[asterisk-bugs] [JIRA] (ASTERISK-30341) cdr_adaptive_odbc fails to write CDRs after database reload

[Gregory Massel (JIRA)]

Gregory Massel created ASTERISK-30341:
-----------------------------------------

             Summary: cdr_adaptive_odbc fails to write CDRs after database reload
                 Key: ASTERISK-30341
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-30341
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: CDR/cdr_adaptive_odbc
    Affects Versions: 18.15.1
         Environment: Asterisk 18.15.1 on Unbuntu 18.04.1
MySQL 8.0.31-0ubuntu0.20.04.2 on Ubuntu 20.04.2
Both servers on same physical network and subnet.
            Reporter: Gregory Massel
            Severity: Major


CDRs log perfectly to MySQL using cdr_adaptive_odbc up until the database shuts down and restarts.

Occasionally Ubuntu will release an update version package for MySQL. When it does so, the database server automatically downloads the update, stops MySQL, installs the update and then restarts MySQL. When this happens, cdr_adaptive_odbc loses connection to the MySQL server and fails to ever reconnect.

Asterisk logs countless messages like the following:
[Dec  7 00:00:04] WARNING[28054] cdr_adaptive_odbc.c: SQL Prepare failed![INSERT INTO cdr_vpbx5 (start, clid, src, dst, dnid, dcontext, channel, dstchannel, lastapp, lastdata, duration, billsec, disposition, amaflags, accountcode, uniqueid, peeraccount, linkedid, sequence) VALUES ({ ts '2022-12-06 23:59:45' }, '"Control" <0123456789>', '0123456789', '0123456789', '0123456789', 'swvpbx-internal', 'PJSIP/xxx202-0007b59d', 'PJSIP/yyy-0007b59e', 'Dial', 'PJSIP/yyy/sip:0123456789 at 10.1.2.3:5060,120,', 18, 0, 'NO ANSWER', 3, 'xxx', '1670363985.509608', 'xxx', '1670363985.509608', 717979)]

[Dec  7 00:00:04] WARNING[28054] cdr_adaptive_odbc.c: SQL Execute returned an error -1: HY000: [MySQL][ODBC 8.0(w) Driver][mysqld-8.0.31-0ubuntu0.20.04.1] (59)

I do NOT believe that the issue lies with the ODBC configuration, because func_odbc continues to work perfectly.

my res_odbc.conf file looks like:
;;; odbc setup file

[asterisk-cdr-connector]
enabled => yes
dsn => asterisk-cdr-connector
username => asterisk
password => redacted
pre-connect => yes
sanitysql => select 1
;idlecheck => 180
;share_connections => yes
;limit => 20
max_connections => 20

[clientzone-connector]
enabled => yes
dsn => clientzone-connector
username => redacted
password => redacted
pre-connect => yes
sanitysql => select 1
isolation => repeatable_read
;idlecheck => 180
;share_connections => yes
;limit => 20
max_connections => 20

My cdr_adaptive_odbc.conf file looks like:

[db]
connection=asterisk-cdr-connector
table=cdr

Restarting Asterisk solves the issue. Issuing a "module reload res_odbc.so" and "module reload cdr_adaptive_odbc.so" also solves the issue.

It is not just updates to MySQL that will cause this. Anything that causes the database to temporarily become inaccessible, e.g. a brief connectivity glitch, will also cause it.

This also does not affect all Asterisk servers connected to the database; it would appear that it only affects those that make/receive a call and therefore attempt to write a CDR during the time that the database is briefly inaccessible.

The correct functionality should be to attempt reconnection ~60 seconds later and then write the CDR, not to get caught in a frozen state.



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