Cool, thanks. I should get a chance to look into it over the next couple of weeks.
Cheers Nigel On 17 July 2014 22:41, Alan Robertson <al...@unix.sh> wrote: > And for good measure, if you use the Dockerfile quoted below (and > attached), this is a clean-room reproduction of the problem in CentOS6 > (with Python 2.7). > > ############################################### > FROM centos:latest > # Would prefer headless, but not available in CentOS6 > RUN yum -y install wget java-1.7.0-openjdk scl-utils redhat-lsb-core > RUN wget -qO- http://dev.centos.org/centos/6/SCL/scl.repo >> > /etc/yum.repos.d/centos.scl.repo > RUN yum -y install python27-python python27-python-setuptools > ### Neo4j RPM > RUN wget http://debian.neo4j.org/neotechnology.gpg.key -O /tmp/neo4j.key > && rpm --import /tmp/neo4j.key && rm -f /tmp/neo4j.key > RUN echo '[neo4j]' > /etc/yum.repos.d/neo4j.repo && echo 'name=Neo4j Yum > Repo' >> /etc/yum.repos.d/neo4j.repo && echo 'baseurl=http://yum.neo4j.org' > >> /etc/yum.repos.d/neo4j.repo && echo 'enabled=1' >> > /etc/yum.repos.d/neo4j.repo && echo 'gpgcheck=1' >> > /etc/yum.repos.d/neo4j.repo && yum -y install neo4j > RUN scl enable python27 'easy_install pip' > RUN scl enable python27 'pip install py2neo' > RUN echo "Pulling Assimilation project source" > RUN mkdir /tmp/neotest && cd /tmp/neotest && wget -q > http://hg.linux-ha.org/assimilation/raw-file/tip/cma/store.py && wget -q > http://hg.linux-ha.org/assimilation/raw-file/tip/cma/assimevent.py > RUN NEO=neo4j; cd /tmp/neotest && /etc/init.d/${NEO} start && sleep 15 && > scl enable python27 '/usr/bin/env python --version; python store.py' > ################################################## > > Do this: > make a directory > cd into the directory you just made > copy the above text into a file in that directory - named Dockerfile > docker.io build . > > This is a completely clean-room demonstration of the problem in CentOS6. > > > > On 07/17/2014 08:16 AM, Alan Robertson wrote: > > Hi Nigel, > > Many thanks for your quick reply! > > I can reproduce it with what I think is a smallish environment. > > If you download my code from here: > http://hg.linux-ha.org/assimilation/archive/tip.tar.gz > > Untar it, and go into the cma directory. Run the python script *store.py* > > It will fail. Each time you run it, it will give a higher node in the > graph that it cannot find. > > If it doesn't fail, then we can try the docker thing to reproduce the > environment more exactly. > > To try the docker version, you just need to install docker and say "docker > build ." (or docker.io) with my Dockerfile in your directory. It will do > the rest - grab the OS, libraries, things we need, build my code and run my > tests. It just takes longer. For this environment, it helps to understand > docker when you want to debug it. > > It's pretty awesome. But hopefully you won't need to do that. > > I also have a more complex set of tests that only require python that will > likely fail if there's a Neo4j/Py2neo issue that affects me. Maybe I > should create a separate test environment for that - that you could easily > run. > > > > > On 07/15/2014 04:42 PM, Nigel Small wrote: > > Familiar with the concept but have never actually used it. > > > On 15 July 2014 23:41, Alan Robertson <al...@unix.sh> wrote: > >> Yes. There are lots of ways to do that. After all, it's all open >> source :-D. >> >> Are you familiar with docker? >> >> >> >> On 07/15/2014 04:19 PM, Nigel Small wrote: >> >> Can you share some code that I can run to recreate the issue? >> >> Cheers >> Nigel >> >> >> On 15 July 2014 23:09, Alan Robertson <al...@unix.sh> wrote: >> >>> Neo4j package: neo4j-2.1.2-1.noarch >>> >>> # pip list | grep py2neo >>> py2neo (1.6.4) >>> >>> The context is this: >>> I just did a commit of a transaction which added nodes to the database, >>> and am now trying to retrieve these same nodes by the ids for them which >>> were returned by the transaction. >>> >>> >>> tests.cma_test TestCMABasic.test_several_startups ... error: >>> tests.cma_test TestCMABasic.test_several_startups >>> Traceback (most recent call last): >>> File "./tests/cma_test.py", line 506, in test_several_startups >>> CMAinit(io, cleanoutdb=True, debug=DEBUG) >>> File "./cmainit.py", line 75, in __init__ >>> CMAdb.store.commit() >>> File "./store.py", line 912, in commit >>> for attr in newnode.get_properties(): >>> File >>> "/opt/rh/python27/root/usr/lib64/python2.7/site-packages/py2neo/neo4j.py", >>> line 1398, in get_properties >>> self._properties = assembled(self._properties_resource._get()) or {} >>> File >>> "/opt/rh/python27/root/usr/lib64/python2.7/site-packages/py2neo/neo4j.py", >>> line 367, in _get >>> raise ClientError(e) >>> ClientError: Cannot find node with id [0] in database. >>> >>> ERROR in 2.49s >>> tests.cma_test TestCMABasic.test_startup ... error: tests.cma_test >>> TestCMABasic.test_startup >>> Traceback (most recent call last): >>> File "./tests/cma_test.py", line 433, in test_startup >>> CMAinit(io, cleanoutdb=True, debug=DEBUG) >>> File "./cmainit.py", line 75, in __init__ >>> CMAdb.store.commit() >>> File "./store.py", line 912, in commit >>> for attr in newnode.get_properties(): >>> File >>> "/opt/rh/python27/root/usr/lib64/python2.7/site-packages/py2neo/neo4j.py", >>> line 1398, in get_properties >>> self._properties = assembled(self._properties_resource._get()) or {} >>> File >>> "/opt/rh/python27/root/usr/lib64/python2.7/site-packages/py2neo/neo4j.py", >>> line 367, in _get >>> raise ClientError(e) >>> ClientError: Cannot find node with id [1] in database. >>> >>> -- >>> Alan Robertson <al...@unix.sh> <al...@unix.sh> - @OSSAlanR >>> >>> "Openness is the foundation and preservative of friendship... Let me >>> claim from you at all times your undisguised opinions." - William >>> Wilberforce >>> >>> >> >> >> -- >> Alan Robertson <al...@unix.sh> <al...@unix.sh> - @OSSAlanR >> >> "Openness is the foundation and preservative of friendship... Let me claim >> from you at all times your undisguised opinions." - William Wilberforce >> >> > > > -- > Alan Robertson <al...@unix.sh> <al...@unix.sh> - @OSSAlanR > > "Openness is the foundation and preservative of friendship... Let me claim > from you at all times your undisguised opinions." - William Wilberforce > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to neo4j+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > > > > -- > Alan Robertson <al...@unix.sh> <al...@unix.sh> - @OSSAlanR > > "Openness is the foundation and preservative of friendship... Let me claim > from you at all times your undisguised opinions." - William Wilberforce > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to neo4j+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to neo4j+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
