Find the SQL Server Execution Plan by Cost in SSMS

I have given a great plan of execution and I try to find the nodes related to high costs. SSMS offers a search utility, however, I did not find the option to search for the cost value as a percentage.
From my image below, how can I look for a node representing 21% of the cost? The second entry allows you to select equals and contains. Is it possible to search for operations that cost more than 15%?

SSMS ExecutionPlan Search

java – Ensure the execution order of threads when writes must occur before reads

I am currently designing a server with the following structure:

  • A TCP thread pool that receives data from the network
  • A queue containing these requests
  • A pool of fixed-size work threads that take requests from the queue and run some jobs where ConcurrentHashMap is read and the results analyzed. Once the job is done, the results are published in a queue for writing.
  • The queue for writing stores write requests for ConcurrentHashMap
  • A fixed-size write thread pool that takes requests from the write pool and writes them to the ConcurrentHashMap

Server constraint:

  • For a particular entry in ConcurrentHashMap, a writing will be posted on the network several seconds before a reading is posted on the network. Threads should never allow reading to be scheduled before writing.

My ideas up here:

  • First of all, I hope that the 3 to 5 seconds is a sufficient head start for the writing to pass before reading.
  • Set write threads to high priority and read threads to a low priority
  • A reading can check the last time of writing, and if it is big enough (like several minutes or hours ago), it knows how to ignore the last write because it is obsolete. However, he knows then that he can not make an informed decision. I could have the thread try again as twice in the case of an obsolete input, but that sounds awkward.
  • Addition of the write queue so that the TCP pool can be directly published in the write queue (write requests should not be processed by the work pool) instead of the queue of tasks when the read requests are placed in the queue of the worker thread, and then posted. some logging information in the queue to write later. after the pool of workers

Are there ways to reduce the risk of reading before writing or are the precautions I have already taken sufficient? Should I use the re-attempt mechanism?

Also, is a write queue really needed, or can I just use worker threads to also handle writes? The order of writing is not important. – Block the file during execution

My problem is that, I have an application in that generates a PDF, the detail is that when 2 users try to generate the pdf, they damage the file and it hangs (it does not allow to delete it), there is a way to indicate that the file is used and that the file can not be modified before the end of the process?

Thank you

linux – virt-install crashes, no apparent error in the logs, and the virsh list shows its execution after the ctrl c output, no domifaddr if

I was thrown into a management box that virtually the person before me was using virtually, so trying to upgrade. As a test, make a virtual installation of this:

virt-install --virt-type = kvm --name kosmos-icc --ram 1000 --os-variant = centos7.0 --cdrom = / var / lib / libvirt / boot / CentOS-7-x86_64-Minimal- 1810.iso --network = bridge = virbr0, model = virtio --graphics vnc - disk path = / var / lib / libvirt / images / centos7.qcow2, size = 8, bus = virtio, format = qcow2 --boot userserial = on

It works with this:

WARNING Charts requested but DISPLAY is not set. Do not run virt-viewer.
WARNING No console to launch for the guest, default --wait -1

Start the installation ...
Allocation of & centos7.qcow2 & # 39; | 8.0 GB 00:00:00
The installation of the domain is still in progress. Waiting for the end of the installation.

Then I block, I can press ctrl-c and get my prompt, make a list virsh shows that it is running, but do a virsh domifaddr kosmos-icc shows nothing (the other that is generic and which was installed with the mistletoe) shows the IP address (which I can ssh in) of the machine.

So, I do not know why it does not finish or if it is silent and if I miss a switch. I assumed virbr0 was the way to go with the network. So we must continue to learn virsh / virt and see if I can via a command line install a virtual machine and then replicate the process on an untested machine.

The installation logs in /root/.cache/virt-manager do not show any real errors … in fact, they indicate:

[Wed, 19 Jun 2019 11:28:38 virt-install 351]    DEBUG (guest: 441) XML retrieved from the libvirt object:

... the xml ...

[Wed, 19 Jun 2019 11:28:38 virt-install 351] DEBUG (virt-install: 744) State of the domain after installation: 1

This state after installation is the last line before the log shows the interruption of my ctrl-c keyboard.

installation – Clone project: script execution refusal

I just cloned an empty Drupal 8 project locally. Initially I went into the web folder and used

php -S localhost: 8000

With this virtualization, a 404 error occurs every time I enter the root rule "Edit".
To solve the problem, I created a vhost configuration:

DocumentRoot / home / user / Projects / platform / site / app / web
   Allow everyone
Order allow, refuse
Allow everyone
Require all granted

With this configuration, the routes are presented correctly, but a new error occurs. In all pages, the css and js files are not loaded. This error appears on the js console:

Refused to run the script from & # 39; http: //' because its MIME type ("text / html") is not executable and strict MIME type checking is enabled.

I have tried to edit the php.ini file like this: default_mimetype = "", restart apache and delete the cache but no results.

In both installations, the php.ini file used is the same.

How can I solve it?

Execution Analysis – How to Apply the AC-3 Algorithm (Bow 3 Consistency) to the N-Queen Problem?

I build N-Queen Solver with java.
I've confused with the AC-3 algorithm.
I've heard that the AC-3 can be applied with the algorithm back and forth before treatment and during the searchThe latter is called the MAC-3 algorithm.

I have reached the MAC-3 algorithm.

But, I observed that the AC-3 with the algorithm back and forth before treatment In addition, it consumes more time than the naive backtracking algorithm.

If so, does it make sense to combine the AC-3 algorithm with the downstream verification algorithm?
Are there other ways to use the AC-3 algorithm that is effective?

The information management policy does not trigger the execution of the workflow – Sharepoint 2016

I'm trying to run a workflow, triggered by an information strategy and that just does not work. I've set up minimal test cases and they do not work either. Here is what I've tried / tested so far.

  1. The information management policy is set to run daily – and ends with the status 'successful'.
  2. The expiration strategy is configured similarly to run daily, about an hour after the success of the IMP.

I've also tested it with Run Now.

I have set up two lists for testing.

The IMP 1 test has an information management policy associated with the elements.

Snapshot of politics

It is set to fire at creation + 1 day and send me an e-mail, then repeat it every other day.

Imp Test 2 is identical except that the policy is associated with a test content type (IMP test) rather than a list item.


  • The item-based list does not matter – The expiration date never seems to be populated with a date and the workflow is not triggered

  • The list based on the content types gets a defined expiration date, but again, the workflow does not run.

It's been two weeks since I hit my head against the ground for this one. Ideas?

python 3.x – Can you change the description in full execution of a progress bar?

I have a progress bar and wanted to know if the description can be changed once it is running.
The code I have is the following:

from ipywidgets, import IntProgress
from the IPython.display import display
import time

test = IntProgress (min = 0, max = 10, description = "Loading:", bar_style = "warning")
display (test)
account = 0
leaves = 3
chapters = 5

for b in the interval (chapters):
for i in the range (sheets):
test.value + = 1
print ("Chapter:" + str (b + 1) + "Sheet:" + str (i + 1))
time.sleep (0.1)
account + = 1


Loading: :::::::::::::::::::::::::
Chapter: 1 Sheet: 1
Chapter: 1 Sheet: 2
Chapter: 1 Sheet: 3
Chapter: 2 Sheet: 1
Chapter: 2 Sheet: 2
Chapter: 2 Sheet: 3
Chapter: 3 Sheet: 1
Chapter: 3 Sheet: 2
Chapter: 3 Sheet: 3
Chapter: 4 Sheet: 1
Chapter: 4 Sheet: 2
Chapter: 4 Sheet: 3
Chapter: 5 Sheet: 1
Chapter: 5 Sheet: 2
Chapter: 5 Sheet: 3

My idea would be to show:

Loading Sheet 1 of Chapter 1 ::::::::::::: 

"and so iterate every page and every chapter".

sublimetext – How to get rid of Python Launcher icon with each execution of a script?

With Sublime Text 2 or Atom (maybe other editors), when running a simple python script, the Python Launcher icon (rocket) is displayed every time I run the code. The icons are added in the dock (see image), and I have to close them individually. Is there a configuration to avoid this behavior?

Edit: With Sublime Text, for example, cmd-B is the default shortcut that I use to run a script. I did not find this problem addressed in the Atom or ST documentation (nor in stackexchange).

Future application: automatic execution with the help of options

I have to run once a month, can you give future automatic execution "x" the time if I set in project> option.

Delete the cache of the target URL
Delete the target URL history
Delete unused accounts