[HDFS-9308] Add truncateMeta() and deleteMeta() to MiniDFSCluster

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: test
• Assignee: Tony Wu
• Reporter: Tony Wu
• Created: 26/Oct/15 20:53
• Updated: 12/May/16 18:16
• Resolved: 03/Nov/15 02:07

Description

HDFS-9188 introduced corruptMeta() method to make corrupting the metadata file filesystem agnostic. There should also be a truncateMeta() and deleteMeta() method in MiniDFSCluster to allow truncation of metadata files on DataNodes without writing code that's specific to underling file system. FsDatasetTestUtils#truncateMeta() is already implemented by HDFS-9188 and cam be exposed easily in MiniDFSCluster.

This will be useful for tests such as TestLeaseRecovery#testBlockRecoveryWithLessMetafile and TestCrcCorruption#testCrcCorruption.