Jörn Hees

junest startup slow on systems with many users

5

I'm running junest as a user on one of our university servers. As you can see below, there are > 20K users. On startup junest seems to spend a considerable...

Caches and prefers existing .junest/etc/passwd and group files Before this fix it was possible that concurrent startup (as in multiple junest processes) lead to partial files for some of the...

sparql: counts don't seem to be reliable

54

I'm trying to get a top type count for DBpedia (Virtuoso version 07.00.3207 on Linux (x86_64-redhat-linux-gnu), Single Server Edition): ``` select ?type count(distinct ?s) as ?c where { ?s a...

SPARQL BIND behaves weird

6

this doesn't work ([try](http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&qtxt=SELECT+%3Fsource+%3Ftarget+WHERE+{%0D%0A+BIND%28%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FClergy%3E+AS+%3Fsource%29%0D%0A+BIND%28%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FVicar%3E+AS+%3Ftarget%29%0D%0A+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FNewlands_Church%3E+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2FwikiPageWikiLink%3E+%3Ftarget+.%0D%0A}%0D%0A&format=text%2Fhtml&timeout=30000&debug=on)) : ``` SELECT ?source ?target WHERE { BIND( AS ?source) BIND( AS ?target) ?target . } ``` result: ``` Virtuoso 37000 Error SP031: SPARQL compiler: The...

hehe, nice repo... i faced a similar challenge (and approach ;)) when fusing results of my graph pattern learner, but as it's part of a bigger thing, i rewrote many...

I have a use-case for csvlink with two files containing different amounts of columns. There is no clear 1:1 mapping of colX from file1 to colY from file2. Looking at...

Revert "skip round-trip test, unfixable until 5.0"

2

This reverts commit 7bec219df4ab78afcd17f3611bba10aa9ee05b37, see #431 and #699 depends on #436 This should remind us to not forget this in 5.0.0

revert colons in qnames?

1

The change of #663 caused the following changed behavior: ```python import rdflib print(rdflib.Graph().namespace_manager.compute_qname('http://dbpedia.org/page/Category:Software_bugs')) ``` before: ```python ('ns1', rdflib.term.URIRef('http://dbpedia.org/page/Category:'), 'Software_bugs') ``` after: ```python ('ns1', rdflib.term.URIRef('http://dbpedia.org/page/'), 'Category:Software_bugs') ``` The generated normalized URI...

ever used `multiprocessing` or `scoop` to do some work? they use pickle for serialization and deserialization to send args and results around. Knowing that, look at this: ```python In [1]:...

remove __hash__ from mutable classes such as Graph

1

see discussion in #718 : `IOMemory` by default uses `hash(graph)` to hash its `identifier` to then create hashed quads... all of this happens in light of "hashing a graph" meaning...