BaseX-Talk

basex-talk@mailman.uni-konstanz.de

5251 discussions

XUDY0016 error
by Britney Fox 25 Aug '17

25 Aug '17

Hello, I get this error: [XUDY0016] Documents in path '...' can only be replaced once. Code : XUDY0016 Description : In a replace expression, a target is replaced more than once. Examples : let $a := <x>x</x>/node() return (replace node $a with <a/>, replace node $a with ) Is there a BaseX option to allow multiple "replace" in one query on the same document ?

2 1

Could not reserve enough space for object heap
by Bram Vanroy 25 Aug '17

25 Aug '17

Hi all I'm running into an issue with many databases. I.e. one server instance with millions of databases. When creating all of these, I found that the more databases are included on the instance, the slower further database generation got. For instance, I could see in the logs that in the first < 10.000 databases the creation happened smoothly with around 50ms per file of 1-4kB. However, when having more and more databases for this server instance, things got very slow: for an XML file of 1-4kB the logs show ~600ms. This is terribly slow, as you can imagine. At first I thought something was wrong with my hardware, but I checked on another system and the same issues arises. Then I thought maybe Java is doing something strange, so I figured I'd reboot and see if that cleared some stuff up. But now when I try to launch 'basex' or 'basexserver', I get the following message: Could not reserve enough space for 1433600KB object heap I googled the issue, and it was suggested that I added a JAVA option to my system's variable (I'm on Windows 10 64 bit, BaseX 8.6.4) indicating the memory it could use. I set that to 2048MB. But still the same issue persists. I have contacted the list before, with issues of generating millions of database with the same server instance, and this seems another one related to the problem. I am no expert AT ALL, but isn't it possible there is some sort of micro memory leak that only becomes apparent when creating an amount of databases of this magnitude? If not, other ideas are welcome as well. At least on how to get rid of the Java error mentioned above. Kind regards Bram Vanroy

5 10

BaseX 8.6.6
by Christian Grün 24 Aug '17

24 Aug '17

Hi there, BaseX 8.6.6 is out. Among other things, we fixed two bugs in the map:merge function and where clauses with predicates, so we recommend you to update to the latest version if you work with BaseX 8.6.x. Apart from that, binary data handling was tweaked a lot: The Binary and Conversion Modules will now be much faster if you iterate over single bytes. Have fun everyone, Christian PS: I’ll be offline most of the time until Sep 15. Thanks everyone for keeping the mailing list alive!

1 0

RESTXQ custom response
by Tim Thompson 22 Aug '17

22 Aug '17

Hello, Is it possible to overwrite default HTTP headers in RESTXQ? I am running BaseX in Tomcat 7 and have set the authmethod param set to "Custom." I wanted to define my own WWW-Authenticate header for Digest authentication. I tried something like this: <http:header name="WWW-Authenticate" value="{ ``[Digest realm="BaseX", qop="auth, auth-int", algorithm=MD5, nonce=`{hash:md5(random:uuid())}`]`` }"/> (in a custom response, as specified in http://docs.basex.org/wiki/RESTXQ#Custom_Response). However, the WWW-Authenticate header only returns a value of Custom realm="BaseX" no matter what I do in the custom RESTXQ response. Thanks in advance, Tim -- Tim A. Thompson Discovery Metadata Librarian Yale University Library

2 13

Re: [basex-talk] The BaseX REPLACE command and archives
by Christian Grün 22 Aug '17

22 Aug '17

I have remastered the way how paths of command calls are parsed: Relative path segments (".", "..") will now be correctly resolved as well. I hope you can now specify '/' as replacement path [1]. Cheers, C. [1] http://files.basex.org/releases/latest/ On Tue, Aug 22, 2017 at 4:21 PM, Britney Fox <britfox42(a)hotmail.com> wrote: > i have already tried but I have an error: > > Path '/' is invalid.

1 0

Re: [basex-talk] The BaseX REPLACE command and archives
by Christian Grün 22 Aug '17

22 Aug '17

...even better! Can you specify '/' as path? Am 22.08.2017 4:02 nachm. schrieb "Britney Fox" <britfox42(a)hotmail.com>: Hi, REPLACE command already works correctly with .tar.gz :) It just add a path at the start of the database tree. This for example: REPLACE path "/Users/DB/file.tar.gz" Add path for every directories found in the archive to the database... if path could be the database root or optional it would be perfect :)

1 0

The BaseX REPLACE command and archives
by Britney Fox 22 Aug '17

22 Aug '17

Hi, I would like to use BaseX for a database and the daily updates are .tar.gz files which inlude .xml inside directories. Of course, the directories need to match the ones inside the database. Unfortunately, the BaseX REPLACE command absolutly need a path so it makes the update fail since the path is added. So, is there a solution using BaseX ? Thanks.

2 1

bug in XPath evaluation
by nikos dimitrakas 22 Aug '17

22 Aug '17

Hi! I discovered a strange behavior i BaseX (8.6.5): I evaluate //S/@k/parent::* or //S/@k/.. and it works I evaluate //S[.//@m="V"] and it works But when I evaluate //S/@k/parent::*[.//@m="V"] or //S/@k/..[.//@m="V"] it does not work. There is no error, just no result. At first I thought that there was an error with going to a parent of an attribute node, but that works. Then I thought the problem was with ".//@" in the predicate, but that also works. It appears that it is the combination that confuses the engine. Here is an xml to test the above expressions: <Root> <S k="AAA"> </S> <S k="AA"> </S> <S k="D"> </S> <S k="C"> </S> <S k="AAA"> </S> <S k="AA"> </S> <S k="C"> </S> <S k="AAA"> </S> <S k="AA"> </S> </Root> I hope you can find the problem and fix it in a new version soon. Regards /nikos

3 3

BaseX results window
by Koh Khai Huat 22 Aug '17

22 Aug '17

Hi, I would like to ask, everyone here knows if its possible to turn off XML Namespace attributes in the results window when we query? Any suggestion or solutions are welcomed. Regards Alex Koh

2 1

RESTXQ %input:csv annotation
by Kendall Shaw 21 Aug '17

21 Aug '17

The example produces an error saying it can’t convert string to document node: declare %rest:path("/store.csv") %rest:POST("{$csv}") %input:csv("header=true,encoding=CP1252") function page:store-csv($csv as document-node()) { "Number of rows: " || count($csv/csv/record) }; I can just change the function signature and parse the string with csv:parse, but is the example missing a detail (or am I missing a detail)? I used this to store CSV data in the default format. curl –XPOST –H’Content-Type: text/csv’ –data @some.csv http://example.com/basex/store.csv Kendall

2 3

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

BaseX-Talk