[HDFS-12569] Unset EC policy logs empty payload in edit log

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha4
• Fix Version/s: 3.0.0
• Component/s: erasure-coding
• Target Version/s: 3.0.0
• Assignee: Lei (Eddy) Xu
• Reporter: Lei (Eddy) Xu
• Created: 29/Sep/17 23:45
• Updated: 02/Oct/17 22:56
• Resolved: 02/Oct/17 22:36

Description

The edit log generated by hdfs ec -unsetPolicy generates an OP_REMOVE_XATTR entry in edit logs, but the payload like xattr namespace / name / vaue are missing:

  <RECORD>
    <OPCODE>OP_REMOVE_XATTR</OPCODE>
    <DATA>
      <TXID>420481</TXID>
      <SRC>/</SRC>
      <RPC_CLIENTID>b098e758-9d7f-48b7-aa91-80ca52133b09</RPC_CLIENTID>
      <RPC_CALLID>0</RPC_CALLID>
    </DATA>
  </RECORD>

As a result, when Active NN restarts, or the Standby NN replay edits, this op has not effect.

Issue Links

• is related to: HDFS-12575 Improve test coverage for EC related edit logs ops