Re: Help needed in setting up more than one peer on single user system.

[Christian Grothoff]

Hi Vikas,

Your attempt to start two peers with the testbed driver worked. The
various warnings you are getting are related to specific configuration
issues (binaries not being SUID, old DSTJ-file lying around somewhere)
which you should be able to safely ignore.

The only real issue is that you didn't give testbed any network
topology, so both of your peers are 'isolated' and don't talk to each
other. Try setting this option:

[testbed]
OVERLAY_TOPOLOGY = CLIQUE

(advice: don't use CLIQUE with > 200 peers!) and you should see the
peers connecting.  Also, if you set

[transport]
PLUGINS = unix
# (edit/remove existing option)

some of the warnings/errors you are seeing should go away.

Happy hacking!

Christian

On 2/8/20 8:23 PM, Vikas Maurya wrote:
> Hi,
> I have tried using two ways of setting up two peers on my system. first
> one from tutorial here
> https://docs.gnunet.org/tutorial/gnunet-tutorial.html/Starting-Two-Peers-by-Hand.html#Starting-Two-Peers-by-Hand
> <https://docs.gnunet.org/tutorial/gnunet-tutorial.html/Starting-Two-Peers-by-Hand.html#Starting-Two-Peers-by-Hand>and
> second using *gnunet-testbed-profiler *with --num-peers=2.
> 
> but in both the above methods I am facing problem with generating
> relevant configuration file to use. In profiler method I do not give any
> template configuration file (assuming it generates configuration file
> automatically for each peer, am I wrong?) I get the following errors,
> and I do not see any peers running when I issue *gnunet-core* command. 
> 
> <snip> 
> 0 links succeeded
> 0 links failed due to timeouts
> Testbed running, waiting for keystroke to shut down
> Feb 08 19:58:49-763826 gnunet-daemon-topology-16815 WARNING `write'
> failed on file
> `/tmp/testbedsJXvfu/0/.config/gnunet//topology/friends.txt' at
> friends.c:82 with error: No such file or directory
> Feb 08 19:58:49-812577 vpn-16834 ERROR
> `/usr/local/lib//gnunet/libexec/gnunet-helper-vpn' is not SUID or the
> path is invalid, refusing to run.
> Feb 08 19:58:49-820170 gnunet-daemon-topology-16818 WARNING `write'
> failed on file
> `/tmp/testbedsJXvfu/1/.config/gnunet//topology/friends.txt' at
> friends.c:82 with error: No such file or directory
> Feb 08 19:58:49-843203 vpn-16829 ERROR
> `/usr/local/lib//gnunet/libexec/gnunet-helper-vpn' is not SUID or the
> path is invalid, refusing to run.
> Feb 08 19:58:50-014395 transport-tcp-16836 WARNING Unexpected address
> length: 24 bytes
> Feb 08 19:58:50-014474 transport-16836 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-014497 transport-16836 ERROR Address with 24 bytes for
> plugin tcp and peer DSTJ is malformed
> Feb 08 19:58:50-014518 transport-tcp-16836 WARNING Unexpected address
> length: 12 bytes
> Feb 08 19:58:50-014536 transport-16836 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-014553 transport-16836 ERROR Address with 12 bytes for
> plugin tcp and peer DSTJ is malformed
> Feb 08 19:58:50-015215 transport-tcp-16836 WARNING Unexpected address
> length: 24 bytes
> Feb 08 19:58:50-015245 transport-16836 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-015265 transport-16836 ERROR Address with 24 bytes for
> plugin tcp and peer V8XX is malformed
> Feb 08 19:58:50-015279 transport-tcp-16836 WARNING Unexpected address
> length: 12 bytes
> Feb 08 19:58:50-015292 transport-16836 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-015312 transport-16836 ERROR Address with 12 bytes for
> plugin tcp and peer V8XX is malformed
> Feb 08 19:58:50-021832 transport-tcp-16844 WARNING Unexpected address
> length: 24 bytes
> Feb 08 19:58:50-021910 transport-16844 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-021929 transport-16844 ERROR Address with 24 bytes for
> plugin tcp and peer DSTJ is malformed
> Feb 08 19:58:50-021954 transport-tcp-16844 WARNING Unexpected address
> length: 12 bytes
> Feb 08 19:58:50-021970 transport-16844 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-021991 transport-16844 ERROR Address with 12 bytes for
> plugin tcp and peer DSTJ is malformed
> Feb 08 19:58:50-022489 transport-tcp-16844 WARNING Unexpected address
> length: 24 bytes
> Feb 08 19:58:50-022508 transport-16844 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-022522 transport-16844 ERROR Address with 24 bytes for
> plugin tcp and peer V8XX is malformed
> Feb 08 19:58:50-022536 transport-tcp-16844 WARNING Unexpected address
> length: 12 bytes
> Feb 08 19:58:50-022547 transport-16844 ERROR Assertion failed at
> gnunet-service-transport_validation.c:902.
> Feb 08 19:58:50-022559 transport-16844 ERROR Address with 12 bytes for
> plugin tcp and peer V8XX is malformed
> Feb 08 19:58:59-920957 core-16825 WARNING Ignoring duplicate
> EPHEMERAL_KEY from Y924
> Feb 08 19:58:59-947478 core-16831 WARNING Ignoring duplicate
> EPHEMERAL_KEY from Y924
> Feb 08 19:59:00-186383 core-16825 WARNING Ignoring duplicate
> EPHEMERAL_KEY from FJMD
> Feb 08 19:59:00-201462 core-16831 WARNING Ignoring duplicate
> EPHEMERAL_KEY from FJMD
> <snip>
> 
> My doubts are
> 1. how to use this *gnunet-testbed-profiler *correctly?
> 2. How to create config file for different peers on same system? (I
> tried using *gnunet-testing *for this but config files generated using
> this doesn't seem to work , which I tried using while following steps in
> tutorial mentioned above).
> 3. If I run multiple peers on a system How to check these peers are
> running correctly.
> 
> 
> Thanks,
> Vikas Maurya
> 
> **
> 
>

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