Sfrgttk

Access elements in std::string where positon of string is greater than its size

What does Linus Torvalds mean when he says that Git "never ever" tracks a file?

On the insanity of kings as an argument against monarchy

How to manage monthly salary

Falsification in Math vs Science

What is the best strategy for white in this position?

How do you say "canon" as in "official for a story universe"?

Output the Arecibo Message

Limit to 0 ambiguity

Inflated grade on resume at previous job, might former employer tell new employer?

I see my dog run

Limit the amount of RAM Mathematica may access?

Should I write numbers in words or as numerals when there are multiple next to each other?

I looked up a future colleague on LinkedIn before I started a job. I told my colleague about it and he seemed surprised. Should I apologize?

What does "sndry explns" mean in one of the Hitchhiker's guide books?

How long do I have to send my income tax payment to the IRS?

If the Wish spell is used to duplicate the effect of Simulacrum, are existing duplicates destroyed?

aging parents with no investments

Is flight data recorder erased after every flight?

Does a dangling wire really electrocute me if I'm standing in water?

What is the use of option -o in the useradd command?

Landlord wants to switch my lease to a "Land contract" to "get back at the city"

Why is it "Tumoren" and not "Tumore"?

Should I use my personal or workplace e-mail when registering to external websites for work purpose?

Index rebuild blocks itself and runs in serializable isolation level

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}

2

1

I’ve implemented Ola Hallengren maintenance solution in one database, and I’m noticing that it’s getting blocked by itself, I don’t know why honestly.

What I have noticed, is that it seems to be run within a serializable isolation level, which is weird since the default isolation level is read committed, and the maintenance script does not change it explicitly.

So, the questions are:

• Could the isolation level be related to this locking issue?


• Assuming that indexes are rebuild in sequential way….why would the script block itself within the same SPID?

Blocked process report sample can be found here.

Output of @LogToTable='Y' can be found here.

The process does complete without errors. This is still a problem, due to the fact that all running user requests are put on hold while the reindex process is running. Duration would not be an issue if no locks were generated. Since a lot of locks are generated, then duration (2 hours) is indeed an issue on a heavily used database.

sql-server ola-hallengren index-maintenance

share|improve this question

edited 3 mins ago

Paul White♦

54.1k14287461

asked Jun 1 '18 at 21:37

dsuydsuy

283

add a comment | 

2

1

I’ve implemented Ola Hallengren maintenance solution in one database, and I’m noticing that it’s getting blocked by itself, I don’t know why honestly.

What I have noticed, is that it seems to be run within a serializable isolation level, which is weird since the default isolation level is read committed, and the maintenance script does not change it explicitly.

So, the questions are:

• Could the isolation level be related to this locking issue?


• Assuming that indexes are rebuild in sequential way….why would the script block itself within the same SPID?

Blocked process report sample can be found here.

Output of @LogToTable='Y' can be found here.

The process does complete without errors. This is still a problem, due to the fact that all running user requests are put on hold while the reindex process is running. Duration would not be an issue if no locks were generated. Since a lot of locks are generated, then duration (2 hours) is indeed an issue on a heavily used database.

sql-server ola-hallengren index-maintenance

share|improve this question

edited 3 mins ago

Paul White♦

54.1k14287461

asked Jun 1 '18 at 21:37

dsuydsuy

283

add a comment | 

I’ve implemented Ola Hallengren maintenance solution in one database, and I’m noticing that it’s getting blocked by itself, I don’t know why honestly.

What I have noticed, is that it seems to be run within a serializable isolation level, which is weird since the default isolation level is read committed, and the maintenance script does not change it explicitly.

So, the questions are:

• Could the isolation level be related to this locking issue?


• Assuming that indexes are rebuild in sequential way….why would the script block itself within the same SPID?

Blocked process report sample can be found here.

Output of @LogToTable='Y' can be found here.

The process does complete without errors. This is still a problem, due to the fact that all running user requests are put on hold while the reindex process is running. Duration would not be an issue if no locks were generated. Since a lot of locks are generated, then duration (2 hours) is indeed an issue on a heavily used database.

sql-server ola-hallengren index-maintenance

share|improve this question

edited 3 mins ago

Paul White♦

54.1k14287461

asked Jun 1 '18 at 21:37

dsuydsuy

283

share|improve this question

edited 3 mins ago

Paul White♦

54.1k14287461

asked Jun 1 '18 at 21:37

dsuydsuy

283

share|improve this question

edited 3 mins ago

Paul White♦

54.1k14287461

asked Jun 1 '18 at 21:37

dsuydsuy

283

edited 3 mins ago

Paul White♦

54.1k14287461

edited 3 mins ago

Paul White♦

54.1k14287461

asked Jun 1 '18 at 21:37

dsuydsuy

283

asked Jun 1 '18 at 21:37

dsuydsuy

283