Huge and growing archive with ARN extension

[Joakim Byström]

Dear all,

I got disk full and it turned out to be a large .ARN file from an archive table. When I cleared some space, the file continued to grow until the space was consumed. I tried to find what process is running the optimization and creating the .ARN (with intention to kill it) with the mysql command

mysql> show full processlist\G

but nothing regarding the archive or optimization showed up. Any suggestions? It might not be an archive issue, but large ARN-files seem very unusual from a web search...

-rw-rw---- 1 mysql mysql 153G 2014-01-04 17:45 acu_data_io_value_archive.ARN
-rw-rw---- 1 mysql mysql 47M 2013-07-02 00:15 acu_data_io_value_archive.ARZ
-rw-rw---- 1 mysql mysql 8.5K 2013-03-25 11:40 acu_data_io_value_archive.frm

best regards,
Joakim Byström