# xtrabackup 2.0.4 can't unlock tables

**URL:** <https://forums.percona.com/t/xtrabackup-2-0-4-cant-unlock-tables/2336>\
**Category:** Percona XtraBackup\
**Created:** [March 3, 2013, 8:08pm UTC](https://forums.percona.com/t/xtrabackup-2-0-4-cant-unlock-tables/2336 "2013-03-03T20:08:53Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![stronghearted](https://avatars.discourse-cdn.com/v4/letter/s/ea666f/32.png) [@stronghearted](https://forums.percona.com/u/stronghearted)\
**Post date:** [March 3, 2013, 8:08pm UTC](https://forums.percona.com/t/xtrabackup-2-0-4-cant-unlock-tables/2336/1 "2013-03-03T20:08:53Z")

</div>

Server version: 5.1.61-log Source distribution  
xtrabackup 2.0.4

backup log from xtrabackup:  
…  
[01] xtrabackup: Page 170 seems double write buffer. passing the check.  
[01] xtrabackup: Page 171 seems double write buffer. passing the check.  
[01] xtrabackup: Page 172 seems double write buffer. passing the check.

130228 03:00:16 innobackupex-1.5.1: Continuing after ibbackup has suspended  
…  
130228 03:00:16 innobackupex-1.5.1: Connected to database with mysql child process (pid=388)  
130228 03:00:18 innobackupex-1.5.1: Starting to lock all tables…

> > log scanned up to (870511098952)  
> > log scanned up to (870511285007)  
> > [01] …done  
> > [01] Streaming ./aaa.ibd  
> > [01] …done  
> > [01] Streaming ./bbb.ibd

130228 03:00:28 innobackupex-1.5.1: All tables locked and flushed to disk

> > log scanned up to (870511285007)

130228 03:00:30 innobackupex-1.5.1: Starting to backup .frm, .MRG, .MYD, .MYI,  
innobackupex-1.5.1: .TRG, .TRN, .ARM, .ARZ, .CSM, .CSV and .opt files in  
innobackupex-1.5.1: subdirectories of  
…  
130228 03:00:33 innobackupex-1.5.1: Finished backing up .frm, .MRG, .MYD, .MYI, .TRG, .TRN, .ARM, .ARZ, .CSV, .CSM and .opt files  
…  
innobackupex-1.5.1: Resuming ibbackup

> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > [01] …done  
> > [01] Streaming ./xx.ibd  
> > [01] …done  
> > [01] Streaming ./yy.ibd

> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)  
> > log scanned up to (870511289801)

Waiting for a long time,no unlock tables happend,so you will see readlock from show processlist;  
mysql\> show processlist;  
±------±------------±--------------------±------±------ ------±------±-------------------------------------------- ---- ±------------------+  
| Id | User | Host | db | Command | Time | State | Info |  
±------±------------±--------------------±------±------ ------±------±-------------------------------------------- -----±------------------+  
| 1 | system user | | NULL | Connect | 85045 | Waiting for master to send event | NULL |  
| 2 | system user | | NULL | Connect | 23401 | Waiting for release of readlock | NULL

what happend?  
thank you.