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  1. Drivers
  2. DRIVERS-21

Unpin member when read preference changes

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    • Type: Icon: Improvement Improvement
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
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    • Component/s: None
    • Labels:
    • $i18n.getText("admin.common.words.hide")
      Key Status/Resolution FixVersion
      PYTHON-431 Done 2.5
      JAVA-692 Done 3.0.0
      RUBY-475 Done 1.8.4
      PHP-709 Done Planning Bucket A
      PERL-280 Done
      CDRIVER-239 Done 0.90.0
      CSHARP-838 Won't Fix
      NODE-74 Won't Fix
      $i18n.getText("admin.common.words.show")
      #scriptField, #scriptField *{ border: 1px solid black; } #scriptField{ border-collapse: collapse; } #scriptField td { text-align: center; /* Center-align text in table cells */ } #scriptField td.key { text-align: left; /* Left-align text in the Key column */ } #scriptField a { text-decoration: none; /* Remove underlines from links */ border: none; /* Remove border from links */ } /* Add green background color to cells with FixVersion */ #scriptField td.hasFixVersion { background-color: #00FF00; /* Green color code */ } /* Center-align the first row headers */ #scriptField th { text-align: center; } Key Status/Resolution FixVersion PYTHON-431 Done 2.5 JAVA-692 Done 3.0.0 RUBY-475 Done 1.8.4 PHP-709 Done Planning Bucket A PERL-280 Done CDRIVER-239 Done 0.90.0 CSHARP-838 Won't Fix NODE-74 Won't Fix

      The Read Preferences spec siad that a thread's first read in a request pins it to a replica-set member, and stays pinned until the request ends or the thread reads with a preference that the pinned member cannot satisfy. THE CHANGE: When a driver pins a thread to a member, it remembers the read preference used for this read – the mode, tags, and secondaryAcceptableLatencyMS. If the next read has a different mode, tags, or secondaryAcceptableLatencyMS, unpin the member and start the member-selection process from scratch.

      NOTE: All primary operations within the request must use the same socket, even if interleaved with operations on secondaries. (For simplicity, drivers may also use a single socket on each secondary, but this is not required.)

            Assignee:
            barrie Barrie Segal
            Reporter:
            jesse@mongodb.com A. Jesse Jiryu Davis
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              Created:
              Updated:
              Resolved: