Notes.ini Entry


Name:
    Debug_Enable_LZ1_Repair

Syntax
    Debug_Enable_LZ1_Repair=0 / 1

Applies to:
    Servers

Add-on:

    First Release:
      6.5.6

    Obsolete since:

      Category:
        Administration, Debug

      Default:
        None

      UI equivalent:
        None

      Description:
      The enhancement SPR# ASCR667FLH introduced additional functionality to the Compact task in Domino 6.5.6 and 7.0.1 that allows you to convert existing compressed attachments to either Huffman or LZ1 compression. The switch, -ZU, converts all compressed attachments to LZ1. The switch, -ZD, converts all compressed attachments to Huffman. The feature does not act on attachments that were not previously compressed and does not exist in Notes' Compact code.

      In order for the -ZU switch to work, the database property, "Use LZ1 compression for attachments", must be enabled. If the property is not enabled, then the -ZU switch has no effect. The -ZD switch converts to Huffman regardless of the property setting.

      For Domino 6.5.6 only, the following notes.ini parameter must be set in order for either switch to operate:

      DEBUG_ENABLE_LZ1_REPAIR=1

      The parameter can be set for the current Domino session by issuing the following command at the server console:

      Set Config DEBUG_ENABLE_LZ1_REPAIR=1

      To convert existing attachments from Huffman to LZ1 compression, perform the following steps:

      1. Enable the database property, "Use LZ1 compression for attachments", found in Database Properties --> Advanced (beanie) panel.

      2. From the server console, run the following command (without quotes):

      "load compact -ZU"

      To convert existing attachments from LZ1 to Huffman compression, from the server console, run the following command (without quotes): "load compact -ZD"

      NOTE: The conversion to Huffman compression will take place regardless of whether the "Use LZ1 compression for attachments" property is enabled or disabled.