Re: [Bacula-users] 7.2 mysql issue?

On 5.10.2015 20.32, Stephen Thompson wrote:
>
> 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      |         |
> +-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+
>
>

I seem to have an extra index from that..

show indexes from File;
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation 
| Cardinality | Sub_part | Packed | Null | Index_type | Comment | 
Index_comment |
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| File  |          0 | PRIMARY  |            1 | FileId      | A 
  |   5,095,248 | NULL     | NULL   |      | BTREE      |         | 
           |
| File  |          1 | JobId    |            1 | JobId       | A 
  |       2,736 | NULL     | NULL   |      | BTREE      |         | 
           |
| File  |          1 | JobId_2  |            1 | JobId       | A 
  |          44 | NULL     | NULL   |      | BTREE      |         | 
           |
| File  |          1 | JobId_2  |            2 | PathId      | A 
  |   1,019,049 | NULL     | NULL   |      | BTREE      |         | 
           |
| File  |          1 | JobId_2  |            3 | FilenameId  | A 
  |   5,095,248 | 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?
>>>
>>>
>>
>


-- 
jarif.bit

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