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Posted to common-commits@hadoop.apache.org by om...@apache.org on 2022/11/15 23:06:50 UTC

[hadoop] branch trunk updated: HDFS-16836: StandbyCheckpointer shouldn't trigger rollback fs image after RU is finalized (#5135)

This is an automated email from the ASF dual-hosted git repository.

omalley pushed a commit to branch trunk
in repository https://gitbox.apache.org/repos/asf/hadoop.git


The following commit(s) were added to refs/heads/trunk by this push:
     new cd929457c93 HDFS-16836: StandbyCheckpointer shouldn't trigger rollback fs image after RU is finalized (#5135)
cd929457c93 is described below

commit cd929457c93f4c2460909ab65d2d3cc4e2f817ab
Author: Lei Yang <nk...@gmail.com>
AuthorDate: Tue Nov 15 15:06:37 2022 -0800

    HDFS-16836: StandbyCheckpointer shouldn't trigger rollback fs image after RU is finalized (#5135)
    
    Co-authored-by: Lei Yang <le...@linkedin.com>
---
 .../hdfs/server/namenode/FSEditLogLoader.java      |  1 +
 .../org/apache/hadoop/hdfs/TestRollingUpgrade.java | 36 ++++++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
index a065fe6c0cf..efbc3b20c60 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
@@ -912,6 +912,7 @@ public class FSEditLogLoader {
       fsNamesys.getFSImage().updateStorageVersion();
       fsNamesys.getFSImage().renameCheckpoint(NameNodeFile.IMAGE_ROLLBACK,
           NameNodeFile.IMAGE);
+      fsNamesys.setNeedRollbackFsImage(false);
       break;
     }
     case OP_ADD_CACHE_DIRECTIVE: {
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestRollingUpgrade.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestRollingUpgrade.java
index 6e7014c42eb..bb5da24a682 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestRollingUpgrade.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestRollingUpgrade.java
@@ -33,6 +33,9 @@ import javax.management.ObjectName;
 import javax.management.ReflectionException;
 import javax.management.openmbean.CompositeDataSupport;
 
+import org.apache.hadoop.hdfs.protocol.HdfsConstants;
+import org.apache.hadoop.hdfs.server.namenode.NameNode;
+import org.apache.hadoop.hdfs.server.namenode.ha.HATestUtil;
 import org.junit.Rule;
 import org.junit.rules.TemporaryFolder;
 import org.slf4j.Logger;
@@ -720,6 +723,39 @@ public class TestRollingUpgrade {
     }
   }
 
+  @Test
+  public void testEditLogTailerRollingUpgrade() throws IOException, InterruptedException {
+    Configuration conf = new Configuration();
+    conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
+    conf.setInt(DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_PERIOD_KEY, 1);
+
+    HAUtil.setAllowStandbyReads(conf, true);
+
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
+        .nnTopology(MiniDFSNNTopology.simpleHATopology())
+        .numDataNodes(0)
+        .build();
+    cluster.waitActive();
+
+    cluster.transitionToActive(0);
+
+    NameNode nn1 = cluster.getNameNode(0);
+    NameNode nn2 = cluster.getNameNode(1);
+    try {
+      // RU start should trigger rollback image in standbycheckpointer
+      nn1.getRpcServer().rollingUpgrade(HdfsConstants.RollingUpgradeAction.PREPARE);
+      HATestUtil.waitForStandbyToCatchUp(nn1, nn2);
+      Assert.assertTrue(nn2.getNamesystem().isNeedRollbackFsImage());
+
+      // RU finalize should reset rollback image flag in standbycheckpointer
+      nn1.getRpcServer().rollingUpgrade(HdfsConstants.RollingUpgradeAction.FINALIZE);
+      HATestUtil.waitForStandbyToCatchUp(nn1, nn2);
+      Assert.assertFalse(nn2.getNamesystem().isNeedRollbackFsImage());
+    } finally {
+      cluster.shutdown();
+    }
+  }
+
   /**
    * In non-HA setup, after rolling upgrade prepare, the Secondary NN should
    * still be able to do checkpoint


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