Bug #35169 ndb_mgmd reports errors to stdout, not stderr

• Submitted: 9 Mar 2008 9:06
• Modified: 8 Oct 2008 13:43
• Reporter: Hartmut Holzgraefe
• Status: Closed
• Category: MySQL Cluster: Cluster (NDB) storage engine
• Severity: S3 (Non-critical)
• Version: 5.1.22, all
• OS: Any
• Assigned to: Tomas Ulin
• CPU Architecture: Any
• Tags: usability

[9 Mar 2008 9:06] Hartmut Holzgraefe

Description:
ndb_mgmd reports configuration errors to the regular standard output channel,
not the standard error channel as it is supposed to

i tried to check config.ini files for errors using

  ndb_mgmd --print-full-config config.ini >/dev/null

redirecting standard output to /dev/null to only see 
error messages but not regular success output

i can now check the ndb_mgmd exit status for errors
but won't see the actual error messages unless i 
rerun ndb_mgmd without redirection a 2nd time like this:

if ! ndb_mgmd --print-full-config config.ini >/dev/null
then
     ndb_mgmd --print-full-config config.ini
fi
  

How to repeat:
create a simple bogus config.ini like

 [ndbd_default]
 foo=bar

then run ndbd 

  > /usr/local/mysql-5.1.22/libexec/ndb_mgmd --print-full-config config.ini 
  Error line 2: [DB] Unknown parameter: foo
  Error line 2: Could not parse name-value pair in config file.
  Invalid configuration file: config.ini

and now with stdout redirection

  > /usr/local/mysql-5.1.22/libexec/ndb_mgmd --print-full-config config.ini /dev/null

to see that the output is sent to stdout, not stderr

Suggested fix:
Always send error messages to stderr, *not* stdout

[17 Mar 2008 8:22] Bugs System

A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/commits/44093

ChangeSet@1.2541, 2008-03-16 15:15:26+01:00, [e-mail] +1 -0
  Bug #35169  	ndb_mgmd reports errors to stdout, not stderr

[3 Apr 2008 15:25] Jon Stephens

Documented bugfix in the 5.1.23-ndb-6.3.11 changelog as follows:

        ndb_mgmd reported errors to STDOUT instead to STDERR.

Left Patch Pending status pending further merges.

[4 Apr 2008 22:38] Jon Stephens

Also documented fix in the 5.1.23-ndb-6.2.15 changelog.

[8 Oct 2008 13:43] Jon Stephens

Already merged to 6.2/6.3 and documented; closing.

[12 Dec 2008 23:29] Bugs System

Pushed into 6.0.6-alpha  (revid:[e-mail]-20080316141526-26346) (version source revid:[e-mail]-20080516085603-30848) (pib:5)