_heart: |  @author  |   0m  0s |  The patch does not contain any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  The patch appears to include 1 new or modified test files.  |
   ||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |   3m 39s |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  31m 21s |  trunk passed  |
   | +1 :green_heart: |  compile  |  22m 14s |  trunk passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  compile  |  18m  6s |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  checkstyle  |   2m 47s |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   2m 57s |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  20m 31s |  branch has no errors when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 35s |  trunk passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m  9s |  trunk passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +0 :ok: |  spotbugs  |   3m 23s |  Used deprecated FindBugs config; considering switching to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   5m 35s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 26s |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   2m  7s |  the patch passed  |
   | +1 :green_heart: |  compile  |  20m 18s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javac  |  20m 18s |  the patch passed  |
   | +1 :green_heart: |  compile  |  17m 21s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  javac  |  17m 21s |  the patch passed  |
   | +1 :green_heart: |  checkstyle  |   2m 46s |  root: The patch generated 0 new + 52 unchanged - 1 fixed = 52 total (was 53)  |
   | +1 :green_heart: |  mvnsite  |   2m 57s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace issues.  |
   | +1 :green_heart: |  shadedclient  |  14m 36s |  patch has no errors when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 39s |  the patch passed with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m 16s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | -1 :x: |  findbugs  |   2m 22s |  hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)  |
   ||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   9m 37s |  hadoop-common in the patch passed.  |
   | -1 :x: |  unit  |  96m 33s |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   1m  3s |  The patch does not generate ASF License warnings.  |
   |  |   | 291m 10s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | FindBugs | module:hadoop-common-project/hadoop-common |
   |  |  Write to static field org.apache.hadoop.fs.viewfs.ViewFs.showMountLinksAsSymlinks from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:[line 230] |
   | Failed junit tests | hadoop.hdfs.TestFileChecksum |
   |   | hadoop.hdfs.TestFileChecksumCompositeCrc |
   |   | hadoop.hdfs.server.sps.TestExternalStoragePolicySatisfier |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/6/artifact/out/Dockerfile |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2225 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle |
   | uname | Linux ddad9c477363 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
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   | findbugs | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/6/artifact/out/new-findbugs-hadoop-common-project_hadoop-common.html |
   | unit | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/6/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt |
   |  Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/6/testReport/ |
   | Max. process+thread count | 3941 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/6/console |
   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
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[GitHub] [hadoop] umamaheswararao commented on a change in pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
umamaheswararao commented on a change in pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#discussion_r484551422



##########
File path: hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/viewfs/TestViewFsOverloadSchemeWithHdfsScheme.java
##########
@@ -0,0 +1,309 @@
+/**
+ * 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.hadoop.fs.viewfs;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+import org.apache.hadoop.fs.FileContext;
+import org.apache.hadoop.fs.FileContextTestHelper;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FsConstants;
+import org.apache.hadoop.fs.Hdfs;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.RawLocalFileSystem;
+import org.apache.hadoop.fs.RemoteIterator;
+import org.apache.hadoop.fs.UnsupportedFileSystemException;
+import org.apache.hadoop.hdfs.DistributedFileSystem;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.test.PathUtils;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;;
+
+
+/**

Review comment:
       ViewFileSystemOverloadScheme --> ViewFsOverloadScheme

##########
File path: hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFsOverloadScheme.java
##########
@@ -0,0 +1,218 @@
+/**
+ * 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.hadoop.fs.viewfs;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.net.URI;
+
+import java.net.URISyntaxException;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.AbstractFileSystem;
+import org.apache.hadoop.fs.FsConstants;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.UnsupportedFileSystemException;
+
+import static org.apache.hadoop.fs.viewfs.Constants.CONFIG_VIEWFS_IGNORE_PORT_IN_MOUNT_TABLE_NAME;
+
+/******************************************************************************
+ * This class is AbstractFileSystem implementation corresponding to
+ * ViewFileSystemOverloadScheme. This class is extended from the ViewFs
+ * for the overloaded scheme file system. Mount link configurations and
+ * in-memory mount table building behaviors are inherited from ViewFs.
+ * Unlike ViewFs scheme (viewfs://), the users would be able to use any scheme.
+ *
+ * To use this class, the following configurations need to be added in
+ * core-site.xml file.
+ * 1) fs.AbstractFileSystem.<scheme>.impl
+ *    = org.apache.hadoop.fs.viewfs.ViewFsOverloadScheme
+ * 2) fs.viewfs.overload.scheme.target.abstract.<scheme>.impl
+ *    = <hadoop compatible file system implementation class name for the
+ *    <scheme>"
+ *
+ * Here <scheme> can be any scheme, but with that scheme there should be a
+ * hadoop compatible file system available. Second configuration value should
+ * be the respective scheme's file system implementation class.
+ * Example: if scheme is configured with "hdfs", then the 2nd configuration
+ * class name will be org.apache.hadoop.hdfs.Hdfs.
+ *
+ * Use Case 1:
+ * ===========
+ * If users want some of their existing cluster (hdfs://Cluster)
+ * data to mount with other hdfs and object store clusters(hdfs://NN1,
+ * o3fs://bucket1.volume1/, s3a://bucket1/)
+ *
+ * fs.viewfs.mounttable.Cluster.link./user = hdfs://NN1/user
+ * fs.viewfs.mounttable.Cluster.link./data = o3fs://bucket1.volume1/data
+ * fs.viewfs.mounttable.Cluster.link./backup = s3a://bucket1/backup/
+ *
+ * Op1: Create file hdfs://Cluster/user/fileA will go to hdfs://NN1/user/fileA
+ * Op2: Create file hdfs://Cluster/data/datafile will go to
+ *      o3fs://bucket1.volume1/data/datafile
+ * Op3: Create file hdfs://Cluster/backup/data.zip will go to
+ *      s3a://bucket1/backup/data.zip
+ *
+ * Use Case 2:
+ * ===========
+ * If users want some of their existing cluster (s3a://bucketA/)
+ * data to mount with other hdfs and object store clusters
+ * (hdfs://NN1, o3fs://bucket1.volume1/)
+ *
+ * fs.viewfs.mounttable.bucketA.link./user = hdfs://NN1/user
+ * fs.viewfs.mounttable.bucketA.link./data = o3fs://bucket1.volume1/data
+ * fs.viewfs.mounttable.bucketA.link./salesDB = s3a://bucketA/salesDB/
+ *
+ * Op1: Create file s3a://bucketA/user/fileA will go to hdfs://NN1/user/fileA
+ * Op2: Create file s3a://bucketA/data/datafile will go to
+ *      o3fs://bucket1.volume1/data/datafile
+ * Op3: Create file s3a://bucketA/salesDB/dbfile will go to
+ *      s3a://bucketA/salesDB/dbfile
+ *
+ * Note:
+ * (1) In ViewFileSystemOverloadScheme, by default the mount links will be
+ * represented as non-symlinks. If you want to change this behavior, please see
+ * {@link ViewFileSystem#listStatus(Path)}
+ * (2) In ViewFileSystemOverloadScheme, only the initialized uri's hostname will
+ * be considered as the mount table name. When the passed uri has hostname:port,
+ * it will simply ignore the port number and only hostname will be considered as
+ * the mount table name.
+ * (3) If there are no mount links configured with the initializing uri's
+ * hostname as the mount table name, then it will automatically consider the
+ * current uri as fallback( ex: fs.viewfs.mounttable.<mycluster>.linkFallBack)
+ * target fs uri.
+ *****************************************************************************/
+
+public class ViewFsOverloadScheme extends ViewFs {
+  private URI myUri;
+  private static final Class<?>[] URI_CONFIG_ARGS =
+      new Class[]{URI.class, Configuration.class};
+
+  public ViewFsOverloadScheme() throws IOException, URISyntaxException {
+    super(new Configuration());
+  }
+
+  public ViewFsOverloadScheme(final URI theUri, final Configuration conf)
+      throws IOException, URISyntaxException {
+    super(theUri, conf);
+  }
+
+  @Override
+  void loadMountTable(URI theUri, Configuration conf,
+      boolean initingUriAsFallbackOnNoMounts)
+      throws URISyntaxException, IOException {
+    myUri = theUri;
+    /* The default value to false in ViewFSOverloadScheme */
+    conf.setBoolean(Constants.CONFIG_VIEWFS_MOUNT_LINKS_AS_SYMLINKS,
+        conf.getBoolean(Constants.CONFIG_VIEWFS_MOUNT_LINKS_AS_SYMLINKS,
+            false));
+    /* the default value to true in ViewFSOverloadScheme */
+    conf.setBoolean(CONFIG_VIEWFS_IGNORE_PORT_IN_MOUNT_TABLE_NAME,
+        conf.getBoolean(Constants.CONFIG_VIEWFS_IGNORE_PORT_IN_MOUNT_TABLE_NAME,
+            true));
+    loadMountTableConfigs(theUri, conf);
+    super.loadMountTable(theUri, conf, initingUriAsFallbackOnNoMounts);
+  }
+
+  protected void loadMountTableConfigs(URI uri, Configuration conf)
+      throws IOException {
+    String mountTableConfigPath =
+        conf.get(Constants.CONFIG_VIEWFS_MOUNTTABLE_PATH);
+    if (null != mountTableConfigPath) {
+      MountTableConfigLoader loader = new HCFSMountTableConfigLoader();
+      loader.load(mountTableConfigPath, conf);
+    } else {
+      // TODO: Should we fail here.?
+      if (LOG.isDebugEnabled()) {
+        LOG.debug(
+            "Missing configuration for fs.viewfs.mounttable.path. Proceeding"

Review comment:
       avaialable -> available. ( Its might be my mistake, same typo may be there in Original class as well :-) )

##########
File path: hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/viewfs/TestViewFsOverloadSchemeWithHdfsScheme.java
##########
@@ -0,0 +1,309 @@
+/**
+ * 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.hadoop.fs.viewfs;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+import org.apache.hadoop.fs.FileContext;
+import org.apache.hadoop.fs.FileContextTestHelper;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FsConstants;
+import org.apache.hadoop.fs.Hdfs;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.RawLocalFileSystem;
+import org.apache.hadoop.fs.RemoteIterator;
+import org.apache.hadoop.fs.UnsupportedFileSystemException;
+import org.apache.hadoop.hdfs.DistributedFileSystem;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.test.PathUtils;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;;
+
+
+/**
+ * Tests ViewFileSystemOverloadScheme with configured mount links.
+ */
+public class TestViewFsOverloadSchemeWithHdfsScheme {
+  private static final String FS_IMPL_PATTERN_KEY =
+      "fs.AbstractFileSystem.%s.impl";
+  private static final String HDFS_SCHEME = "hdfs";
+  private Configuration conf = null;
+  private MiniDFSCluster cluster = null;
+  private URI defaultFSURI;
+  private File localTargetDir;
+  private static final String TEST_ROOT_DIR = PathUtils
+      .getTestDirName(TestViewFsOverloadSchemeWithHdfsScheme.class);
+  private static final String HDFS_USER_FOLDER = "/HDFSUser";
+  private static final String LOCAL_FOLDER = "/local";
+
+  /**
+   * Sets up the configurations and starts the MiniDFSCluster.
+   */
+  @Before

Review comment:
       I remember I made this tests to starts cluster only once. That will improve tests time, You may want to have a look at corresponding ViewFileSystemOverloadScheme test class now.




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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-720786035


   :broken_heart: **-1 overall**
   
   
   
   
   
   
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   |||| _ Other Tests _ |
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[GitHub] [hadoop] umamaheswararao commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
umamaheswararao commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-693028476


   The latest patch looks good to me. There is one findbug popped up. Could you please take a look at it. Otherwise I am +1


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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-683249639


   :broken_heart: **-1 overall**
   
   
   
   
   
   
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   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files found.  |
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   | +0 :ok: |  mvndep  |   3m 20s |  Maven dependency ordering for branch  |
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   | +1 :green_heart: |  findbugs  |   5m 25s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 26s |  Maven dependency ordering for patch  |
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   | +1 :green_heart: |  checkstyle  |   2m 36s |  root: The patch generated 0 new + 52 unchanged - 1 fixed = 52 total (was 53)  |
   | +1 :green_heart: |  mvnsite  |   2m 57s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace issues.  |
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   | +1 :green_heart: |  javadoc  |   3m  7s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | -1 :x: |  findbugs  |   2m 25s |  hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)  |
   ||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   9m 52s |  hadoop-common in the patch passed.  |
   | -1 :x: |  unit  | 133m 14s |  hadoop-hdfs in the patch passed.  |
   | -1 :x: |  asflicense  |   1m  5s |  The patch generated 3 ASF License warnings.  |
   |  |   | 320m 30s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | FindBugs | module:hadoop-common-project/hadoop-common |
   |  |  Write to static field org.apache.hadoop.fs.viewfs.ViewFs.showMountLinksAsSymlinks from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:[line 230] |
   | Failed junit tests | hadoop.hdfs.TestFileChecksumCompositeCrc |
   |   | hadoop.hdfs.TestFileChecksum |
   |   | hadoop.hdfs.server.datanode.TestDataNodeUUID |
   
   
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   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/3/artifact/out/Dockerfile |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2225 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle |
   | uname | Linux 31ddbbfad45a 4.15.0-65-generic #74-Ubuntu SMP Tue Sep 17 17:06:04 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
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   | Max. process+thread count | 4277 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/3/console |
   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-683245885


   :broken_heart: **-1 overall**
   
   
   
   
   
   
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   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files found.  |
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   | +1 :green_heart: |  mvnsite  |   2m 45s |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  21m 36s |  branch has no errors when building and testing our client artifacts.  |
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   | +1 :green_heart: |  findbugs  |   5m 25s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 23s |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   1m 58s |  the patch passed  |
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   | +1 :green_heart: |  javac  |  19m 56s |  the patch passed  |
   | +1 :green_heart: |  compile  |  17m 18s |  the patch passed with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  javac  |  17m 18s |  the patch passed  |
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   | -1 :x: |  findbugs  |   2m 21s |  hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)  |
   ||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   9m 19s |  hadoop-common in the patch passed.  |
   | -1 :x: |  unit  |  91m 47s |  hadoop-hdfs in the patch passed.  |
   | -1 :x: |  asflicense  |   0m 53s |  The patch generated 3 ASF License warnings.  |
   |  |   | 278m 22s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | FindBugs | module:hadoop-common-project/hadoop-common |
   |  |  Write to static field org.apache.hadoop.fs.viewfs.ViewFs.showMountLinksAsSymlinks from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:from instance method new org.apache.hadoop.fs.viewfs.ViewFs(URI, Configuration)  At ViewFs.java:[line 230] |
   | Failed junit tests | hadoop.hdfs.TestFileChecksum |
   |   | hadoop.hdfs.server.namenode.TestNameNodeRetryCacheMetrics |
   |   | hadoop.hdfs.TestFileChecksumCompositeCrc |
   |   | hadoop.hdfs.server.sps.TestExternalStoragePolicySatisfier |
   
   
   | Subsystem | Report/Notes |
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   | findbugs | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/2/artifact/out/new-findbugs-hadoop-common-project_hadoop-common.html |
   | unit | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/2/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt |
   |  Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/2/testReport/ |
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   | Max. process+thread count | 3233 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
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   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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[GitHub] [hadoop] hadoop-yetus commented on pull request #2225: HDFS-15329. Provide FileContext based ViewFSOverloadScheme implementation

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on pull request #2225:
URL: https://github.com/apache/hadoop/pull/2225#issuecomment-869944467


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 35s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  1s |  |  No case conflicting files found.  |
   | +0 :ok: |  codespell  |   0m  0s |  |  codespell was not available.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to include 1 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |  13m  7s |  |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  20m 10s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  20m 56s |  |  trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04  |
   | +1 :green_heart: |  compile  |  18m 15s |  |  trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10  |
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   | +1 :green_heart: |  mvnsite  |   3m 12s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   2m 18s |  |  trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04  |
   | +1 :green_heart: |  javadoc  |   3m 26s |  |  trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10  |
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   | +1 :green_heart: |  shadedclient  |  16m 27s |  |  branch has no errors when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 29s |  |  Maven dependency ordering for patch  |
   | -1 :x: |  mvninstall  |   0m 32s | [/patch-mvninstall-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-mvninstall-hadoop-common-project_hadoop-common.txt) |  hadoop-common in the patch failed.  |
   | -1 :x: |  mvninstall  |   1m  7s | [/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt) |  hadoop-hdfs in the patch failed.  |
   | -1 :x: |  compile  |   0m 59s | [/patch-compile-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-compile-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt) |  root in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.  |
   | -1 :x: |  javac  |   0m 59s | [/patch-compile-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-compile-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt) |  root in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.  |
   | -1 :x: |  compile  |   0m 54s | [/patch-compile-root-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-compile-root-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt) |  root in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.  |
   | -1 :x: |  javac  |   0m 54s | [/patch-compile-root-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-compile-root-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt) |  root in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks issues.  |
   | +1 :green_heart: |  checkstyle  |   3m 24s |  |  root: The patch generated 0 new + 51 unchanged - 1 fixed = 51 total (was 52)  |
   | -1 :x: |  mvnsite  |   0m 38s | [/patch-mvnsite-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-mvnsite-hadoop-common-project_hadoop-common.txt) |  hadoop-common in the patch failed.  |
   | -1 :x: |  mvnsite  |   1m  9s | [/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt) |  hadoop-hdfs in the patch failed.  |
   | -1 :x: |  javadoc  |   0m 44s | [/patch-javadoc-hadoop-common-project_hadoop-common-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-javadoc-hadoop-common-project_hadoop-common-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt) |  hadoop-common in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.  |
   | +1 :green_heart: |  javadoc  |   2m 37s |  |  the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10  |
   | -1 :x: |  spotbugs  |   0m 34s | [/patch-spotbugs-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-spotbugs-hadoop-common-project_hadoop-common.txt) |  hadoop-common in the patch failed.  |
   | -1 :x: |  spotbugs  |   1m  8s | [/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt) |  hadoop-hdfs in the patch failed.  |
   | -1 :x: |  shadedclient  |  17m  3s |  |  patch has errors when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | -1 :x: |  unit  |   0m 35s | [/patch-unit-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt) |  hadoop-common in the patch failed.  |
   | -1 :x: |  unit  |   1m  9s | [/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt) |  hadoop-hdfs in the patch failed.  |
   | +1 :green_heart: |  asflicense  |   0m 29s |  |  The patch does not generate ASF License warnings.  |
   |  |   | 127m  3s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/artifact/out/Dockerfile |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2225 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell |
   | uname | Linux d532a0a7092b 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / c54d8c99cbd7ebb89bb75ef8f00184b0412470c2 |
   | Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
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   |  Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/testReport/ |
   | Max. process+thread count | 542 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2225/1/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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