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  1. Couchbase Server
  2. MB-23107

As file size grows the overhead of opening a forestdb file increase

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    Description

      I have a backup file which is 400GB and opening it (fdb_open) after clearing the file system cache takes 30 seconds. Without clearing the cache it takes 7-10 seconds.

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          Opening for tracking purposes right now.

          mikew Mike Wiederhold [X] (Inactive) added a comment - Opening for tracking purposes right now.

          Jung-Sang,

          Can you take a look at this issue as the first thing tomorrow? You can get the backup file from Mike for debugging.

          Thnaks!

          chiyoung Chiyoung Seo (Inactive) added a comment - Jung-Sang, Can you take a look at this issue as the first thing tomorrow? You can get the backup file from Mike for debugging. Thnaks!

          We will have to generate a backup file for you if you need one since I don't have one ready right now. I can talk to Pavel about doing this if needed.

          mikew Mike Wiederhold [X] (Inactive) added a comment - We will have to generate a backup file for you if you need one since I don't have one ready right now. I can talk to Pavel about doing this if needed.

          Yes, it will be very helpful if you can provide a backup file that can reproduce the issue. Seems to me it can be probably caused by scanning & reconstructing WAL during file open.

          jung-sang Jung-Sang Ahn (Inactive) added a comment - Yes, it will be very helpful if you can provide a backup file that can reproduce the issue. Seems to me it can be probably caused by scanning & reconstructing WAL during file open.

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            jung-sang Jung-Sang Ahn (Inactive)
            mikew Mike Wiederhold [X] (Inactive)
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