I have implemented a javascript script for my mongo database. This script is called getMetrics.js and I am able to execute it by running: mongo getMetrics.js from my computer.
Now I want to automatically execute that script one time per day. To do so, I have created a Heroku app and I added to it the scheduler add-on (https://devcenter.heroku.com/articles/scheduler).
My main problem is that in order to be run, my task will execute the command "mongo getMetrics.js" and it will failed because I don't have mongo command installed in my Heroku app.
How can I run this script from Heroku?
Thanks a lot for your help.
I did the below in a similar case:
Download mongodb for linux https://www.mongodb.com/download-center#community
The bin folder contains the mongo binary
Make this binary available in your Heroku instance (e.g. If you have your Heroku configured with your git repo, then checkin this binary along side your script
[Make sure the folder you are keeping this binary is in the path, safe path will be inside /bin]
Related
I got databse with name "test" in mongoatlas.
I installed mongodb with
mongodb-windows-x86_64-4.4.1-signed.msi
I run this command and it does not shows my test db. I'm trying to make backup my db
show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
I watched tutorial to how to backup&restore in mongodb. So I run the command
mongodump
It says
'mongodump' is not recognized as an internal or external command,
operable program or batch file.
but I can run mongo and mongod command. I gave a path to run mongodb in cmd to environment variables
Also they say in the docs use mongodump command in cmd. I tryed it with administrator mode and it still gives same think.
So how can I backup& restore dbs. Thank you
mongodump is part of the mongo database tools, these tools are not automatically installed when your install certain Mongo server bundles.
As in your case, your cmd line does not recognise this command because it was never installed on your machine.
Follow the instructions here in order to install it.
Access the MongoDB Download Center
Select your Platform from the dropdown menu, then select the following Package for your platform:
Once downloaded, unpack the archive and copy the tools to a location on your hard drive.
You will have to set the MongoDB install path in your Path environment variables
For eg :
My mongoDB is installed at C:\Program Files\MongoDB\Server\4.0\bin
In environment variables i should have,
Also make sure you have installed mongodb properly. You should have following set of exe/files
I would like to find out how to connect to an external MongoDB instance in Meteor.
I have added this environment
Meteor.startup(function () {
process.env.MONGO_URL = 'mongodb://[UN]:PW]#[host]:[port]/meteorTest'
});
but still the data is coming from the local database.
I want to move all the collections from my local db to this external db. I read all the tutorials, its all telling me to setup this evn variable but nothing really working. How do I test whether its connected or not?
In my own experience; I have needed to set the environment variable before starting the meteorjs server app. To do this you will need to pass the environment variable on the command-line as you invoke meteor or preset the environment for the profile that is running the meteor app on your system.
So you would start your app with this kind of a command:
MONGO_URL='mongodb://user:password#remote.domain.com:12345/' meteor
You should also make sure that the mongodb is reachable and that your user credentials are correct! I am assuming you are trying to run meteor on your local machine using a remote mongodb instance.
On Windows
You will have to create a batch file in your meteor application folder to invoke the environment variable. There is an example of this here: https://stackoverflow.com/a/29833177/1997579
I don't like to use big repeating command and I was searching for a solution where I will be setting a variable embedded with something so every time I start my meteor app; the MONGO_URL will set to environment automatically. So this what I did:
In the package.json file I replaced the start parameter as below:
"scripts": {
"start": "MONGO_URL=mongodb://username:password#host_url:portnumber/dbname meteor run"
},
Now every time I want to run my app; I run npm start instead of meteor or meteor run
Note: there is a disadvantage with that. Your db credentials will be exposed if you put your db credentials to package.json file and add this file to version control.
run it in command prompt:
"MONGO_URL=mongodb://<USER>:<PASSWORD>#<SERVER>:<PORT>/<DB> meteor"
or
save this url in run.sh file in project folder and run meteor
On windows, I set MONGO_URL in my system's environment variable and it worked fine for me.
I have created a new environment variable and it's value as MONGO_URL=mongodb://username:password#host_url:portnumber/dbname
And in path variable, I have added %MONGO_URL%
Then in meteor app root folder, I have run $meteor
I would like to find out how to connect to an external MongoDB instance in Meteor.
I have added this environment
Meteor.startup(function () {
process.env.MONGO_URL = 'mongodb://[UN]:PW]#[host]:[port]/meteorTest'
});
but still the data is coming from the local database.
I want to move all the collections from my local db to this external db. I read all the tutorials, its all telling me to setup this evn variable but nothing really working. How do I test whether its connected or not?
In my own experience; I have needed to set the environment variable before starting the meteorjs server app. To do this you will need to pass the environment variable on the command-line as you invoke meteor or preset the environment for the profile that is running the meteor app on your system.
So you would start your app with this kind of a command:
MONGO_URL='mongodb://user:password#remote.domain.com:12345/' meteor
You should also make sure that the mongodb is reachable and that your user credentials are correct! I am assuming you are trying to run meteor on your local machine using a remote mongodb instance.
On Windows
You will have to create a batch file in your meteor application folder to invoke the environment variable. There is an example of this here: https://stackoverflow.com/a/29833177/1997579
I don't like to use big repeating command and I was searching for a solution where I will be setting a variable embedded with something so every time I start my meteor app; the MONGO_URL will set to environment automatically. So this what I did:
In the package.json file I replaced the start parameter as below:
"scripts": {
"start": "MONGO_URL=mongodb://username:password#host_url:portnumber/dbname meteor run"
},
Now every time I want to run my app; I run npm start instead of meteor or meteor run
Note: there is a disadvantage with that. Your db credentials will be exposed if you put your db credentials to package.json file and add this file to version control.
run it in command prompt:
"MONGO_URL=mongodb://<USER>:<PASSWORD>#<SERVER>:<PORT>/<DB> meteor"
or
save this url in run.sh file in project folder and run meteor
On windows, I set MONGO_URL in my system's environment variable and it worked fine for me.
I have created a new environment variable and it's value as MONGO_URL=mongodb://username:password#host_url:portnumber/dbname
And in path variable, I have added %MONGO_URL%
Then in meteor app root folder, I have run $meteor
Does any one know how to migrate data from one instance of Neo4j to another. To be more precise, I want to know, how to move the data from one instance of Neo4j on my local machine to another on remote machine. Does any one have any idea about it.
I'm working on my windows machine with Eclipse and Embedded Neo4j . I need to transfer this data to remote Neo4j instance on a Centos machine. Please help me with this.
Not sure how to do it for "embedded neo4j db".
But for standalone and in case you have something like the command line tool "Putty" on your windows machine, this should work. Instead of $NEO4j_HOME you can also use the normal path without the env variable.
$NEO4J_HOME/bin/neo4j stop
cd $NEO4J_HOME/data
tar -cvf graph.db.tar graph.db
gzip graph.db.tar
scp -i ~/some_path/key_for_remote_server.pem ./graph.db.tar.gz username#your_remote_domeain.com:~/
ssh -i ~/some_path/key_for_remote_server.pem/ username#your_remote_domeain.com
On your remote server (at least this works for ubuntu):
Maybe you need to use "sudo" (prefix the commands with sudo).
mv ./graph.db.tar.gz /some_path/
cd /some_path/
gunzip graph.db.tar.gz
tar -xvf graph.db.tar
$NEO4J_HOME/bin/neo4j start
$NEO4J_HOME/bin/neo4j status
You can migrate the data by using the apoc procedure by running the below query in the cypher shell from where the data needs to be exported:
CALL apoc.export.cypher.all('myfilename.cypher');
This will download the file with cypher queries in the import folder
Go the database instance where the data needs to be imported and copy the file in the import folder. Run the below command using the cypher shell:
apoc.cypher.runFile("myfilename.cypher",{}) yield row, result;
For more advanced options follow the below links:
https://neo4j.com/docs/labs/apoc/current/export/cypher/
http://neo4j-contrib.github.io/neo4j-apoc-procedures/3.4/cypher-execution/run-cypher-scripts/
I found out the following workaround for copying the data from a server in the cluster to all others, after using the neo4j-import tool:
Stop all nodes.
On the new node/server, where you need your data to be copied, you have to create the database folder for that graph (in my case loadTest):
/neo4j-enterprise-3.1.0/data/databases/loadTest.db
Then, the source node/server that is holding the data, you have to copy here the neostore.id file to the destination server db folder (loadTest.db from the previous step).
Start all nodes. In the background neo4j will copy data from other cluster servers to the new node.
For embedded mode , you would just need to locate the graph neo4j-db folder location then zip and send it to the remote system.
In your code where you would have called graphdatabaseservice , you would have given the target location
Check if its relative path then the database might be in your project folder .
Now for running the db instance on browser , you will need to use the neo4j communty server and point it to the folder containing the index folder. So if your neo4j-db is located at $project/tmp/neo4j-db then you will give the file path till this folder(the index folder will be inside this folder)
Edit
The folder that will contain the schema and index folders needs to be zipped. You can upload and unzip the folder at a certain location using Putty on your standalone server. Then just change the org.neo4j.server.database.location in conf/neo4j-server.properties file.
hi I take backup of my heroku database using PGBackups but its provide me backup on there pre define places .now I wont to take that backup on my remote location folder on S3 or some other remote storage.
how can we do that periodically like every week or month it's own/automatically.
my app on Ruby on Rails help me to achieve this.
The latest backup is always available to you by entering heroku pgbackups:url. So, set up a cron job or the equivalent that fetches that URL once a week or once a day.
You could write a rake or Ruby script and call it with Heroku Scheduler (a free addon), or use a different remote machine to pull the backup, or do a shell script and:
curl -O `heroku pgbackups:url`
Here is a Gem that appears to do what you want: https://coderwall.com/p/w4wpvw