Thompsonbry.systap added a comment. It might be useful to take some of these questions to the bigdata-developers mailing list. Some of these questions already have answers on the wiki.
1. RDR Syntax. For the RDR exception, please create a unit test. There are a few places where that test could be written. For example TestReificationDoneRightEval (core SPARQL evaluation test suite) or TestRDROperations (test evaluation against the REST end point). 2. It would be great to get a set of queries for performance testing the wikidata dump. This might be a query plan issue. I can try to run it against a local copy that I've loaded from the following files, but this might be different data. I suggest that having a SPARQL end point that was open to the group might be useful. wget http://tools.wmflabs.org/wikidata-exports/rdf/exports/20150126/wikidata-terms.nt.gz wget http://tools.wmflabs.org/wikidata-exports/rdf/exports/20150126/wikidata-properties.nt.gz wget http://tools.wmflabs.org/wikidata-exports/rdf/exports/20150126/wikidata-statements.nt.gz wget http://tools.wmflabs.org/wikidata-exports/rdf/exports/20150126/wikidata-simple-statements.nt.gz wget http://tools.wmflabs.org/wikidata-exports/rdf/exports/20150126/wikidata-taxonomy.nt.gz wget http://tools.wmflabs.org/wikidata-exports/rdf/exports/20150126/wikidata-instances.nt.gz 3. Not sure off hand what is happening here. However, this could be a type casting issue. xsd:dateTime and xsd:gYear are not the same thing. They would be indexed as different data types. A key range scan on one would not intersect with a key-range scan on the other. 4. We are doing a lot of work on deployers. The HAJournalServer page of the wiki documents a lot of these options. Try doing "ant stage" and then using either the startNSS or the startHAServices scripts. These share a lot of the options and expose a lot of the options that are supported. @brad is the point person on the developers work. 5. Backup: You can not obtain a coherent copy of the journal if there are writers executing. If you suspect writes at the application layer, then this works. HA provides online backup. This is documented on the HAJournalServer page of the blazegraph wiki. There are two kinds of online back. Snapshots, which are coherent compressed (Gzip) views of the database. Transaction logs (called HALog files) which are per commit point logs of the write set of the transaction at the lowest level. Both are fully online and do not block writers or readers. You can also deploy an HA1 mode that does online backup, but the standard NSS does not support this. TASK DETAIL https://phabricator.wikimedia.org/T92308 REPLY HANDLER ACTIONS Reply to comment or attach files, or !close, !claim, !unsubscribe or !assign <username>. EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Smalyshev, Thompsonbry.systap Cc: Thompsonbry.systap, Haasepeter, Beebs.systap, Manybubbles, Aklapper, Smalyshev, jkroll, Wikidata-bugs, Jdouglas, aude, GWicke, daniel, JanZerebecki _______________________________________________ Wikidata-bugs mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
