mysql> show indexes from File;
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation 
| Cardinality | Sub_part | Packed | Null | Index_type | Comment |
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+
| File  |          0 | PRIMARY  |            1 | FileId      | A 
  |  4494348205 |     NULL | NULL   |      | BTREE      |         |
| File  |          1 | JobId    |            1 | JobId       | A 
  |          19 |     NULL | NULL   |      | BTREE      |         |
| File  |          1 | JobId    |            2 | PathId      | A 
  |   408577109 |     NULL | NULL   |      | BTREE      |         |
| File  |          1 | JobId    |            3 | FilenameId  | A 
  |  4494348205 |     NULL | NULL   |      | BTREE      |         |
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+




On 10/05/2015 10:30 AM, Stephen Thompson wrote:
>
>
> Phil,
>
> Good question.  I vaguely recollect doing that a few years back, but I
> don't immediately see any additional indexing.  Where can I reference
> what the default indexes are supposed to be?
>
> thanks,
> Stephen
>
>
>
> On 10/05/2015 10:28 AM, Phil Stracchino wrote:
>> On 10/05/15 13:17, Stephen Thompson wrote:
>>> At any rate, the only thing that's changed was the upgrade from 7.0.5 to
>>> 7.2.0.  The table involved is definitely the File table.  We do have
>>> jobs with 20-30 million records, so those jobs can be slow when it comes
>>> time for attribute insertion into the database (or to read out a file
>>> list for Accurate backups).  This why we've historically had innodb lock
>>> timeout of 3600.  However, it's only last week after the upgrade that
>>> we've ever had queries extend beyond that hour mark.
>>
>> Stephen,
>> Just as a thought, there have been a number of threads on this mailing
>> list recommending additional or modified indexes on the File table.
>> Have you added the suggested additional indexes?
>>
>>
>

-- 
Stephen Thompson               Berkeley Seismological Laboratory
stephen AT seismo.berkeley DOT edu    215 McCone Hall # 4760
Office: 510.664.9177           University of California, Berkeley
Remote: 510.214.6506 (Tue,Wed) Berkeley, CA 94720-4760

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