Authentication error, followed by Read error, followed by connection close.

[VenkatArchitect]

I'm using RSClient to connect to RServe. Both of them are installed in the same machine which is running Windows 8.1 x64.

After the connection is opened, when I send RS.eval command with a basic eval statement ( eval(1+5) ), initially authentication error happens, and when attempted again, the connection is closed:

c<-RS.connect()
c
Rserve QAP1 connection 0x0000000009bb1300 (socket 712, queue length 0)
RS.eval(c,eval(1+5))
Error in RS.eval(c, eval(1 + 5)) :
command failed with status code 0x41: authentication failed
RS.eval(c,eval(1+5))
rsc_abort: read error
Error in RS.eval(c, eval(1 + 5)) :
read error - could not obtain response header
RS.eval(c,eval(1+5))
Error in RS.eval(c, eval(1 + 5)) : connection lost
My Rserv.cfg looks like this :

D:\R64\R-3.3.0\bin\x64>type Rserv.cfg
workdir D:\R64\R-3.3.0\bin\x64
pwdfile none
remote disable
auth disable
plaintext enable
fileio enable
interactive yes

socket none

port 6311
maxinbuf 262144
maxsendbuf 0
uid none
gid none
su none
chroot none
sockmod 0
umask 0
encoding native
RServe was started from command line:

D:\R64\R-3.3.0\bin\x64>R CMD RServe
Rserve: Ok, ready to answer queries.
Not sure if this is something specific to 64-bit OS. RServe documentation says it has been tested only with 32-bit, and also discourages using Windows OS to major extent, but still, for testing purposes I would like to use Windows and then move on to Linux.

Someone suggested to start the command in R itself instead of command line. Not sure if it has any impact on the results. Any help would be appreciated.

[thrubovc]

Hi Venkat, have you managed to overcome the problem? I am having a similar issue, where I connect to Rserv from RSclient and the connection doesn't work 95% of the time, when making a TLS connection. It literally fails most of the time and >sometimes< it just works.
however, when I make a connection without TLS, it works every time.

con <- RS.connect(host = "127.0.0.1", port = 4445, tls = TRUE)
RS.login(con, user = "myRserveUserName", password="myRservePW", authkey=RS.authkey(con))
rsc_abort: read error
Error in RS.authkey(con) : read error - could not obtain response header

[VenkatArchitect]

I have given up on this for the time being. I will keep posted
if I ever get to this again.