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Removing a HostLocate this document in the navigation structure

Use

You can use the TREX admin tool (standalone) to remove a host from a TREX landscape temporarily or permanently.

Removing a Host Temporarily

  1. Go to the Start of the navigation path Landscape Next navigation step Configuration End of the navigation path window in the TREX admin tool (standalone).

  2. Remove the Master Index/Queue Server indicator for the host that you want to remove from your TREX landscape temporarily.

  3. Choose Check and then Deploy to save your change.

  4. In the Landscape Reorg window, go to the Plan tab page.

  5. Choose Start Reorg to start the required reorganization of your TREX landscape.

    The reorganization process distributes indexes that are located on the removed host to other hosts. When the reorganization is finished, there are no more indexes on the host in question.

    Note

    If you select the Split/Merge Indexes checkbox before performing the reorganization, the system not only reorganizes the indexes but also distributes splits the logical indexes again. During this type of reorganization, the system also recalculates the number of parts of which a logical index consists.

    Caution

    Note that this reorganization can cause a complete reindexing process that can last as long as the initial indexing run. During this period, the system cannot perform indexing runs and searching is limited.

Removing a Host Permanently

  1. Stop TREX on the host that you want to remove from your landscape.

    The host is highlighted in red as soon as you have stopped it.

  2. Go to the Start of the navigation path Landscape Next navigation step Configuration End of the navigation path window in the TREX admin tool (standalone).

  3. Select the host that you want to remove permanently.

  4. Choose Remove Host.

    You are asked whether you want the indexes located on this host to be moved automatically.

  5. Choose Move if you want this to happen.

    The system removes all the indexes from the host in question.

    Note

    After permanently removing a host, do not simply carry out an organization. For performance reasons, you should completely redistribute the indexes. To do so, select the Split/Merge Index checkbox in the Landscape Reorg window of the TREX admin tool (standalone) and then start the reorganization. During this type of reorganization, the system also recalculates the number of parts of which a logical index consists.

    Caution

    Note that this reorganization can cause a complete reindexing process that can last as long as the initial indexing run. During this period, the system cannot perform indexing runs and searching is limited.