## mongodb – Error: read host {mode: "primary", could not find tags: [ {} ] } for set cluster0-shard-0:

any ideas on how to solve this problem:
I am trying to connect to the class atlas cluster. In the cmd shell, run the following command: mongo "mongodb: //cluster0-shard-00-00-jxeqq.mongodb.net: 27017, cluster0-shard-00-01-jxeqq.mongodb.net: 27017, cluster0-shard -00-02-jxeqq.mongodb.net:27017/test?replicaSet=Cluster0-shard-0 "–authenticationDatabase admin –ssl –username m001-student –password m001-mongodb-basics
then I get this error:

C: Users nzedginidze> mongo "mongodb: //cluster0-shard-00-00-jxeqq.mongodb.net: 27017, cluster0-shard-00-01-jxeqq.mongodb.net: 27017, cluster0-shard-00 -02-jxeqq.mongodb.net:27017/test?replicaSet=Cluster0-shard-0 "–authenticationDatabase admin –ssl –username m001-student –password m001-mongodb-basics
2019-10-15T11: 02: 01.915 + 0400 W CONTROL (Main) Option: SSL is outdated. Please use tls instead.
MongoDB shell version v4.2.0
Connect to: mongodb: //cluster0-shard-00-00-jxeqq.mongodb.net: 27017, cluster0-shard-00-01-jxeqq.mongodb.net: 27017, cluster0-shard-00-02-jxeqq .mongodb .net: 27017 / test? authSource = admin & compressors = disabled & gssapiServiceName = mongodb & replicaSet = Cluster0-shard-0
2019-10-15T11: 02: 02.095 + 0400 I NETWORK (js) Starting the new Replica Set Monitor for Cluster0-shard-0 / cluster0-shard-00-00-jxeqq.mongodb.net: 27017, cluster0-shard-00-01 -jxeqq.mongodb.net:27017, cluster0-shard-00-02-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 02.095 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-02-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 02.096 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connect to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 02.096 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-00-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 03.271 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 03.605 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 04.402 + 0400 I NETWORK (js) Successfully connected to cluster0-shard-00-00-jxeqq.mongodb.net:27017 (1 connections are now open to cluster0-shard-00-00-jxeqq mongodb.net:27017 with a timeout of 0 seconds)
2019-10-15T11: 02: 04.612 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 04.876 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 06.043 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 06.095 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connect to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 07.103 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 07.376 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connect to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 08.543 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 08.876 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 10.043 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the Cluster0-Shard-0 set could not be reached
2019-10-15T11: 02: 10.095 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connect to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 11.103 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary address for the Cluster0-shard-0 group could not be reached
2019-10-15T11: 02: 11.376 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 12.543 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 12.876 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connect to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 14.044 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the Cluster0-Shard-0 set could not be reached
2019-10-15T11: 02: 14.095 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connect to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 15.102 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 15.376 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 16.543 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 16.876 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 18.044 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the Cluster0-Shard-0 set could not be reached
2019-10-15T11: 02: 18.095 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 19.101 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the set Cluster0-Shard-0 could not be reached
2019-10-15T11: 02: 19.379 + 0400 I CONNPOOL (ReplicaSetMonitor TaskExecutor) Connecting to cluster0-shard-00-01-jxeqq.mongodb.net:27017
2019-10-15T11: 02: 20.546 + 0400 W NETWORK (ReplicaSetMonitor TaskExecutor) The primary value for the Cluster0-Shard-0 set could not be reached

*** It looks like this is a MongoDB Atlas cluster. Make sure your IP whitelist allows connections from your network.

2019-10-15T11: 02: 20.547 + 0400 E QUERY (js) Error: Read host {mode: "primary", Tags: ({})} for group Cluster0-shard-0 could not be found:
connect@src/mongo/shell/mongo.js: 341: 17
@ (Connect): 2: 6
2019-10-15T11: 02: 20.551 + 0400 F – (Main) Exception: Connection failed
2019-10-15T11: 02: 20.551 + 0400 E – (main) exit with code 1

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I get this error every time I log in (after a recent update to Catalonia). The installed version of FUSE is too old for the operating system. Please update your FUSE installation to a version that is compatible with the currently running version of macOS. Can not find it to uninstall it. I searched everywhere. PLEASE HELP!

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## amazon web services – Find the IP address of Spotfleet instances through Powershell

try to launch Spot instances from Spotfleet:

aws ec2 Request Spot Fleet – Spot Fleet Request Config File: //aws-spot6.json
below is json content
{
"SpotPrice": "0.06",
"TargetCapacity": 1,
"IamFleetRole": "arn: aws: iam :: 614786711942: role / aws-ec2-spot-fleet-tagging-role",
"LaunchSpecifications": [
{
"ImageId": "ami-0b86323be1672551f",
"KeyName": "amitpoc",
"Security Groups": [
{
Group ID: sg-0069a6368b0260ca9
}
]
"InstanceType": "t2.large",
"SubnetId": "subnet-03c112988598e6e7c",
"TagSpecifications": [
{
"ResourceType": "instance",
"Keywords": [
{
"Keystone"
"Value": "poc"
}
]
}
]

`````` }
``````

]
"Type": "maintain"
}

that happens right.
Now I want to find all spot instances that have been started with their private and public IP address in one file. This must be done in Windows via Powershell.

## Python – Find the next enemy

I am currently creating a 2D game in Python. I have to calculate the next enemy so the player knows which one to target. I have the following function to accomplish this task:

``````import math

def find_closest(character: tuple, enemies: list) -> (int, int):
"""
Finds the closest enemy in enemies

:param character: An (x, y) representing the position of the charactern
:param enemies: A list of tuples (x, y) that represent enemies

:return: A tuple (x, y) of the closest enemy
"""
closest_enemy = None
smallest_distance = 100_000_000 # Set to large number to ensure values can be less #
for enemy in enemies:
distance = math.sqrt(math.pow(character(0) - enemy(0), 2) + (math.pow(character(1) - enemy(1), 2)))
if distance < smallest_distance:
closest_enemy = (enemy(0), enemy(1))
smallest_distance = distance
return closest_enemy

if __name__ == "__main__":

# Test Case #

character = (5, 6)
enemies = ((1, 2), (3, 4), (7, 6), (11, 4))
closest = find_closest(character, enemies)
print(closest)
``````

I would like to know if there is a better way to do this. It's a simple feature, but I'm sure there's no built-in Python feature that can make it even shorter. I use tuples because, in my opinion, they are the best way to represent coordinates. All suggestions and / or improvements are welcome and welcome.

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I've seen some very good options for Graph Database on a server for .NET – namely Neo4J and OrientDB, which look very robust.

But I need one embedded Diagram database, which remains stored in a file on a hard disk, so I can easily port the data between .NET application instances.

Something like Sqlite or LiteDB, but instead as a graphics database.

I searched a lot with very little luck and found something essential. Can someone show me one?

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To edit:

The Node Search plugin adds the title to the rendered node. If the page title is the node name, it should be included in the search index:

NodeSearch :: updateIndex ():

``````  \$build = \$node_render->view(\$node, 'search_index', \$language->getId());
...
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\$build('search_title') = (
'#prefix' => '',
'#plain_text' => \$node->label(),
'#suffix' => '',
'#weight' => -1000
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\$text = \$this->renderer->renderPlain(\$build);
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