## Can a server wide setting of ‘Max Degree of Parallelism’ = 1 cause Brent Ozar’s sp_BlitzCache to flag execution plan as ‘forced-serialization’?

I am using Brent Ozar’s sp_BlitzCache store procedure and I’m attempting to nail down why it is reporting:

“Something in your plan is forcing a serial query. Further
investigation is needed if this is not by design.”

Upon investigation I found that the server configuration has set:

``````'Max Degree of Parallelism = 1'
``````

(That is on my laundry list to configure correctly. It is a hold over from days of ignorance.)

Is that setting the cause of Brent to report forced serialization?

## Google-Sheets : How to flag duplicate items within the same ‘group’?

I have this table :

So i have the days column and fruit column. There’s grouping based on days : Monday, Tuesday , Wednesday etc indicated by that grey and light blue color to separate each day. The fruits are grouped by the days.

I want make a single conditional formatting (for J1:J range) to flag if there’s the same fruit on the same day. For example that red font color : 2 apple on Tuesday and 2 banana on Thursday.

How can i do this ?

Thanks

## rt.representation theory – Are there cases in which the Weyl group _does_ act on the flag variety/springer fiber?

In nearly every reference on the classical springer correspondence (for example Chriss/Ginzburg’s book on Complex Geometry) it is stated that the action of the Weyl Group on the homology of the springer fiber is not induced by an action of the Weyl group on the fiber itself. But I couldn’t find any reference or general statement that would make this precise (and I’m just learning about geometric representation theory so I don’t have any good intuition/working knowledge).

For concreteness (and I think this should be a simpler case), consider the springer fiber over zero — then $$mathcal{B}_0 = mathcal{B} = G/B$$ is the flag varitey (where $$B$$ is a Borel subalgebra). Now there is an action of the Weyl group $$W$$ on the quotient $$G/T$$ (where $$Tsubseteq B$$ is a maximal torus, which allows to write $$W = N_G(T)/T$$). Now in Yun’s notes, (1.5.4), he writes that the map $$G/Tto G/B$$ is an “affine space bundle”, that this implies that the their homologies are isomorphic and that under this isomorphism, the action of $$W$$ on $$H(G/T)$$ gives the springer action of $$W$$ on $$H(mathcal{B})$$ (I couldn’t find a reference for that though). But I don’t see why there should be no way to use this projection to define an action of $$W$$ on $$mathcal{B}$$.
Also, in “Schubert cells and cohomology of the spaces $$G/P$$” (1973), Bernstein Gelfand and Gelfand construct in chapter 5 a correspondence that gives rise to the springer action. I was hoping that this very explicit construction in the paper would shed some more light on what’s going on, but I haven’t been able to do that myself.

Any help, and also references, are really appreciated.

## SharePoint Online: How to flag file when file was Downloaded by UI/UX

I have research a lot about this theme (Microsoft Docs, Forums etc.), but I cannot encounter something to help me: I need some UI/UX resource like a flag or check to mark all files was Downloaded. SharePoint List/Library contains some hide column, metadata or native resource that shows if File was Downloaded?

Please, may someone help me with this?

## linux – Can’t connect to a multiuser screen session using * flag

I am currently trying to set up a multi user screen environment and am having some trouble adding users.

According to screens man page a single * can be used instead of a specific username to allow access for all users, however this doesn’t seem to be working.

Change permissions for a comma separated list of users. Permission bits are represented as ‘r’, ‘w’ and ‘x’. Prefixing ‘+’ grants the permission, ‘-’ removes it. The third parameter is a comma separated list of commands or windows (specified either by number or title). The special list ‘#’ refers to all windows, ‘?’ to all commands. If usernames consists of a single ‘*’, all known users are affected. A command can be executed when the user has the ‘x’ bit for it. The user can type input to a window when he has its ‘w’ bit set and no other user obtains a writelock for this window. Other bits are currently ignored. To withdraw the writelock from another user in e.g. window 2: ‘aclchg username -w+w 2’. To allow read-only access to the session: ‘aclchg username -w “#”’. As soon as a user’s name is known to screen, he can attach to the session and (per default) has full permissions for all command and windows. Execution permission for the acl commands, at and others should also be removed or the user may be able to regain write permission. Chacl is a synonym to aclchg. Multi-user mode only.

Currently creating a session, turning on multiuser, and executing the following screen command seems not to return any type of error or indication that it shouldn’t work:

``````multiuser on
aclchg * +rxw "#?"
``````

However, when attempting to attach from a different user the standard “Access denied” error persists

When providing a specific username it seems to work as it should though…

## bitcoin core – BTC – Block Index – Reading the flag values in Level DB

Following the article I tried reading the flag value for txindex in the Block Index database but was not able to fetch the values. I tried fetching value for all below but its NULL always. Am I doing something wrong?

``````    private readonly byte() TRANSACTIONINDEX_ENABLED = new byte() { 70, 8, 116, 120, 105, 110, 100, 101, 120, 1 }; // F8txindex
private readonly byte() TRANSACTIONINDEX_ENABLED1 = new byte() { 70, 7, 116, 120, 105, 110, 100, 101, 120, 1 }; // F7txindex
private readonly byte() TRANSACTIONINDEX_ENABLED2 = new byte() { 70, 7, 1, 120, 101, 100, 110, 105, 120, 116 }; // F7txindex little endian
private readonly byte() TRANSACTIONINDEX_ENABLED21 = new byte() { 70, 7, 120, 101, 100, 110, 105, 120, 116, 1 }; // F7txindex little endian
private readonly byte() TRANSACTIONINDEX_ENABLED3 = new byte() { 70, 8, 116, 120, 105, 110, 100, 101, 120, 1 }; // F8txindex little endian
private readonly byte() TRANSACTIONINDEX_ENABLED31 = new byte() { 70, 8, 120, 101, 100, 110, 105, 120, 116, 1 }; // F8txindex little endian
private readonly byte() TRANSACTIONINDEX_DISABLED = new byte() { 70, 8, 116, 120, 105, 110, 100, 101, 120, 0 }; // F8txindex
private readonly byte() TRANSACTIONINDEX_DISABLED1 = new byte() { 70, 7, 116, 120, 105, 110, 100, 101, 120, 0 }; // F7txindex
private readonly byte() TRANSACTIONINDEX_DISABLED2 = new byte() { 70, 7, 0, 120, 101, 100, 110, 105, 120, 116 }; // F7txindex little endian
private readonly byte() TRANSACTIONINDEX_DISABLED21 = new byte() { 70, 7, 120, 101, 100, 110, 105, 120, 116, 0 }; // F7txindex little endian
private readonly byte() TRANSACTIONINDEX_DISABLED3 = new byte() { 70, 8, 116, 120, 105, 110, 100, 101, 120, 0 }; // F8txindex little endian
private readonly byte() TRANSACTIONINDEX_DISABLED31 = new byte() { 70, 8, 120, 101, 100, 110, 105, 120, 116, 0 }; // F8txindex little endian
``````

Additionally, how to fetch the mapping between data fetched from block index and the bat file where details of the block are. I assumed that Block Index record will have details of the file (blk000????.dat) where to look for the block but it doesnt have anything

## 8 – Flag and message (subscribe) show wsod with error LogicException at line 176

I installed flag and the message stack, configured it and now when opening /user/register i get

LogicException: An anonymous user must be identified by session ID. in DrupalflagFlagService->getAllEntityFlaggings() (line 176 of modules/contrib/flag/src/FlagService.php).

What does this tell me?
Is this working somewhere else?
Is this an issue with flag or message subscribe?
What can i do?

## 8 – How to adapt the appearance of Modal Flag to Bootstrap 4?

My website is with Drupal 8 and the Barrio theme (Bootstrap 4).

I have a problem with the Flag module and the Modal windows.

This is what a Modal window should look like :

Here is what a Modal window looks like with the Flag module (the same problem appears on all contrib modules and core modals) :

The theme developer seems unwilling to correct this problem :

https://www.drupal.org/project/bootstrap_barrio/issues/3205069

How to adapt the appearance of Modal Flag to Bootstrap 4 ?

## Country flag

TheProphet submitted a new resource:

Country flag – Shows a country flag in the message user info block.

Description:

Shows a country flag in the message user info block.

(Example of country flag)

(Example of Privacy page)

(IMG…