Josip Deanovic on Friday 2015-07-31 21:58:15 wrote:
> Here you are:
>
> Selection Type = SQLQuery
> Selection Pattern = "SELECT DISTINCT
> JobId,StartTime,Type,Level,Name,PriorJobId FROM Job WHERE Name =
> 'jobname' AND JobBytes > 0 AND ((Level='F' AND JobStatus IN ('T', 'W')
> AND StartTime >= (SELECT DISTINCT StartTime FROM Job WHERE Name =
> 'jobname' AND Level='F' AND JobStatus IN ('T', 'W') ORDER BY StartTime
> DESC LIMIT 1)) OR (Level='D' AND JobStatus IN ('T', 'W') AND StartTime
> >= (SELECT DISTINCT StartTime FROM Job WHERE Name = 'jobname' AND
> Level='F' AND JobStatus IN ('T', 'W') ORDER BY StartTime DESC LIMIT 1))
> OR (Level='I' AND JobStatus IN ('T', 'W') AND StartTime >= (SELECT
> DISTINCT StartTime FROM Job WHERE Name = 'jobname' AND Level='D' AND
> JobStatus IN ('T', 'W') ORDER BY StartTime DESC LIMIT 1) OR StartTime
> >= (SELECT DISTINCT StartTime FROM Job WHERE Name = 'jobname' AND
> Level='F' AND JobStatus IN ('T', 'W') ORDER BY StartTime DESC LIMIT
> 1))) AND NOT JobId = ANY (select PriorJobId FROM Job WHERE Name =
> 'jobname' AND PriorJobId <> 0) AND Type<>'C' ORDER BY JobId;"
>
>
> I am using it for more than a year and it selects only the latest full
> job along with its differential and all the incremental jobs that
> haven't been copied yet.
> If someone finds a way to improve it, it would be nice to hear about it.
>
> The string "jobname" should be replaced with the actual job name. The
> string appears six times in the query.
>
> I recommend tests directly in the database before using the query in
> production.
> I am using it with MySQL database.
Recently I have noticed that if storage loses its connection during
the copy process it would lead to a problem which requires the query
above to be modified to get around this.
When a job which is being copied fails it will have its JobStatus
correctly set (depending on whether it has failed or it has been
canceled) as well as its PriorJobId which will show the JobId of the
original job.
Furthermore until a copy of the original job is successfully finished
it will have its Type set to "B" instead of "C" which defeats the logic
of the above query.
The modified query below should solve all of this:
Selection Type = SQLQuery
Selection Pattern = "SELECT DISTINCT
JobId,StartTime,Type,Level,JobStatus,Name,PriorJobId FROM Job WHERE Name =
'jobname' AND JobBytes > 0 AND ((Level='F' AND JobStatus IN ('T', 'W') AND
StartTime >= (SELECT DISTINCT StartTime FROM Job WHERE Name = 'jobname' AND
Level='F' AND JobStatus IN ('T', 'W') ORDER BY StartTime DESC LIMIT 1)) OR
(Level='D' AND JobStatus IN ('T', 'W') AND StartTime >= (SELECT DISTINCT
StartTime FROM Job WHERE Name = 'jobname' AND Level='F' AND JobStatus IN ('T',
'W') ORDER BY StartTime DESC LIMIT 1)) OR (Level='I' AND JobStatus IN ('T',
'W') AND StartTime >= (SELECT DISTINCT StartTime FROM Job WHERE Name =
'jobname' AND Level='D' AND JobStatus IN ('T', 'W') ORDER BY StartTime DESC
LIMIT 1) OR StartTime >= (SELECT DISTINCT StartTime FROM Job WHERE Name =
'jobname' AND Level='F' AND JobStatus IN ('T', 'W') ORDER BY StartTime DESC
LIMIT 1))) AND Type = 'B' AND PriorJobId = 0 AND NOT JobId = ANY (select
PriorJobId FROM Job WHERE Name = 'jobname' AND PriorJobId <> 0
AND JobStatus = 'T') ORDER BY JobId;"
The string "jobname" should be replaced with the actual job name. The
string appears six times in the query.
It should be tested directly in the database before using the query in
production.
I am using it with MySQL database and I haven't tested it with PostgreSQL
but I think it should work without problems.
--
Josip Deanovic
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