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LP #1489613: pt-config-diff does not detect variance in 'group_concat_max_len' variable

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**Reported in Launchpad by Karl Keyton last update 28-08-2015 00:50:39

Version: Percona-Server-56 5.6.21

$ pt-config-diff --version
pt-config-diff 2.2.11

$ diff -b *.my.cnf | grep group_concat_max_len
< group_concat_max_len = 1M
$ pt-config-diff *.my.cnf
10 config differences
Variable sql01.my.cnf sql02.my.cnf
========================= =========================== ==========================
innodb_buffer_pool_size 137438953472 51539607552
key_buffer_size 45097156608 8388608
log_bin /mysqldb/logs/sql0000-bin /mysqldb/logs/sql0009-bin
myisam_max_sort_file_size 10737418240 1073741824
relay_log /mysqldb/logs/sql0000-re... /mysqldb/logs/sql0009-r...
relay_log_index /mysqldb/logs/sql0000-re... /mysqldb/logs/sql0009-r...
relay_log_info_file /mysqldb/logs/sql0000-re... /mysqldb/logs/sql0009-r...
server_id 1000 1009
tmpdir /ssd0/tmp /var/tmp
$

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lpjirasync January 24, 2018 at 8:48 PM

**Comment from Launchpad by: Karl Keyton on: 28-08-2015 00:50:39

overlooked the following from documentation:

"Only variables that all CONFIG sources have are compared because if a variable is not present then we cannot know or safely guess its value."

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Created January 24, 2018 at 8:47 PM
Updated February 4, 2018 at 12:17 AM
Resolved January 24, 2018 at 8:48 PM