unable to start rstudio in centos getting error "unable to connect to service"
Solution 1
When you login the rserver
process handles your authentication, and then fires up an rsession
process, which is the session you will use. The problem occurs when the rsession
process terminates due to an error.
If you have administrator privileges, you can debug the error by tracing the rserver
process and looking at the problem that caused rsession
to exit.
Here is how to do it.
First find the rserver
process-id.
ps auxw | grep studio
rstudio-server 7035 0.0 0.0 362488 4480 ? Ssl 16:37 0:01 /usr/local/lib/rstudio-server/bin/rserver
Note the second number that appears on the output of a row containing the string rstudio-server/bin/rserver
. In the case above the process-id is 7035.
Then trace rserver
sending the output to a file. The number after -p
should be the rserver
process-id. The funky -e
option is used to cut-down noise from Java's thread management.
sudo strace -f -e 'trace=!clock_gettime,gettimeofday,futex,timerfd_settime,epoll_wait,epoll_ctl' -p 7035 -o trace.txt
Login and wait for the error message to appear.
Stop the tracing by pressing ctrl-c
.
Open the file with your favourite editor, and search for the string exit_group
.
The lines above it are likely to indicate the error in rsession
. In my case it was a symbolic link from .rstudio
to a missing directory.
7529 mkdir("/home/dds/.rstudio", 0777) = -1 EEXIST (File exists)
7529 stat("/home/dds/.rstudio", 0x7ffff37419b0) = -1 ENOENT (No such file or directory)
7529 write(2, "07 Feb 2015 16:46:53 [rsession-d"..., 395) = 395
7529 sendto(3, "<11>Feb 7 16:46:53 rsession-dds"..., 398, MSG_NOSIGNAL, NULL, 0) = 398
7529 exit_group(1)
Solution 2
I encountered a similar issue while installing Rstudio server on Ubuntu. After following the instructions, I found that I needed to create a home directory folder for each user logging into the Rstudio browser session.
12414 mkdir("/home/chamal", 0777) = -1 EACCES (Permission denied)
12414 sendto(3, "<11>Jun 24 08:43:48 rsession-cha"..., 375, MSG_NOSIGNAL, NULL, 0) = 375
12414 exit_group(1)
Related videos on Youtube
harry
Updated on June 04, 2022Comments
-
harry almost 2 years
I have Rstudio server installed on CentOS 6, but I cannot login to Rstudio from the browser at http://localhost:8787 in browser. A popup titled "RStudio Initialization Error" appears with message "Unable to connect to service".
I have tried the following to remedy the error, but I have been without success:
$ sudo rstudio-server verify-installation rstudio-server stop/waiting rserver[19273]: ERROR system error 13 (Permission denied) [username=rstudio-server]; OCCURRED AT: core::Error server::launchSession(const std::string&, const core::system::Options&, PidType*) /root/rstudio/src/cpp/server/ServerSessionManager.cpp:223; LOGGED FROM: int main(int, char* const*) /root/rstudio/src/cpp/server/ServerMain.cpp:428 rstudio-server start/running, process 19287 $ id -u supstat1 502 (user name is more than 500) $ sudo usermod -g rstudio_users supstat1 $ sudo vi /etc/sysconfig/iptables as root and added the following line(s) Add -A INPUT -m state --state NEW -m tcp -p tcp --dport 8787 -j ACCEPT Add -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT $ sudo lsof | grep rstudio rserver 9597 rstudio-server cwd DIR 8,1 4096 2 / rserver 9597 rstudio-server rtd DIR 8,1 4096 2 / rserver 9597 rstudio-server txt REG 8,1 7990044 553699 /usr/lib/rstudio-server/bin/rserver rserver 9597 rstudio-server mem REG 8,1 156928 391944 /lib64/ld-2.12.so rserver 9597 rstudio-server mem REG 8,1 1926800 391948 /lib64/libc-2.12.so rserver 9597 rstudio-server mem REG 8,1 599384 396110 /lib64/libm-2.12.so rserver 9597 rstudio-server mem REG 8,1 22536 391993 /lib64/libdl-2.12.so rserver 9597 rstudio-server mem REG 8,1 145896 391952 /lib64/libpthread-2.12.so rserver 9597 rstudio-server mem REG 8,1 91096 391950 /lib64/libz.so.1.2.3 rserver 9597 rstudio-server mem REG 8,1 1410824 564111 /usr/lib64/libcrypto.so.0.9.8e rserver 9597 rstudio-server mem REG 8,1 327488 567429 /usr/lib64/libssl.so.0.9.8e rserver 9597 rstudio-server mem REG 8,1 124624 396127 /lib64/libselinux.so.1 rserver 9597 rstudio-server mem REG 8,1 113952 406171 /lib64/libresolv-2.12.so rserver 9597 rstudio-server mem REG 8,1 18936 396128 /lib64/libuuid.so.1.3.0 rserver 9597 rstudio-server mem REG 8,1 93320 396113 /lib64/libgcc_s-4.4.7-20120601.so.1 rserver 9597 rstudio-server mem REG 8,1 17256 392157 /lib64/libcom_err.so.2.1 rserver 9597 rstudio-server mem REG 8,1 177520 392161 /lib64/libk5crypto.so.3.1 rserver 9597 rstudio-server mem REG 8,1 12592 406310 /lib64/libkeyutils.so.1.3 rserver 9597 rstudio-server mem REG 8,1 280520 392159 /lib64/libgssapi_krb5.so.2.2 rserver 9597 rstudio-server mem REG 8,1 944712 391997 /lib64/libkrb5.so.3.3 rserver 9597 rstudio-server mem REG 8,1 989840 536152 /usr/lib64/libstdc++.so.6.0.13 rserver 9597 rstudio-server mem REG 8,1 46368 406311 /lib64/libkrb5support.so.0.1 rserver 9597 rstudio-server mem REG 8,1 17520 406322 /lib64/libutil-2.12.so rserver 9597 rstudio-server mem REG 8,1 65928 391959 /lib64/libnss_files-2.12.so rserver 9597 rstudio-server 0u CHR 1,3 0t0 3643 /dev/null rserver 9597 rstudio-server 1u CHR 1,3 0t0 3643 /dev/null rserver 9597 rstudio-server 2u CHR 1,3 0t0 3643 /dev/null rserver 9597 rstudio-server 3r FIFO 0,8 0t0 37905 pipe rserver 9597 rstudio-server 4w FIFO 0,8 0t0 37905 pipe rserver 9597 rstudio-server 5u REG 0,9 0 3641 anon_inode rserver 9597 rstudio-server 6u IPv4 37907 0t0 TCP *:msgsrvr (LISTEN)
-
on_the_shores_of_linux_sea almost 10 yearscheck firewall settings. try telneting to 8787 port if its not connectable. also verify netstat -a |grep 8787 to see if port is listening
-
on_the_shores_of_linux_sea almost 10 yearssorry I did not realize you were connecting from the same machine. Check netstat -a |grep 8787 and particular port is in listening state.
-
harry almost 10 yearsi tried that there was no output.. still got same error 'Unable to connect to service'
-
on_the_shores_of_linux_sea almost 10 yearsif netstat -a |grep 8787 does not return anything.. that means Rstudio server is not running properly. it should return below line netstat -a |grep 8787 tcp 0 0 :8787 *: LISTEN
-
harry almost 10 yearswhen i start localhost:8787, i get the username and pwd page.. what should i do in this case.. do i need to uninstall and reinstall again rstudio will that work..
-
on_the_shores_of_linux_sea almost 10 yearsI faced the same issue, I dont recollect what exactly I did to resolve it, wait for some expert to come and help. In mean time U can check logs to pin point exact error. /var/log/user.log (Messages related to RStudio will be prefixed with either rserver or rsession).
-
on_the_shores_of_linux_sea almost 10 yearsIn username and pwd page, You should enter Linux username and password (I believe you are aware of this, just to double confirm :)
-
on_the_shores_of_linux_sea almost 10 yearsalso try rebooting your server, it might help
-
harry almost 10 yearsyes did that.. i have created new user to login into rstudio... i was working earlier.. i uninstalled complete r and rsudio as i was getting error with rjava and rhdfs... after lots of trying i was able to install everything except rstudio..
-
on_the_shores_of_linux_sea almost 10 yearsbasically issue is due to permissions. sudo adduser to create new user(useradd has few issues with Rstudio). After installation restart the server. Im nt sure what exactly is the issue, few pointers for you to check.
-
harry almost 10 yearsyes I have added the user and restart server.. it used to work previously.. no idea what happened now... :(
-
on_the_shores_of_linux_sea almost 10 yearscheck what is the error in /var/log/user.log and post it here
-
harry almost 10 yearsfile is empty, no entry in that.. just wanted check if this is the path for user.log..
-
chanp almost 9 yearsRecently, the Rstudio official website recommend you look at log files in these location:::: For Debian and ubuntu ==> /var/log/syslog :::: RedHat and CentOS ==> /var/log/messages
-
-
Jeremy Leipzig over 8 yearsvery, very helpful - in my case /tmp/rstudio-rsession was owned by root and not writable
-
Alexandre georges about 3 yearsVery helpful ! I have an issue with network drives set as working directory in some projects. Found the active session and was able to delete the session folder :
rm -r /home/user/.local/share/rstudio/sessions/active/session-9cc8d010