On 3/14/20 8:34 AM, Karsten Hilbert wrote:
Hi all,

we have two reports for psycopg2 2.8 under Python 3 on Debian
showing a problem with the wire protocol (full logs appended):

  psycopg2.OperationalError: datos insuficientes en el mensaje «T»

or

  psycopg2.DatabaseError: el contenido del mensaje no concuerda con el largo, 
en el mensaje tipo «C»

The error happens at different times when running the same
code. The  versions involved:

  psycopg2 module version: 2.8.4 (dt dec pq3 ext lo64)
  PostgreSQL via DB-API module "<module 'psycopg2' from 
'/usr/lib/python3/dist-packages/psycopg2/__init__.py'>": API level 2.0, thread safety 2, 
parameter style "pyformat"
  libpq version (compiled in): 120000
  libpq version (loaded now) : 120002

  Platform: uname_result(system='Linux', node='Epigen7', 
release='5.4.0-4-amd64', version='#1 SMP Debian 5.4.19-1 (2020-02-13)', 
machine='x86_64', processor='')

  Python 3.7.6 (default, Jan 19 2020, 22:34:52) <\n>[GCC 9.2.1 20200117] on 
linux (posix)

  lsb_release: {'ID': 'Debian', 'OS': 'GNU/Linux', 'DESCRIPTION': 'Debian 
GNU/Linux bullseye/sid', 'RELEASE': 'testing', 'CODENAME': 'bullseye'}

  threading: sys.thread_info(name='pthread', lock='semaphore', version='NPTL 
2.29')

We don't yet know the exact version of PostgreSQL this is
running against but it is likely 12.2-1+b1 from
Debian/Unstable.

Any ideas or hints what to look at next ?

How was psycopg2 installed?

What is the code being run when the errors are thrown?


Thanks,
Karsten
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Adrian Klaver
adrian.kla...@aklaver.com


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