Configuration error: Error: Could not alloc node id at 172.xx.xx.2 port 1186: Connection done from wrong host ip 172.xx.x.4

Im running in datanode 2 ndb_restorebut it get me error.

[root@a5aabaf20dc3 /]# ndb_restore --ndb-connectstring=172.xx.xx.2:1186 \ >                    --nodeid=2 --backupid=1 \ >                    --backup_path=/var/lib/mysql-cluster/BACKUP/BACKUP-1 \ >                    --restore_data --disable-indexes Nodeid = 2 Backup Id = 1 backup path = /var/lib/mysql-cluster/BACKUP/BACKUP-1 Configuration error: Error: Could not alloc node id at 172.xx.xx.2 port 1186: Connection done from wrong host ip 172.xx.x.4. 

also tried --ndb-connectstring "nodeid=2,172.xx.xx.2:1186" and with out port as well as with out --ndb-connectstring at all. nothing made it better

Cluster Configuration --------------------- [ndbd(NDB)] 4 node(s) id=2    @172.xx.xx.4  (mysql-8.0.21 ndb-8.0.21, Nodegroup: 0, *) id=3    @172.xx.xx.3  (mysql-8.0.21 ndb-8.0.21, Nodegroup: 0) id=4    @172.xx.xx.8  (mysql-8.0.21 ndb-8.0.21, Nodegroup: 1) id=5    @172.xx.x.9  (mysql-8.0.21 ndb-8.0.21, Nodegroup: 1)  [ndb_mgmd(MGM)] 1 node(s) id=1    @172.xx.xx.2  (mysql-8.0.21 ndb-8.0.21)  [mysqld(API)]   2 node(s) id=101  @172.xx.xx.5  (mysql-8.0.21 ndb-8.0.21) id=102 (@172.xx.xx.6  (mysql-8.0.21 ndb-8.0.21) 

anyone have idea whats wrong?

What has Mordenkainen done to maintain the balance?

I understand that Mordenkainen has become a wizard who strives to ‘maintain the balance’. My understanding of which involves ensuring that neither good, evil, law or chaos become too strong (though my interest lies in his specific view on balance, so if I am wrong in the above then please correct me).

I have found his various adventures which seem to mostly be when he was still a player character and thus before he decided that the balance was his calling, but I can’t find anything that actually says what he has done, or does to maintain that balance. All I can find is vague things like ‘keeps the blood war going’ and I can’t even find proper sources for that (this is the most complete source, but how accurate any of it is I don’t know).

From official material, including handbooks, films, computer games, quotes, interviews, notebooks stolen from the bins beside the WoTC office, or any other sources; what actions has Mordenkainen actually undertaken to help maintain ‘the balance’?

I am looking for answers that can prove the reason for an action was specifically to maintain the balance, not just a list of things he might have done where the motivation is unknown or unclear.

How do I name the thing that is done in the FROM part of the query?

So, I have recently started studying data bases in Uni, MySQL. I am practicing some queries with different stuff that the professor gave us.

One of the questions i have found is as follows:

Show the Name and Wage of the employee supervisor and the average wage of the employees that he is supervising. Arrange the data by name and the average wage in an ascending order. (I’m working on the newest version of the MySQL Workbench with the accompanying local host server)

There is only one table, the employee table. With a foreign key supervisor ID that references the employee IDs which are primary keys.

This is the solution to the query:

SELECT SUP.name, SUP.wage, AVG(EMP.wage) AS AVG_WAGE FROM employee EMP, employee SUP WHERE SUP.employee_ID = EMP.supervisor_ID GROUP BY SUP.name ORDER BY AVG(EMP.wage) ASC; 

I’m wondering, what is the name of the thing that he used here where he like… split the employee table into 2 virtual tables for the sake of the query?

I didn’t know this is possible at first so I was doing this:

SELECT name, wage, AVG(wage) AS AVG_WAGE FROM employee WHERE emp_ID IN (SELECT sup_ID FROM employee) GROUP BY name, wage, sup_ID IN (SELECT emp_ID FROM employee) ORDER BY AVG(wage); 

This shows the supervisors and their wages but doesn’t show the average wage of the employees that each supervisor supervises and just displays the wage of the supervisors again with a bunch of zeroes at the end.

Thank you!

I’m sorry if I’m not very clear in my wording since I’m not studying databases in English and English is not my first language. Thus it isn’t easy to find info on google about a bit specific things like this where I don’t know how to word questions.

Who can use spell-scrolls done by a bard using his ‘Magic Secrets’ ability?

When a bard learns a Magic Secrets, it counts as a bard-spell. Of note, should they abandon any Secret-spell at later level, he can only replace it with one from the BARD list. Lord Crawford actually did rule-rulings on this, so this is clear: replacing one’s Magic Secrets is easily done, it is just somewhat unwise to do so.

Say a bard picks Find Familiar as a spell. Massive boon! For dirt cheap he can print them off as scrolls. Now who can use the scroll? Three possibilities:

  1. This is a wizard spell on the wizard list – designed for wizards. Clearly only a wizard can use a wizard spell on the wizard list designed specifically for wizarding ways, right? So obvious: a wizard buying this spell can transcribe it into their book (with a good roll on a good day) – or simply use it and get themselves a familiar.

  2. Any Magic Secrets spell, no matter which list it once came from, counts as a BARD spell for all intents and purposes (i.e. ‘learning, casting and recording’). Should a bard make such a scroll, any other bard can use it. A ‘secret’ no longer! But to be clear, if it IS a ‘bard’ spell, only bards could use this magic item. A wizard would not ever figure it out. A druid would have no chance. A barbarian would accidentally use this scroll as a fire-starter.

  3. You can use any scroll if the spell is on your class list. So almost anyone can use that Charm Person scroll. Thus, the bard writing such a scroll cannot even use it themselves. Imagine the ignominy with scribing any Magic Secret: ‘I cannot read any of what i just wrote down.’


The third one sounds the least fun and least logical, so probably that one. If this is a repeat of a previous question, please allow me to delete this / i did search before posting.

My thanks.

What is the most damage that can be done in one round on your turn?

I was surprised that this question has not been asked.

I want to find out what the most damage that can be done in a single round?

Here are the rules.

  • Rules from Official Hardcover books only.
  • Any official playable race can be used.
  • No optional rules, other than those listed here.
  • Multiclassing and feats are permitted.
  • Characters can be up to LV 20
  • Standard point buy for stats.
  • No Magic items.
  • No infinite loops we are not trying to break the system. We are trying to find the maximum damage in a reasonable setting.
  • Consistent effects only. Random elements like wild magic cannot be used.
  • Epic Boons are permitted if you use the Aberrant Dragonmark feat.. You can choose the boon you would like.
  • No outside help. Permanent summoned creatures are permitted, and considered to have already been summoned.(find steed, familiar, homunculous.. etc..) Their damage can be added to yours in the calculation.
  • Assume one average target with no unusual defenses.
  • All attacks hit.
  • All saves are passed.
  • Polymorph is allowed, but I suspect there are better methods.
  • Any attack or combination of spells and attacks can be used provided you are following the rules.
  • Include the Maximum rolled damage as well as the average damage, where average is calculated using min+maximum /2 to calculate it.

I understand that a lot of you don’t like optimization questions. But try to leave me a comment before you give me a negative vote. I will address the issue and fix it(If possible).

This post is for people who do enjoy the theory craft and challenge. I think it will be interesting to find out what the damage limit is.

Tor Browser: Could a website or ISP detect modification to DOM done by users if Javascript is disabled?

I have Tor Browser (which is basically Firefox ESR) on "Safest" setting (Javascript disabled). We’re generally scolded about using extensions in it, as they can alter web traffic patterns to or from your browser, adding another fingerprinting vector by distinguishing you from other Tor Browser users.

If JS is turned off even in vanilla Firefox, and I apply modifications to the DOM (like CSS mods, zooming in etc.) after the website has finished loading, I can’t see how a website or ISP could detect what the user is doing in the DOM.

I know if you, for example, hide an element in CSS before it is fully loaded (such as the sidebar), the browser may skip downloading resources (such as icons) associated with the element. This would distinguish your web traffic patterns from other users. That’s why I wait till the page is fully loaded. I’m also careful to not trigger CSS media queries which can be set up to connect to a remote URL if triggered (or remove them first if they will be triggered).

I think the above should be enough to avoid distinguishing myself by my web traffic. Do you see any way I could be distinguished with only CSS & HTML?

What is the most damage that can be done in a single melee attack without features that double damage?

I’ve been trying to come up with builds that maximise burst damage recently, but I’m not much of an optimiser, usually preferring themes and/or roleplay.

I’d come up with something along the lines of a Paladin 3/Warlock 5/Bard 12, which could combine Eldritch Smite, Divine Smite and Psychic Blades (assuming College of Whispers) for a total of 9d8+8d6+7 damage (assuming maxed out CHA, Hexblade warlock to use that on the weapon, Dueling Fighting Style from Paladin, a maul as the Pact Weapon, and that Hex had been cast beforehand). This is before I started considering races and other aspects, then that’s when I started to feel out of my depth…

I looked up this question for inspiration: What is the most damage that can be done in a single melee attack?

However, I am disappointed with how many of the answers rely on an Assassin rogue’s Death Strike and/or a Grave Domain cleric’s Path to the Grave feature to double the damage; I mean, don’t get me wrong, they’re good answers, and I’ve even upvoted some of them, but they’re not what I’m looking for today. Given that I do not want to use those routes of doubling damage or getting reliable critical hits via Assassinate, I thought I’d ask the question again, but with a few extra restrictions.

So, what is the most damage that can be done in a single melee attack, within the following restrictions:

  • No features that flat out double damage, so the aforementioned Assassin rogue’s Death Strike and Grave Domain cleric’s Path to the Grave features are considered invalid for this build.
  • Nothing that relies on critical hits, so although it might be interesting to know what the damage would be on a natural 20 as an aside, I otherwise don’t want the build to optimise for critical hits, such as an Assassin rogue’s Assassinate or a Champion fighter’s Improved Critical; hence assume the hit is not a critical hit.
  • No Unearthed Arcana or third party or homebrew; only official 5e material.
  • Multiclassing, feats and Epic Boons are allowed.
  • No help from allies, this should be the damage that can be done by yourself.
  • No polymorph/wild shape, the damage must be by a playable race in its true form.
  • Any class, race, feat, spell or magic item is allowed so long as they are from official 5e material.
  • Assume that the build is for a 20th level character.
  • You can assume infinite convenient luck on things like Wild Magic, but nothing that can be used in an infinite loop to create infinite damage, as that defeats the purpose from my point of view.
  • You can have a round to prepare, so if you needed to cast a spell on the previous turn to set yourself up, that’s fine, so long as it doesn’t have a "flat out double damage" effect like Death Strike, Path to the Grave, etc.

Certificate validation details. How it’s done? [closed]

I’ve read this post where it says:

"…an attacker can still take the whole signed content and present it to you but won’t be able to change any details or the signature won’t match."

  1. How does the browser validate the details of a certificate and see its content like domain name, etc.?
  2. If a MITM wants to change anything, he would need to decrypt the cert, which is impossible, or simply change what he wants but then fail at the browser because, as mentioned above, the signature won’t match?