[Owlim-discussion] about AVL tree error

2012-06-18 Thread Sinan Yurtsever
Dear all I recently encounter such an error when I try to upload new data to the repository: org.openrdf.repository.RepositoryException: Failed to upload data: Cannot put any more statements in AVL tree at org.openrdf.http.client.HTTPClient.upload(HTTPClient.java:841) at org

[Owlim-discussion] Poor performance for Sparql queries with property path optional elements

2012-06-18 Thread Krzysztof Sielski
Hello, We noticed that after migrating to Owlim SE 5.1.5183 our queries which use property paths with optional elements are evaluated very slowly (in contrast to previous releases). Their direct equivalents using UNION would return the same results much faster. This is an example: [query for

Re: [Owlim-discussion] Poor performance for Sparql queries with property path optional elements

2012-06-18 Thread Ruslan Velkov
Hi Krzysztof, Many thanks for reporting this and for providing a test class! What we introduced in 5.1 is the Sesame's QueryJoinOptimizer which rearranges joins so that if there are sub-select clauses in the query they will be evaluated first and in the best possible order (in terms of number

Re: [Owlim-discussion] Poor performance for Sparql queries with property path optional elements

2012-06-18 Thread Marek Ĺ urek
Hi Ruslan, we have the similar issue (see http://www.mail-archive.com/owlim-discussion@ontotext.com/msg01626.html), which is probably based on the same thing. I don't understand from your response whether the new behaviour is bug or feature. I carefully looked at release notes and nothing so se