I don't know a lot of things for server, but my provider sent me a message and it says to add a password to memcached.
I believe that is on the server.
How / Where can I check it? Or how to check if memcached is running in SSH?
watch 'php -r '"'"'$m=new Memcache;$m->connect("127.0.0.1", 11211);print_r($m->getstats());'"'"
Related
For reasons I don't understand, rsync does not work for me since today.
I tried to fix the problem by following steps described here : https://askubuntu.com/questions/628102/15-04-rsync-connection-refused
but it did not work...
I am working on a laptop with Ubuntu 16.04 as OS, and have a wired ethernet connection.
I made several queries on the UCSC server yesterday, so maybe their server blocks my connection ?
Example of a query I would like to do :
rsync -a -P rsync://hgdownload.cse.ucsc.edu/goldenPath/hg38/database/cytoBand.txt.gz ./
Here is the Error message :
rsync: failed to connect to hgdownload.cse.ucsc.edu (128.114.119.163): Connection refused (111)
rsync error: error in socket IO (code 10) at clientserver.c(128) [Receiver=3.1.1]
Tell me what you think and if there is any solution to make it work again.
Thank you in advance for your help.
Edit:
UCSC answered me : no problem on their side. The problem definitely come from me. Still looking for a solution.
It looks like the rsync daemon is not running on the remote host, or perhaps it is running on a non-standard port (default is 873).
It's also possible that connections are being blocked by a firewall. Were your earlier successful connections made from the same location, or are you now testing from elsewhere?
As a workaround you can access the files via HTTP using any browser or HTTP command line tools such as curl, wget et. al. Either of these should work:
$ curl http://hgdownload.cse.ucsc.edu/goldenPath/hg38/database/cytoBand.txt.gz -o cytoBand.txt.gz
$ wget http://hgdownload.cse.ucsc.edu/goldenPath/hg38/database/cytoBand.txt.gz
Since rsync is still not working (I tweet to UCSC to ask about it),
I decided to use the tools curl and wget that mhawke advised me, but using the ftp adresses instead of http (slower) :
curl ftp://hgdownload.cse.ucsc.edu/goldenPath/hg38/database/cytoBand.txt.gz -o cytoBand.txt.gz
wget http://hgdownload.cse.ucsc.edu/goldenPath/hg38/database/cytoBand.txt.gz
If anyone has a solution for the rsync problem, or any informations saying that the problem could come from the UCSC server, I would be thankful.
Cheers !
Edit:
I received an answer from UCSC : no problem about rsync on the side of the UCSC server. So the problem definitely comes from me. I tried on 3 different computers on different places, all running under Ubuntu 16.04. I am still looking for a solution.
Thanks to a mail answer from a guy working at UCSC:
I tried the same command line but on the mirror site : ftp://hgdownload-sd.cse.ucsc.edu.
which gave this command line :
rsync -a -P rsync://hgdownload-sd.cse.ucsc.edu/goldenPath/hg38/database/cytoBand.txt.gz ./
I tried it. It worked.
And here comes the best part: in my case I try the command line that did not work... and it works again:
rsync -a -P rsync://hgdownload.cse.ucsc.edu/goldenPath/hg38/database/cytoBand.txt.gz ./
So I did not had any explanations on where does the problem came from. But problem solved!
I explain my problem:
I used backuppc for remote some database on an other server and for saving my data I used rsync which uses ssh. On my remote server I put the ssh key of backuppc and it worked.
But I wanted to secure this connexion, so I used rrsync (a perl script for restrict the access), for a "read-only" access with copy.
So now, in the remote server I have in root/ssh/authorized_keys
command="/usr/local/bin/rrsync -ro /" ssh-rsa
But when I try to connect I have this message:
/usr/local/bin/rrsync: Not invoked via sshd
It's a message from the perl script, but I don't know what it means or what can I do for this to work.
As far as I can tell, this message appears when you try to access the server with the restricted key without using rsync. It may be possible to edit the script to allow other programs, but I'm not skilled enough to attempt that.
I am currently deploying to Digital Ocean using Meteor Up. If I don't specify a MONGO_URL in the mup.json, can I get the value from the command line while the website is running, i.e. I don't want to shutdown the site?
If I go to the app directory and run meteor mongo --url, I get the following error:
mongo: Meteor isn't running a local MongoDB server.
This command only works while Meteor is running your application
locally. Start your application first. (This error will also occur if
you asked Meteor to use a different MongoDB server with $MONGO_URL when
you ran your application.)
If you're trying to connect to the database of an app you deployed
with 'meteor deploy', specify your site's name with this command.
Even if I run the app from the app directory, it will only give the localhost MONGO_URL. I need the MONGO_URL for the deployed app.
I have also taken a look at a similar question as suggested by some of the answers. I disagree that it is "impossible" to get the MONGO_URL without some other program running on the server. It's not as if we are defying the laws of physics here, folks. Fundamentally, there should be a way to access it. Just because no one has yet figured it out doesn't mean it is impossible.
meteor mongo --url should return the URL.
Try opening another shell in the app directory and running that command.
Meteor Up packages your app in production mode with meteor build so that it runs via node rather than the meteor command line interface. Among other things, this means meteor foo won't work on the remote server (at least not by default). So what you're really looking for is a way to access mongo itself remotely.
I recently set up mongo on an AWS EC2 instance and listed some lessons learned here: https://stackoverflow.com/a/28846703/2669596. Some details of how you do it are going to be different on Digital Ocean, but these are the main things you have to take care of once mongo itself is installed:
Public IP/DNS Address: This is probably fine already since you can deploy to the server.
Port Security Rules: You need to make sure port 27017 is open for TCP access, at least from your IP address. MongoDB also has an http interface you can set up; if you want to use that you'll need to open 28017 as well.
/etc/mongod.conf (file location may differ depending on Linux flavor):
Uncomment port=27017 to make sure you have the default port (I don't think this is actually necessary, but it made me feel better and it's good to know where to change the default port...).
Comment out bind_ip=127.0.0.1 in order to listen to external interfaces (e.g. remote connections).
Uncomment httpinterface=true if you want to use the http interface.
You may have to restart the mongod host via sudo service mongod restart. That's a problem if you can't have downtime, but I don't know of a way around that if you change the config file.
Create User: You need to create an admin and/or user to access the database remotely.
Once you've done all of that, you should be able to access the database from your local machine (assuming you have the mongo client installed locally) by running
mongo server.url.com:27017/mup-app-name -u username -p
where server.url.com is the URL or IP address of your remote server, mup-app-name is the appName parameter from your mup.json file, username is the user you created to access the database, and you'll be prompted for that user's password after you run the command (or you could put it after -p on the same line, depending on the password).
There may also be a way to do this by setting up nginx to reverse-proxy 127.0.0.1:27017 on your remote server, but I've never done it and that's just me speculating.
I tried today to connect to MySQL server and saw that I did'nt have any mysqld.sock anymore, nowhere.
I tried several ways to get it back, but unsuccessfull. I tried to execut a
./mysqld.start in /etc/init.d, but it's also missing.
Should I reinstall mysql, or is there a way to get a socket back ?
try using following command
service mysql start
This will work.
#Nueva, if that doesn't work, reboot the system. I just had an Ubuntu build on EC2 lose its mysqld.sock file, and a simple reboot solved the problem.
Failing that, I've also heard that forcing the connection via tcp instead of localhost has worked for some people. I tried that, but got nothing.
I am new to kony, Does anyone know how to restart the memcached server and location of start and stop files ? please help.
thanks
If you server running in Linux server use following comment
%KMAP_SERVER_HOME%\memcached\memcached -p 21201
if your server in windows
double click %KMAP_SERVER_HOME%\memcached\memcached.exe
Please make sure that your middle ware is memcache enabled.
to check your memcache status use following Linux comment
echo status | nc 21201