# Exec\_Master\_Log\_Pos less than Read\_Master\_Log\_Pos after Slave I/O thread stopped

**URL:** <https://forums.percona.com/t/exec-master-log-pos-less-than-read-master-log-pos-after-slave-i-o-thread-stopped/7369>\
**Category:** Other MySQL® Questions\
**Created:** [January 7, 2020, 8:58am UTC](https://forums.percona.com/t/exec-master-log-pos-less-than-read-master-log-pos-after-slave-i-o-thread-stopped/7369 "2020-01-07T08:58:45Z")\
**Posts on this page:** 1\
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**Author:** ![lorraine.pocklington](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/lorraine.pocklington/32/37_2.png) [@lorraine.pocklington](https://forums.percona.com/u/lorraine.pocklington)\
**Post date:** [January 8, 2020, 8:12am UTC](https://forums.percona.com/t/exec-master-log-pos-less-than-read-master-log-pos-after-slave-i-o-thread-stopped/7369/3 "2020-01-08T08:12:02Z")

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Hi chris-card  
Can I just check for the sake of clarity if you are using Percona XtraDB Backup in your backup scripts and if so which version?  
Also, I know that you probably already realize this (sorry for the added hassle factor) but please be aware that 5.5 is end-of-life software…  
Let me know on PXB and I will see if anyone is about to advise on this question.

[URL][Percona Release Lifecycle Overview](https://www.percona.com/services/policies/percona-software-platform-lifecycle#lifecycle%5B/URL%5D)

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