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https://issues.apache.org/jira/browse/HDFS-16437?focusedWorklogId=720022&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-720022
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ASF GitHub Bot logged work on HDFS-16437:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 03/Feb/22 11:04
Start Date: 03/Feb/22 11:04
Worklog Time Spent: 10m
Work Description: singer-bin commented on a change in pull request #3926:
URL: https://github.com/apache/hadoop/pull/3926#discussion_r798451082
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewer.java
##########
@@ -1174,6 +1174,42 @@ public void testReverseXmlWrongLayoutVersion() throws
Throwable {
}
}
+ /**
+ * Tests that the ReverseXML processor doesn't accept XML files without the
SnapshotDiffSection.
+ */
+ @Test
+ public void testReverseXmlWithoutSnapshotDiffSection() throws Throwable {
+ File imageWSDS = new File(tempDir, "imageWithoutSnapshotDiffSection.xml");
+ PrintWriter writer = new PrintWriter(imageWSDS, "UTF-8");
+ try {
+ writer.println("<?xml version=\"1.0\"?>");
+ writer.println("<fsimage>");
+ writer.println("<version>");
+ writer.println("<layoutVersion>-67</layoutVersion>");
+ writer.println("<onDiskVersion>1</onDiskVersion>");
+
writer.println("<oivRevision>545bbef596c06af1c3c8dca1ce29096a64608478</oivRevision>");
+ writer.println("</version>");
+
writer.println("<FileUnderConstructionSection></FileUnderConstructionSection>");
+ writer.println("<ErasureCodingSection></ErasureCodingSection>");
+
writer.println("<INodeSection><lastInodeId>91488</lastInodeId><numInodes>0</numInodes></INodeSection>");
+
writer.println("<SecretManagerSection><currentId>90</currentId><tokenSequenceNumber>35</tokenSequenceNumber><numDelegationKeys>0</numDelegationKeys><numTokens>0</numTokens></SecretManagerSection>");
+ writer.println("<INodeReferenceSection></INodeReferenceSection>");
+
writer.println("<SnapshotSection><snapshotCounter>0</snapshotCounter><numSnapshots>0</numSnapshots></SnapshotSection>");
+
writer.println("<NameSection><namespaceId>326384987</namespaceId></NameSection>");
+
writer.println("<CacheManagerSection><nextDirectiveId>1</nextDirectiveId><numPools>0</numPools><numDirectives>0</numDirectives></CacheManagerSection>");
+ writer.println("<INodeDirectorySection></INodeDirectorySection>");
+ writer.println("</fsimage>");
+ } finally {
+ writer.close();
+ }
+ try {
+ OfflineImageReconstructor.run(imageWSDS.getAbsolutePath(),
Review comment:
I refer to the following methods in this class to prove that the
original logic is problematic, so I need to use my patch.
` @Test
public void testReverseXmlWrongLayoutVersion() throws Throwable {
File imageWrongVersion = new File(tempDir, "imageWrongVersion.xml");
PrintWriter writer = new PrintWriter(imageWrongVersion, "UTF-8");
try {
writer.println("<?xml version=\"1.0\"?>");
writer.println("<fsimage>");
writer.println("<version>");
writer.println(String.format("<layoutVersion>%d</layoutVersion>",
NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION + 1));
writer.println("<onDiskVersion>1</onDiskVersion>");
writer.println("<oivRevision>" +
"545bbef596c06af1c3c8dca1ce29096a64608478</oivRevision>");
writer.println("</version>");
writer.println("</fsimage>");
} finally {
writer.close();
}
try {
OfflineImageReconstructor.run(imageWrongVersion.getAbsolutePath(),
imageWrongVersion.getAbsolutePath() + ".out");
Assert.fail("Expected OfflineImageReconstructor to fail with " +
"version mismatch.");
} catch (Throwable t) {
GenericTestUtils.assertExceptionContains("Layout version mismatch.",
t);
}
}`
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Issue Time Tracking
-------------------
Worklog Id: (was: 720022)
Time Spent: 3h 10m (was: 3h)
> ReverseXML processor doesn't accept XML files without the SnapshotDiffSection.
> ------------------------------------------------------------------------------
>
> Key: HDFS-16437
> URL: https://issues.apache.org/jira/browse/HDFS-16437
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 3.1.1, 3.3.0
> Reporter: yanbin.zhang
> Priority: Critical
> Labels: pull-request-available
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> In a cluster environment without snapshot, if you want to convert back to
> fsimage through the generated xml, an error will be reported.
> {code:java}
> //代码占位符
> [test@test001 ~]$ hdfs oiv -p ReverseXML -i fsimage_0000000000000257220.xml
> -o fsimage_0000000000000257220
> OfflineImageReconstructor failed: FSImage XML ended prematurely, without
> including section(s) SnapshotDiffSection
> java.io.IOException: FSImage XML ended prematurely, without including
> section(s) SnapshotDiffSection
> at
> org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageReconstructor.processXml(OfflineImageReconstructor.java:1765)
> at
> org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageReconstructor.run(OfflineImageReconstructor.java:1842)
> at
> org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewerPB.run(OfflineImageViewerPB.java:211)
> at
> org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewerPB.main(OfflineImageViewerPB.java:149)
> 22/01/25 15:56:52 INFO util.ExitUtil: Exiting with status 1: ExitException
> {code}
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