Anaconda path export in .bashrc causes dbus crashes for Tigervnc

[erichdw...@gmail.com]

Hello all.

Using a RHEL7 based system, and the latest tigervnc install, together with the latest Anaconda package direct from the Anaconda site.

Prior to Anaconda, tigervnc had no issue starting up multiple services. Post Anaconda install, in order to have the python path set to use Anaconda, in .bashrc the file was edited to include to specifics to check to see if python was set to be anaconda. In the check, if it hasn't, the export path="/blahpath/anaconda2/bin:$PATH" entry is present and sets it. This works for anaconda, but if that piece is enabled, then when the vncserver services I have setup to start, fail to do so.

The error message in the vnc server logs are as follows:
dbus_proxy_call_internal: assertion `G_IS_DBUS_PROXY (proxy)' failed

It appears that there is some sort of dbus conflict going on, as when I comment out the anaconda export path entry in .bashrc, everything starts up just fine.

For vncserver in the .vnc director for the user everything binds against (which is where the .bashrc file lives for that user to be able to access their desktops via vnc), everything is set correctly as far as I can tell by default:

[code]
#!/bin/sh

unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
/etc/X11/xinit/xinitrc
vncserver -kill $DISPLAY
[/code]

I'd rather not have to have the user set their python path manually each time they vnc over to their box. I for the life of me cannot find a solution to this. I see plenty of other similar posts about the same topic, some stating they've solved the issue, but 0 details on how.

It seems like there should be a way to work around the dbus proxy by setting an additional parameter somewhere, but I cannot figure out what and where.

Any assistance here would be greatly appreciated!

[Mr. Snrub]

I have a workaround that seems to be working at the moment, though I do not know if there will be repercussions with the anaconda dbus and gdbus items.  Is there a good way of testing?

Anyhow, here is what I did...

In the /blah/anaconda2/bin directory, I removed the following items and symlinked the ones from the system that are normally in use:

ln -s /usr/bin/gdbus gdbus

ln -s /usr/bin/dbus-daemon dbus

ln -s /usr/bin/dbus-binding-tool dbus-binding-tool

ln -s /usr/bin/dbus-cleanup-sockets dbus-cleanup-sockets

ln -s /usr/bin/dbus-daemon dbus-daemon

ln -s /usr/bin/dbus-launch  dbus-launch

ln -s /usr/bin/dbus-monitor dbus-monitor

ln -s /usr/bin/dbus-run-session dbus-run-session

ln -s /usr/bin/dbus-send dbus-send

ln -s /usr/bin/dbus-test-tool dbus-test-tool

ln -s /usr/bin/dbus-update-activation-environment dbus-update-activation-environment

ln -s /usr/bin/dbus-uuidgen dbus-uuidgen

Of course, the location of each item may vary on your system, so do a :

which whatever

that will give you the location of said item if it indeed exists.

Did that, uncommented the export line in the .bashrc file and everything appears to be happy between anaconda2 and tigervnc.

Now, for the anaconda devs, somehow, someway, this is what YOU need to do in your code. You should be finding the default defacto versions of gdbus and what have you that you are attempting to call and call those, so that this sort of thing does not happen.

My two cents anyways, plus inflation.

[Phil Ayres]

I know this is old, but for anybody else having this issue, this is what I did to get xdrp and VNC to work with anaconda and the dbus issue. 

Basically, I prevent anaconda from setting the paths when a session is being run as part of certain scripts. For xrdp this is "startwm.sh", but for your VNC startup it may be something else.

My .bashrc script now looks like this:

# .bashrc

# Source global definitions

if [ -f /etc/bashrc ]; then

        . /etc/bashrc

fi

# Uncomment the following line if you don't like systemctl's auto-paging feature:

# export SYSTEMD_PAGER=

# User specific aliases and functions

if [ "$0" != 'startwm.sh' ]; then

# >>> conda initialize >>>

# !! Contents within this block are managed by 'conda init' !!

__conda_setup="$('/opt/anaconda/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"

if [ $? -eq 0 ]; then

    eval "$__conda_setup"

else

    if [ -f "/opt/anaconda/etc/profile.d/conda.sh" ]; then

        . "/opt/anaconda/etc/profile.d/conda.sh"

    else

        export PATH="/opt/anaconda/bin:$PATH"

    fi

fi

unset __conda_setup

# <<< conda initialize <<<

fi

where I added the if ["$0... line and the matching fi at the end to prevent conda initialization

You may find it useful