Percona Tools : Software Designed for Advanced MySQL/PerconaServer Tasks, Maintenance, and Monitoring

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3
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3answers
449 views

Finding differences between a master and slave when pt-table-sync fails

I have a table that's showing some differences on a master and slave according to pt-table-checksum (PTC). I've found some verifying differences beyond that. Certain tables in the mix have composite ...
1
vote
1answer
49 views

pt-query-digest results are empty

I have a slow log generated by MySQL 5.1.71-log, that I've copied onto another machine. It appears I'm not getting any results from pt-query-digest. $> pt-query-digest slow.log # 2.1s user time, ...
0
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1answer
72 views

Myloader command: Table doesn't exist

I took the backup of mysql database using mydumper command: mydumper -B mydb -o /backup/oct3 -s 500000 -c -m -S /tmp/mysql.sock -u root -p password@123 -v 3 Now, I am restoring mysql database ...
0
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1answer
420 views

Strange Locking issues while playing back logs via percona playback

Problem while replaying logs I am in the process of benchmarking a new DB node (specs at the end) and have run across some strange behavior: As described here i: Created a dump (innobackupex ftw) ...
1
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0answers
45 views

pt-online-schema-change with circular replication

So I have an alter table (adding 4 columns) to do on a fairly large table (74 million rows). The problem is this table has firstly to remain online and writable during the whole operation and ...
1
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0answers
199 views

innobackupex: What causes Slave_open_temp_tables did not become zero after waiting 15 minutes?

As you might know, in order to assure a consistent replication state, the slave should be backup only when there are no open temporary tables: ...
1
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0answers
86 views

pt-table-checksum generates no output

I've been using pt-table-checksum on our staging server successfully, but when I run ./pt-table-checksum h=localhost,u=user --ask-pass --lock-wait-time=50 --databases prod It just sits there. No ...
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0answers
11 views

Percona Toolkit pt-archiver doesn't work with --bulk-insert option

I'm running pt-archiver like this: pt-archiver --source ... --dest .. --where "last_updated BETWEEN '2015-01-26 00:00:00' AND '2015-02-01 23:59:59'" --ignore --no-check-columns --no-ascend ...
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0answers
41 views

Percona Master-Master lag issues

I have 2 servers with master-master replication using Percona MySQL 5.6 and I am having replication lag in the second server: db-02, however db-01 never had a lag situation. What could be causing ...
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0answers
135 views

How to decrease load time by chunking large file using Percona pt-fifo-split?

I'm loading data into a fresh instance which takes ~48s to load a single file (1G; 2.5m rows). To decrease load time, I tried chunking it into 100k rows using Percona's pt-fifo-split. Unfortunately, ...