# pt-deadlock-logger error

**URL:** <https://forums.percona.com/t/pt-deadlock-logger-error/2561>\
**Category:** Percona Toolkit\
**Created:** [May 23, 2012, 12:46pm UTC](https://forums.percona.com/t/pt-deadlock-logger-error/2561 "2012-05-23T12:46:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![grego](https://avatars.discourse-cdn.com/v4/letter/g/f08c70/32.png) [@grego](https://forums.percona.com/u/grego)\
**Post date:** [May 23, 2012, 12:46pm UTC](https://forums.percona.com/t/pt-deadlock-logger-error/2561/1 "2012-05-23T12:46:11Z")

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I’m getting the following error when trying to run pt-deadlock-logger:

[root@13765-57713 ~]# pt-deadlock-logger --print --ask-pass --use=hsadmin --host=localhost  
Enter password:  
Argument “” isn’t numeric in numeric comparison (\<=\>) at /usr/bin/pt-deadlock-logger line 2149, line 1.  
[root@13765-57713 ~]#

I’m using the latest pt-deadlock-logger just pulled down today.

Running on:  
CentOS5.8  
perl 5, version 14, subversion 2 (v5.14.2) built for x86\_64-linux  
Linux 13765-57713 2.6.18-308.1.1.el5 #1 SMP Wed Mar 7 04:16:51 EST 2012 x86\_64 x86\_64 x86\_64 GNU/Linux  
Percona 5.5.21

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<div class="post-metadata">

**Author:** ![grego](https://avatars.discourse-cdn.com/v4/letter/g/f08c70/32.png) [@grego](https://forums.percona.com/u/grego)\
**Post date:** [May 23, 2012, 1:26pm UTC](https://forums.percona.com/t/pt-deadlock-logger-error/2561/2 "2012-05-23T13:26:17Z")

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For the record line 2149 in the pt-deadlock-logger I’m using is:

foreach my $txn ( sort { $a-\>{thread} \<=\> $b-\>{thread} } values %$txns ) {

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<div class="post-metadata">

**Author:** ![lsorensen](https://avatars.discourse-cdn.com/v4/letter/l/6bbea6/32.png) [@lsorensen](https://forums.percona.com/u/lsorensen)\
**Post date:** [May 25, 2012, 9:15am UTC](https://forums.percona.com/t/pt-deadlock-logger-error/2561/3 "2012-05-25T09:15:16Z")

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Same error noted here.

pt-deadlock-logger 2.1.1  
This is perl, v5.8.8 built for x86\_64-linux-thread-multi  
Linux 2.6.18-308.4.1.el5 #1 SMP Tue Apr 17 17:08:00 EDT 2012 x86\_64 x86\_64 x86\_64 GNU/Linux  
CentOS release 5.8 (Final)