Cannot find DBI.pm even if it's in the path - mysql

I'm trying to install the munin-mysql plugin but I'm facing a strange error. Munin complains that it cannot find DBI.pm in the #INC:
[root#mybox perl5]# munin-run mysql
Can't locate DBI.pm in #INC (#INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /etc/munin/plugins/mysql line 127.
BEGIN failed--compilation aborted at /etc/munin/plugins/mysql line 127.
However, it is indeed in the path, and precisely at /usr/local/lib64/perl5. It was installed via the command cpanm DBI.
In fact, there are several DBI.pm files; how do I know which one is to be used?
[root#mybox perl5]# find / -name DBI.pm
/root/.cpan/build/DBI-1.634-Aazmvi/blib/lib/Bundle/DBI.pm
/root/.cpan/build/DBI-1.634-Aazmvi/blib/lib/DBI.pm
/root/.cpan/build/DBI-1.634-Aazmvi/lib/Bundle/DBI.pm
/root/.cpan/build/DBI-1.634-Aazmvi/DBI.pm
/root/.cpanm/work/1460983027.32244/DBI-1.634/blib/lib/Bundle/DBI.pm
/root/.cpanm/work/1460983027.32244/DBI-1.634/blib/lib/DBI.pm
/root/.cpanm/work/1460983027.32244/DBI-1.634/lib/Bundle/DBI.pm
/root/.cpanm/work/1460983027.32244/DBI-1.634/DBI.pm
/root/munin-mysql-master/t/mock/DBI.pm
/usr/local/lib64/perl5/Bundle/DBI.pm
/usr/local/lib64/perl5/DBI.pm
Related questions:
Can't locate DBI.pm
Unable to locate DBI.pm module in Perl

munin-run switches users. The default user is nobody. That user probably does not have permission to read the file.
The script must be run with sufficient privileges, usually as root, as it switches to either munin-node's default user (often "nobody") or any user specifically configured to run the given plugin.
Check with munin-run --debug what user it's running as and check that user can read /usr/local/lib64/perl5/DBI.pm.

Related

unable to install any pkg in Octave

I am new to Octave, coming from Matlab. I am trying to install a few packages, and so far none has worked. I have tried the download method from forge, then running the install command. But my question is about my latest attempt. There it is:
pkg install -global -forge io
csvconcat.cc:79:37: warning: result of comparison of constant 18446744073709551615 with expression of type
'unsigned int' is always true [-Wtautological-constant-out-of-range-compare]
while ((pos=str.find(prot, pos)) != str.npos) {
~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~
1 warning generated.
error: couldn't append to /Applications/Octave-4.4.1.app/Contents/Resources/usr/Cellar/octave-octave-app#4.4.1/4.4.1/share/octave/octave_packages
save: unable to open output file '/Applications/Octave-4.4.1.app/Contents/Resources/usr/Cellar/octave-octave-app#4.4.1/4.4.1/share/octave/octave_packages'
error: called from
install at line 254 column 7
pkg at line 437 column 9
Couldn't find any documentation on it, I am a bit lost.... (oh and btw, I can't find the config.log file! where is that gem?)
I am on MacOS catalina 10.15.7, and just followed that procedure https://flaviocopes.com/fix-xcrun-error-invalid-active-developer-path/, which solved the issues I had before which is described on that page.
cheers for any help
The error:
error: couldn't append to /Applications/Octave-4.4.1.app/Contents/Resources/usr/Cellar/octave-octave-app#4.4.1/4.4.1/share/octave/octave_packages
save: unable to open output file '/Applications/Octave-4.4.1.app/Contents/Resources/usr/Cellar/octave-octave-app#4.4.1/4.4.1/share/octave/octave_packages'
error: called from
install at line 254 column 7
pkg at line 437 column 9
basically says it's failing to save to that file. Probably a permissions issue. Check if the file /Applications/Octave-4.4.1.app/Contents/Resources/usr/Cellar/octave-octave-app#4.4.1/4.4.1/share/octave/octave_packages exists and its permissions. That file is a database of all packages installed globally, i.e., for all users in the system.
Fixing the permission issues is dependent on what is the permissions issue you have (probably you need to run octave as root to install a global package). But maybe try to install the package for your user only, i.e., install the package without the -global flag, like so:
pkg install -forge io

Perl script Can't locate Text/Template.pm in #INC [duplicate]

This question already has answers here:
Why does my Perl program complain "Can't locate URI.pm in #INC"?
(5 answers)
Closed 7 years ago.
I am trying to tune the MySQL tuner script written in Perl. But getting the error below:
root#server2 [/tmp]# perl mysqltuner.pl
Can't locate Text/Template.pm in #INC (#INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at mysqltuner.pl line 2816.
BEGIN failed--compilation aborted at mysqltuner.pl line 2816 (#1)
(F) You said to do (or require, or use) a file that couldn't be
found. Perl looks for the file in all the locations mentioned in #INC,
unless the file name included the full path to the file. Perhaps you
need to set the PERL5LIB or PERL5OPT environment variable to say where
the extra library is, or maybe the script needs to add the library name
to #INC. Or maybe you just misspelled the name of the file. See
perlfunc/require and lib.
Uncaught exception from user code:
Can't locate Text/Template.pm in #INC (#INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at mysqltuner.pl line 2816.
BEGIN failed--compilation aborted at mysqltuner.pl line 2816.
at mysqltuner.pl line 2816
It would glad to provide solution for the same.
In your perl script mysqltuner.pl, you are using a module Text::Template which is not installed in your system, that's why you are getting this warning.
You can installed it by using cpan. If you are on Linux system, open a terminal and type:
sudo cpan install Text::Template #sudo is not required if you have login as root.
If you are on windows system and using ActivePerl, use this:
ppm install Text-Template
Open Command Promt. Type in the following:
ppm install Text-Template

How can I check if a Perl module (DBD::mysql) is properly installed?

I am using XAMPP on Mac OS X Yosemite, and I am trying to communicate with my MySQL database using Perl.
This requires two things: (1) DBI and (2) the mysql driver module, DBD::mysql.
I ran into a lot of trouble installing the DBD::mysql portion. However, after following some instructions online, it now looks like DBD::mysql is installed, but I am skeptical that it has correctly.
In Terminal, when I load up cpan and then type "install DBD::mysql", it responds, "DBD::mysql is up to date (4.032)".
From the looks of it, then, it is installed. However, I am worried that what I've installed is enough for it to say, "Hey, I am installed!", but not enough for it to actually be functional, which would be why I'm having errors show up when I try to connect to my database with Perl:
install_driver(mysql) failed: Can't load '/Library/Perl/5.18/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle' for module DBD::mysql: dlopen(/Library/Perl/5.18/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle, 1): Library not loaded: libmysqlclient.18.dylib
Referenced from: /Library/Perl/5.18/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle
Reason: image not found at /System/Library/Perl/5.18/darwin-thread-multi-2level/DynaLoader.pm line 194.
at (eval 6) line 3.
Compilation failed in require at (eval 6) line 3.
Perhaps a required shared library or dll isn't installed where expected
at login.pl line 9.
Relevant Perl code snippet:
my $dbh = DBI->connect(
"dbi:mysql:dbname=TEST",
"root",
"",
{ RaiseError => 1 },
) or die $DBI::errstr;
I am trying to troubleshoot whether this is a problem with my installation of DBD::mysql, or if it is my Perl code.
How can I verify whether my installation of DBD::mysql is all good? Better yet, how can I stop getting this error?
Thank you.
You could wrap the connect() call into an eval block to catch this error, however you don't have many options left if it crashes, probably just to try and produce a more user-friendly error messsage and then die anyway.
As for why you are getting the error, try checking where libmysqlclient.18.dylib lives on your system. It seems like it was somewhere where it could be found during compilation of the DBD::mysql driver but not during your script's runtime. Assuming it hasn't been accidentially uninstalled, adding its directory to the DYLD_LIBRARY_PATH variable should work. I don't know what config to add the path to to make that addition permanent on OSX though.

Need help with perl error in using DBD::mysql

When I run a perl script which uses DBD::mysql , I get the error message:
install_driver(mysql) failed: Can't load '/home/y/lib/perl5/site_perl/5.8/i686-linux-64int/auto/DBD/mysql/mysql.so'
for module DBD::mysql: libmysqlclient.so.16: cannot open shared object file: No such file or directory
at /home/y/lib/perl5/5.8/i686-linux-64int/DynaLoader.pm line 230. at (eval 30) line 3
I am new to perl, but from what I understand it needs mysql.so and it knows the path.
/home/y/lib/perl5/site_perl/5.8/i686-linux-64int/auto/DBD/mysql/mysql.so is present.
Then why the problem?
The file that is missing is libmysqlclient.so.16, not mysql.so. It comes with the mysqlclient package on some distributions.
Make sure /etc/ld.so.conf contains /usr/local/mysql/lib/mysql and /usr/local/mysql/ . If not, add them and run ldconfig.

Installation error for DBD::MySQL on OSX v10.6.6

I'm attempting to get DBD::MySQL working on Snow Leopard (v10.6.6). The default version of Perl that comes with the OS is v5.10.0. Since I've read that's 64-bit, I went ahead and downloaded and installed a 64-bit version of MySQL (mysql-5.5.8-osx10.6-x86_64).
Installing and setting up MySQL went smoothly, here's my config and version number for reference.
I used CPAN to download DBI and the DBD::MySQL drivers. I then:
Installed DBI
Setup a Makefile.PL
Ran the make command from the command line
The Makefile.PL said it would use the following settings for compiling and testing:
I will use the following settings for compiling and testing:
cflags (mysql_config ) = -I/usr/local/mysql/include -Os -g -fno-common -fno-strict-aliasing -arch x86_64
embedded (mysql_config ) =
libs (mysql_config ) = -L/usr/local/mysql/lib -lmysqlclient -lpthread
mysql_config (guessed ) = mysql_config
nocatchstderr (default ) = 0
nofoundrows (default ) = 0
ssl (guessed ) = 0
testdb (default ) = test
testhost (default ) =
testpassword (User's choice) = r00t!
testsocket (default ) =
testuser (User's choice) = root
To change these settings, see 'perl Makefile.PL --help' and
'perldoc INSTALL'.
Multiple copies of Driver.xst found in: /Library/Perl/5.10.0/darwin-thread-multi-2level/auto/DBI/ /System/Library/Perl/Extras/5.10.0/darwin-thread-multi-2level/auto/DBI/ at Makefile.PL line 907
Using DBI 1.616 (for perl 5.010000 on darwin-thread-multi-2level) installed in /Library/Perl/5.10.0/darwin-thread-multi-2level/auto/DBI/
Writing Makefile for DBD::mysql
Everything seemed to be going fine, until I tried to run make test :
t/00base....................NOK 2/6# Tried to use 'DBD::mysql'.
# Error: Can't load '/Users/swm/.cpan/build/DBD-mysql-4.018-Pnd2qz/blib/arch/auto/DBD/mysql/mysql.bundle' for module DBD::mysql: dlopen(/Users/swm/.cpan/build/DBD-mysql-4.018-Pnd2qz/blib/arch/auto/DBD/mysql/mysql.bundle, 2): Library not loaded: libmysqlclient.16.dylib
# Referenced from: /Users/swm/.cpan/build/DBD-mysql-4.018-Pnd2qz/blib/arch/auto/DBD/mysql/mysql.bundle
# Reason: image not found at /System/Library/Perl/5.10.0/darwin-thread-multi-2level/DynaLoader.pm line 207.
# at (eval 7) line 2
# Compilation failed in require at (eval 7) line 2.
# BEGIN failed--compilation aborted at (eval 7) line 2.
FAILED--Further testing stopped: Unable to load DBD::mysql
make: *** [test_dynamic] Error 9
It's failing because it can't seem to find the mysql.bundle for DBD. Has anyone come across this problem? Or can point me in the right direction on what to try next? I need DBI/DBD::MySQL for my new job and I'm scrambling to find a solution.
Many thanks in advance.
I got around the "Library not loaded: libmysqlclient.16.dylib" problem by placing a symbolic link in /usr/lib/" to /usr/local/mysql-5.5.8-osx10.6-x86_64/lib/libmysqlclient.16.dylib
I worked around the same or a similar issue. Somehow I could build and test DBD::mysql with cpan but when I tried to use it in a script it said things like
dyld: lazy symbol binding failed: Symbol not found: _mysql_init
Referenced from: /Library/Perl/5.10.0/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle
Expected in: flat namespace
Apparently, it's a 64-bit vs 32-bit issue.
Installing the fink dbd-mysql-pm5100 package made it work though it took kind of a long time. I also removed the cpan-installed version:
sudo rm -rf /Library/Perl/5.10.0/darwin-thread-multi-2level/auto/DBD/mysql
sudo rm -rf /Library/Perl/5.10.0/darwin-thread-multi-2level/DBD/mysql
sudo rm -rf /Library/Perl/5.10.0/darwin-thread-multi-2level/DBD/mysql.pm
also include in .profile
export VERSIONER_PERL_PREFER_32_BIT=yes;
Besides creating the link the executions of the program with DBI::mysql generated an error, thus including this variable on the environment make it works
I know this is an old post. But I suppose the best solution would be to add the library directory to the DYLD_FALLBACK_LIBRARY_PATH env variable. (reason here: https://stackoverflow.com/a/3172515/119958 )
There is no ldconfig in mac, so just add the path to this env var and rerun the install process for DBD::mysql
Donato-Vianas-MacBook-Pro:Invoicer donato$ cpanm DBD::mysql
--> Working on DBD::mysql
Fetching http://www.cpan.org/authors/id/C/CA/CAPTTOFU/DBD-mysql-4.022.tar.gz ... OK
Configuring DBD-mysql-4.022 ... OK
Building and testing DBD-mysql-4.022 ... FAIL
! Installing DBD::mysql failed. See /Users/donato/.cpanm/build.log for details.
# Failed test 'use DBD::mysql;'
# at t/00base.t line 21.
# Tried to use 'DBD::mysql'.
# Error: Can't load '/Users/donato/.cpanm/work/1359948144.491/DBD-mysql-4.022/blib/arch/auto/DBD/mysql/mysql.bundle' for module DBD::mysql: dlopen(/Users/donato/.cpanm/work/1359948144.491/DBD-mysql-4.022/blib/arch/auto/DBD/mysql/mysql.bundle, 2): Library not loaded: libmysqlclient.18.dylib
Donato-Vianas-MacBook-Pro:Invoicer donato$ export DYLD_FALLBACK_LIBRARY_PATH=/usr/local/mysql/lib/:$DYLD_FALLBACK_LIBRARY_PATH
Donato-Vianas-MacBook-Pro:Invoicer donato$ cpanm DBD::mysql--> Working on DBD::mysql
Fetching http://www.cpan.org/authors/id/C/CA/CAPTTOFU/DBD-mysql-4.022.tar.gz ... OK
Configuring DBD-mysql-4.022 ... OK
Building and testing DBD-mysql-4.022 ... OK
Successfully installed DBD-mysql-4.022
1 distribution installed
Donato's solution works for install, but the var has to be present at runtime as well or I get the same error. The following fixes this at runtime for shell and _www user:
# For command line use, add following line to ~/.bash_profile:
export DYLD_FALLBACK_LIBRARY_PATH=/usr/local/mysql/lib/:$DYLD_FALLBACK_LIBRARY_PATH
# If Apache needs it, add following line to /etc/apache2/httpd.conf:
# On Lion Server, I put it after <IfDefine MACOSXSERVER>, but shouldn't matter
SetEnv DYLD_FALLBACK_LIBRARY_PATH /usr/local/mysql/lib/:$DYLD_FALLBACK_LIBRARY_PATH
It's somewhat of an aside, but I strongly recommend setting up a separate perl on the machine -- either by fink / macports, or from source -- and leaving the Mac's system perl (and its libraries) alone.
Once I did this on my own Mac, I had very few troubles installing modules thereafter, and I didn't have to worry about accidentally blowing a hole in my OS by breaking the perl that the system uses.
If it were my Mac, I'd install a new perl from source (the Perl source distribution is smart enough to install itself see that it's on a Mac and install itself safely into /usr/local/bin) and the proceed from thee to install DBD::Mysql (and the other modules you require).