I am trying to create a script that informs the user about the status of the website, which uses WebSpeed. I can use wtbman to output the status of the transaction server, not a problem. But I want something that just tells us the status of the transaction server.
Is there a command that I can use to achieve that, instead of writing a program to parse the returned string for wtbman?
There's no built in approach like for instance Virtual System Tables.
Parsing the output of
wtbman -name <broker> -query
is your best bet. The output isn't very hard to decipher so you should be able to do it quite quick!
Two other commands to check are:
wtbman -name <broker> -agentdetail <pid>
This will go more into detail of a specific agent.
wtbman -name <broker> -listallprops
Lists all settings for the broker.
Related
I ran multiple queries but before saving them, the qpad crashed. However the q-port on which these queries were running (on my windows machine) is still open. I can recover the variables and functions by \v and \f respectively.
Is there a way to recover all the q statements I ran using qpad? I forgot to maintain a log file, hence I am trying to find a way to recover queries using q-port.
Thanks
Unfortunately there's no way to retrieve your old queries for the reasons Davis.Leong said. But if you can't/don't want to create a table on your server to save them, you can also check the log queries box in QPad settings:
Q > Settings > Editor > Log queries to "queries_date.log"
Now when you run queries, they will be written to this log file in the same directory as QPad.exe, along with the server and timestamp, like this:
/ 02/26/19 09:54:52 on `:localhost:1234:: from QPad1*
show `logthis
/ 02/26/19 10:03:03 on `:localhost:1234:: from QPad1*
a:10
Unfortunately I don't think there is a way to retrieve your command history. Others has already mentioned why so I will not go into that. You can easily maintain a log file in the future however:
When you start your server, adding the -l flag will allow you to define a path to a log file. Any commands sent to the server from the client will now be logged. For example
q ../log/logtest -l -p 5555
t:([]date:`date$();sym:`sym$();price:`float$())
will start a q process listening on 5555, logging any messages that cause the server to update. So if I open a handle to 5555 in another q session h:hopen `::5555
and
update table t
q)h"insert[`t](2000.01.01;`appl;102.3)"
,0
the server will have updated t like so
q)t
date sym price
---------------------
2000.01.01 appl 102.3
There will be a log file created which will show any commands sent to the server. NOTE however it will only log those commands that change the state of the server's data.
This log file can be reloaded in the event of a server crash using the same command as before.
The answer is no. qpad is the GUI that interact with the q process. The reason why you can retrieve the variable and function is because the process did not die. For the query, in default q will not save that, unless when you customize your .z.pg to upsert a record in a queryHistory table.
e.g.
q).z.pg:{[x]`queryHistory insert ([]queryTime:.z.P;query:enlist x)}
q)queryHistory:([]queryTime:`timestamp$();query:())
q)10+10
20
q)testTab:([]sym:10?`1;val:10?100)
q)queryHistory
queryTime query
---------------
queryHistory is not append with record as this is being done in q process itself, if you do it in your qpad:
10+10
testTab:([]sym:10?`1;val:10?100)
you can see there will be record append, so even your GUI is crashed, you can trace the query
q)queryHistory
queryTime query
-------------------------------------
2019.02.26D17:32:38.471063000 "10+10"
q)queryHistory
queryTime query
----------------------------------------------------------------
2019.02.26D17:32:38.471063000 "10+10"
2019.02.26D17:32:52.790863000 "testTab:([]sym:10?`1;val:10?100)"
Got to know recently, there is a backup of your q scripts at "c/users//Appdata/local" and are autosaved every 5-6 mins.These are temporary files which are deleted when you save the script. However if your qPad crashed, you can find your files here :)
I have a Docker image that has one non-root user created named builder.
The application that supposed to run inside the container uses unix who command.
For some reason it returns empty string inside the container:
builder#2dc3831c558b:~$ who
builder#2dc3831c558b:~$
I cannot use whoami because of implementation details.
(I'm using Docker 1.6.2 on Debian Jessie)
EDIT (additional details regarding why I use "who"):
I use the command who with the parameters am i, that is who am i. This suppose to return the user who first made the login. So, for example, sudo who am i returns builder, while sudo whoami returns root.
The command who includes options like -b: time of last system boot.
Since all commands from a container translates into system calls to the kernel, that would not return anything container related, but docker-host related (ie the underlying host).
See also "Difference between who and whoami commands": whoami prints effective username of being ran whoami, which is not the same as who (printing information about users who are currently logged in).
The current workarounds listed in issue 18547 are:
The registry configuration is stored in the client, so something as simple as cat ~/.docker/config.json will give you the answer you're looking for.
docker info | grep Username should give you this information.
But that is not the same as running the command from within a container session. id -u might be closer.
By default, there is no direct loggin when a container is started by the docker daemon.
As Auzias commented, only a direct ssh connection (initiating a login session) would allow who to return anything. But with docker, this is generally not needed since docker exec (for debug purposes) exists (and spare the image maintainer to include ssh unless it is really needed).
We have increased the -n parameter in broker/db.pf file.We restarted the server and when we check in promon its still showing the same number of users. How do we increase the -n parameter?
I know you answered this yourselves but for future users a real answer can be good. There are several ways to set parameters like -n. This answer really applies to changing all startup parameters (but not what values are "good").
How you change this value depends on how you start your database. See below.
NB 1: you should be aware of your licensing plan before changing this number and contact your sales contact if needed.
NB 2: you should be aware that changing startup parameters can affect performance etc. Test new values in a separate environment before moving them to production.
NB 3: backup all files before messing around...
Managed Database
A managed database is a database that is handled by the AdminServer. OE Management is not needed for this approach. A working installation of OE Explorer is however recommended.
The managed database is started (and stopped etc) via either the web based OE Explorer interface or the dbman command line utility.
Settings are stored in conmgr.properties under your Progress installation. You can edit this file manually (save a copy first...) or via the OE Explorer (recommended way).
You will have a line like this in the file:
maxusers=20 # -n
Edit the number to your liking with your favourite editor.
You can also change this in the OE Explorer:
Log in to OE Explorer. Default location is http://servername:9090/.
Locate and click on the database (if it's not there it's not handled by the adminserver - see below).
Select Configuration
Select Configuration (again, not "servergroup")
Click EDIT
-n (or Max users) is located in the first group of settings ("General"). See picture below.
Edit the value and don't forget to save.
Scripted Database
A scripted database is a database that started with a custom script (or also directly from command line). The actual startup could be handled by crontab, a user, the server generic startup script etc.
The OE AdminServer is not "aware" of this database. (You can make the AdminServer "a little" aware of it by running the dbagent command line utility with certain parameters. Read more about this in the manual).
You could generally divide into two ways of handling the script: with parameters in it or with parameters in a separate parameter file (often with the extension .pf).
Script with parameters in it
With this approach you store all parameters in the actual startup script.
proserve <dbname> -H <hostname> -S <serviceport> -n 10 -B 10000 -spin 10000 etc..
Script with a separate parameter file
With this approach you store the parameters in a separate file.
proserve <dbname> -pf /path/to/file/file.pf
The .pf-file can be formatted like the parameters in the command line:
-db <dbname> -H <hostname> -S <service> etc.
Or with newlines (this allows for comments in the file):
# Main database
-db <dbname>
-H <hostname>
-S <service>
You can also mix these two approaches.
Sources:
OE Management and OE Explorer
OE Database Management
Is is possible to have R connect to gmail's POP server and read/download the messages in a specific folder of mine? I have been storing emails and would like to go back and start to analyze subject lines, etc.
Basically, I need a way to export a folder in my gmail account and I would like to do this pro grammatically if it all possible.
Thanks in advance!
I am not sure that this can be done via a single command. Maybe there is a package out there, which I am not aware of that can accomplish that, but as long as you do not run into that maybe the following process would be a solution ...
Consider got-your-back (http://code.google.com/p/got-your-back/wiki/GettingStarted#Step_4%3a_Performing_A_Backup) which "is a command line tool that backs up and restores your Gmail account".
You can invoke it like this (given that python is available on your machine):
python gyb.py --email foo#bar.com --search "from:pip#pop.com" --folder "mail_from_pip"
After completion you'll find all the emails matching the --search in the specified --folder, along with a sqlite database. (posted by dukedave, Dec 4 '11)
So depending on your OS you should be able to invoke the above command from within R and then access the downloaded mails in the respective folder.
GotYourBack is a good backup utility, but for downloading metadata for analysis, you might want something that doesn't first require you to fetch the entire content of all your email.
I've recently used the gmailr package to do a similar analysis.
I want to copy files from local machine to remote server through SCP command. I was able to copy files through Cygwin. Now I want to achieve this thru Qt. How do I invoke 'SCP' command? If I make use of QProcess, then how will I get to know about password prompt?
As fara as I know, you will hit the same issue with scp prompting for the password whichever way you try to call the command (even if you try writing a bash script that calls scp, for instance)
Possible solution I'm aware of includes:
create a public/private key and distribute them so that you do not need to be prompted with the password. An interesting paper on the topic is here
create an expect script and invoke it with QProcess
Require your users to use public keys and your problem is solved: https://hkn.eecs.berkeley.edu/~dhsu/ssh_public_key_howto.html
scp, ssh, sftp, etc. deliberately make it hard to take a password other than directly from the user. Specifically, things like expect will not work. And if they did, they wouldn't be secure.