Postgresql - limit size of logged message












-2















I'm trying to overcome a problem with unreadable PostgreSQL log. There is a database that contains (unfortunately) files in column with datatype bytea (bad application design, lot of time to rework to mongo etc.).



I have configured PostgreSQL to keep track of low performing queries by setting:



log_min_duration_statement = 200 


Due to this my PostgreSQL log is filled with huge mess, something like:




2018-07-01 09:03:31 CEST DETAIL: parameters: $1 = '38007670', $2 =
'9772671', $3 = '%PDF-1.515%34234331732315121 0

obj15<</Metadata 2 0 R/OCProperties<</D<</OFF[8 0 R]/ON[9 0 R 10 0 R
11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R] ...




This can go on well over thousands of lines in the log file and it just makes the whole thing unusable.




  • Is there any way to "cut" the string in the detail to some maximal size?

  • Or to limit the size of the log file?










share|improve this question





























    -2















    I'm trying to overcome a problem with unreadable PostgreSQL log. There is a database that contains (unfortunately) files in column with datatype bytea (bad application design, lot of time to rework to mongo etc.).



    I have configured PostgreSQL to keep track of low performing queries by setting:



    log_min_duration_statement = 200 


    Due to this my PostgreSQL log is filled with huge mess, something like:




    2018-07-01 09:03:31 CEST DETAIL: parameters: $1 = '38007670', $2 =
    '9772671', $3 = '%PDF-1.515%34234331732315121 0

    obj15<</Metadata 2 0 R/OCProperties<</D<</OFF[8 0 R]/ON[9 0 R 10 0 R
    11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R] ...




    This can go on well over thousands of lines in the log file and it just makes the whole thing unusable.




    • Is there any way to "cut" the string in the detail to some maximal size?

    • Or to limit the size of the log file?










    share|improve this question



























      -2












      -2








      -2








      I'm trying to overcome a problem with unreadable PostgreSQL log. There is a database that contains (unfortunately) files in column with datatype bytea (bad application design, lot of time to rework to mongo etc.).



      I have configured PostgreSQL to keep track of low performing queries by setting:



      log_min_duration_statement = 200 


      Due to this my PostgreSQL log is filled with huge mess, something like:




      2018-07-01 09:03:31 CEST DETAIL: parameters: $1 = '38007670', $2 =
      '9772671', $3 = '%PDF-1.515%34234331732315121 0

      obj15<</Metadata 2 0 R/OCProperties<</D<</OFF[8 0 R]/ON[9 0 R 10 0 R
      11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R] ...




      This can go on well over thousands of lines in the log file and it just makes the whole thing unusable.




      • Is there any way to "cut" the string in the detail to some maximal size?

      • Or to limit the size of the log file?










      share|improve this question
















      I'm trying to overcome a problem with unreadable PostgreSQL log. There is a database that contains (unfortunately) files in column with datatype bytea (bad application design, lot of time to rework to mongo etc.).



      I have configured PostgreSQL to keep track of low performing queries by setting:



      log_min_duration_statement = 200 


      Due to this my PostgreSQL log is filled with huge mess, something like:




      2018-07-01 09:03:31 CEST DETAIL: parameters: $1 = '38007670', $2 =
      '9772671', $3 = '%PDF-1.515%34234331732315121 0

      obj15<</Metadata 2 0 R/OCProperties<</D<</OFF[8 0 R]/ON[9 0 R 10 0 R
      11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R] ...




      This can go on well over thousands of lines in the log file and it just makes the whole thing unusable.




      • Is there any way to "cut" the string in the detail to some maximal size?

      • Or to limit the size of the log file?







      postgresql-9.5 log






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 6 mins ago









      hot2use

      8,35752055




      8,35752055










      asked Jul 2 '18 at 7:21









      krszpkrszp

      11




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