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  4. LDF file Size is so increased

LDF file Size is so increased

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  • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

    What the recovery mode of your DB?

    Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

    A Offline
    A Offline
    Azam Niaz Ch
    wrote on last edited by
    #3

    i have set it to full.

    Kornfeld Eliyahu PeterK 1 Reply Last reply
    0
    • A Azam Niaz Ch

      i have set it to full.

      Kornfeld Eliyahu PeterK Offline
      Kornfeld Eliyahu PeterK Offline
      Kornfeld Eliyahu Peter
      wrote on last edited by
      #4

      How have you done the log backup? (Remember that even full database backup will not truncate log if you are using full recovery mode...Only direct log backup will work here)

      Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

      "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

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      • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

        How have you done the log backup? (Remember that even full database backup will not truncate log if you are using full recovery mode...Only direct log backup will work here)

        Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

        A Offline
        A Offline
        Azam Niaz Ch
        wrote on last edited by
        #5

        Dear I take full back of DB after that i take only logs backup then try to shrink the log file but failed to reduce the LDF size.

        Kornfeld Eliyahu PeterK 1 Reply Last reply
        0
        • A Azam Niaz Ch

          Dear I take full back of DB after that i take only logs backup then try to shrink the log file but failed to reduce the LDF size.

          Kornfeld Eliyahu PeterK Offline
          Kornfeld Eliyahu PeterK Offline
          Kornfeld Eliyahu Peter
          wrote on last edited by
          #6

          Can you share the commands you run?

          Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

          "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

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          • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

            Can you share the commands you run?

            Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

            A Offline
            A Offline
            Azam Niaz Ch
            wrote on last edited by
            #7

            I do with MS management studio.

            Kornfeld Eliyahu PeterK 1 Reply Last reply
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            • A Azam Niaz Ch

              I do with MS management studio.

              Kornfeld Eliyahu PeterK Offline
              Kornfeld Eliyahu PeterK Offline
              Kornfeld Eliyahu Peter
              wrote on last edited by
              #8

              OK. Explain how! (when you are using the Management Studio you have a 'Script' button at the top of the backup window. Pressing that button will give you the script Management Studio will run - copy that here!) (I ask you this because these kind of things are working so probably you miss something and I try to figure out what)

              Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

              "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

              A 1 Reply Last reply
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              • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

                OK. Explain how! (when you are using the Management Studio you have a 'Script' button at the top of the backup window. Pressing that button will give you the script Management Studio will run - copy that here!) (I ask you this because these kind of things are working so probably you miss something and I try to figure out what)

                Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                A Offline
                A Offline
                Azam Niaz Ch
                wrote on last edited by
                #9

                Please see the generated script USE [TEST_APP] GO DBCC SHRINKFILE (N'TEST_APP_Log' , 0, TRUNCATEONLY) GO I just want to truncate the logs.

                Kornfeld Eliyahu PeterK 1 Reply Last reply
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                • A Azam Niaz Ch

                  Please see the generated script USE [TEST_APP] GO DBCC SHRINKFILE (N'TEST_APP_Log' , 0, TRUNCATEONLY) GO I just want to truncate the logs.

                  Kornfeld Eliyahu PeterK Offline
                  Kornfeld Eliyahu PeterK Offline
                  Kornfeld Eliyahu Peter
                  wrote on last edited by
                  #10

                  TRUNCATE_ONLY option does not reorganize the file but try to free the empty block at the end of the log file...It is possible that without page-reorganization there is no actual space to free... Instead of TRUNCATE_ONLY use tager_size...

                  DBCC SHRINKFILE('your-log-file', 200) -- for 200 MB

                  It will take much more time as SQL will try to reorganize pages inside the log file and drop them if marked properly by the backup process...

                  Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                  "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

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                  • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

                    TRUNCATE_ONLY option does not reorganize the file but try to free the empty block at the end of the log file...It is possible that without page-reorganization there is no actual space to free... Instead of TRUNCATE_ONLY use tager_size...

                    DBCC SHRINKFILE('your-log-file', 200) -- for 200 MB

                    It will take much more time as SQL will try to reorganize pages inside the log file and drop them if marked properly by the backup process...

                    Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                    A Offline
                    A Offline
                    Azam Niaz Ch
                    wrote on last edited by
                    #11

                    I just need some help to configure the DB as when i take bake up of LDF then DB must truncate the logs and LDF again in 2mb size. is it possible ? i am doing the same exercise on another DB but on this i am failed.

                    Kornfeld Eliyahu PeterK 1 Reply Last reply
                    0
                    • A Azam Niaz Ch

                      I just need some help to configure the DB as when i take bake up of LDF then DB must truncate the logs and LDF again in 2mb size. is it possible ? i am doing the same exercise on another DB but on this i am failed.

                      Kornfeld Eliyahu PeterK Offline
                      Kornfeld Eliyahu PeterK Offline
                      Kornfeld Eliyahu Peter
                      wrote on last edited by
                      #12

                      Not with your model...

                      Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                      "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

                      A 1 Reply Last reply
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                      • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

                        Not with your model...

                        Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                        A Offline
                        A Offline
                        Azam Niaz Ch
                        wrote on last edited by
                        #13

                        Can i change the model ? how ?

                        Kornfeld Eliyahu PeterK 1 Reply Last reply
                        0
                        • A Azam Niaz Ch

                          Can i change the model ? how ?

                          Kornfeld Eliyahu PeterK Offline
                          Kornfeld Eliyahu PeterK Offline
                          Kornfeld Eliyahu Peter
                          wrote on last edited by
                          #14

                          ALTER DATABASE [your-database-name] SET RECOVERY SIMPLE;

                          Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                          "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

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                          • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

                            ALTER DATABASE [your-database-name] SET RECOVERY SIMPLE;

                            Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                            A Offline
                            A Offline
                            Azam Niaz Ch
                            wrote on last edited by
                            #15

                            my issue is still with me. on recovery model simple nothing happend ... can you suggest me some more options??

                            C G 2 Replies Last reply
                            0
                            • A Azam Niaz Ch

                              my issue is still with me. on recovery model simple nothing happend ... can you suggest me some more options??

                              C Offline
                              C Offline
                              Corporal Agarn
                              wrote on last edited by
                              #16

                              After changing to simple try shrinking the log file

                              Mongo: Mongo only pawn... in game of life.

                              1 Reply Last reply
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                              • A Azam Niaz Ch

                                my issue is still with me. on recovery model simple nothing happend ... can you suggest me some more options??

                                G Offline
                                G Offline
                                GuyThiebaut
                                wrote on last edited by
                                #17

                                Are you using replication?

                                “That which can be asserted without evidence, can be dismissed without evidence.”

                                ― Christopher Hitchens

                                A 1 Reply Last reply
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                                • G GuyThiebaut

                                  Are you using replication?

                                  “That which can be asserted without evidence, can be dismissed without evidence.”

                                  ― Christopher Hitchens

                                  A Offline
                                  A Offline
                                  Azam Niaz Ch
                                  wrote on last edited by
                                  #18

                                  No i am not using replication

                                  G Richard DeemingR 2 Replies Last reply
                                  0
                                  • A Azam Niaz Ch

                                    No i am not using replication

                                    G Offline
                                    G Offline
                                    GuyThiebaut
                                    wrote on last edited by
                                    #19

                                    In which case all you need to read this article[^]

                                    “That which can be asserted without evidence, can be dismissed without evidence.”

                                    ― Christopher Hitchens

                                    1 Reply Last reply
                                    0
                                    • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

                                      ALTER DATABASE [your-database-name] SET RECOVERY SIMPLE;

                                      Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                                      A Offline
                                      A Offline
                                      Azam Niaz Ch
                                      wrote on last edited by
                                      #20

                                      how can i check which one is my current recovery model?? i change it from DB options but on changing full to simple LOG backup is not possible... ** DB is showing its size 221GB including log instead of showing only MDF file size ? what should i do next ?

                                      1 Reply Last reply
                                      0
                                      • Kornfeld Eliyahu PeterK Kornfeld Eliyahu Peter

                                        ALTER DATABASE [your-database-name] SET RECOVERY SIMPLE;

                                        Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                                        A Offline
                                        A Offline
                                        Azam Niaz Ch
                                        wrote on last edited by
                                        #21

                                        how can i check the old recovery model? i try to change it from DB options but after changing to simple LOGS backup is not possible. DB is showing its size 221GB including LDF size.. Any suggestion to get out from this issue.

                                        1 Reply Last reply
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                                        • A Azam Niaz Ch

                                          No i am not using replication

                                          Richard DeemingR Offline
                                          Richard DeemingR Offline
                                          Richard Deeming
                                          wrote on last edited by
                                          #22

                                          Try running the following query:

                                          SELECT
                                          [name],
                                          recovery_model_desc,
                                          log_reuse_wait_desc
                                          FROM
                                          sys.databases
                                          WHERE
                                          [name] = 'YourDatabaseName'

                                          Compare the value returned to the list on TechNet: Factors That Can Delay Log Truncation[^]


                                          "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

                                          "These people looked deep within my soul and assigned me a number based on the order in which I joined" - Homer

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