BaseX-Talk

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1 participants
5252 discussions

BaseX setup under Docker
by Wendell Piez 19 Jan '19

19 Jan '19

Hello BaseX friends, So it happens that I am trying to discover how to set up BaseX to run in Docker. By no means am I skilled in system administration. There are some instructions at http://docs.basex.org/wiki/Docker which are very helpful, not least in confirming that I have a reasonable idea. The last example given on that page, however, gives me pause. It appears to install git into the Docker image, but the commentary suggests it's something else including a modification to CLASSPATH. I wonder if the commentary is not out of sync with the example. Yet at the same time I just need to know more -- inasmuch as I would like my image to have SaxonHE available, the most recent version freely available from maven or best available means. What would the syntax be for that. and how do I determine what that is (presumably for apk)? As well as potentially amending the CLASSPATH, if need be, to add the saxon.jar ... Thanks for any hints. relevant tips or links to Docker help :-) Regards, Wendell -- Wendell Piez | wendell -dot- piez -at- nist -dot- gov | http://www.wendellpiez.com pellucidliterature.org | github.com/wendellpiez | gitlab.coko.foundation/wendell - pausepress.org

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Documentation suggestion
by Marco Lettere 17 Jan '19

17 Jan '19

Hi Christian, I suggest to add an explicit statement of which is the default value of the combine option of map:merge. Currently the only reference is in the Change notes at the bottom of the page. Thanks! Marco.

2 4

file:read-text-lines performance
by George Sofianos 16 Jan '19

16 Jan '19

Hello, I'm trying to read a 4GB text file with 5 million lines and parse its contents. I'm using file:read-text-lines function <http://docs.basex.org/wiki/File_Module#file:read-text-lines> to do that. I managed to use fork-join and use 16 CPU threads to read the whole file by reading 10000 lines in each iteration, but it still takes 500 seconds for parsing / analyzing the data. Using a profiler I can see that most of the time is wasted reading each line - method readline <https://github.com/BaseXdb/basex/blob/0ef57de84659263c565ec41fff666ba5fa4f0…>. I plan to make some changes on the code tonight and see if I can find a way to read it faster, but I thought I should also post it here in case you have any tips. I'm also very inexperienced with using profilers so I hope I read the output correctly :) Regards, George

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Concurrency WebDAV vs. REST API
by Andreas Jung 15 Jan '19

15 Jan '19

For development purposes I am running basehttp in foreground. The WebDAV endpoint seems to block while I run a larger import for REST with lots of ADD and STORE commands within one <commands>..</commands> section. The WebDAV connection times out…what is the explanation for this? Andreas

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prof:variables() and inlining
by George Sofianos 14 Jan '19

14 Jan '19

Hello, just something I noticed. I was trying to check the variables of one of my functions, but it only returned an empty string. Reading [1] <http://docs.basex.org/wiki/Profiling_Module#prof:variables> gave me the impression that disabling inlining (locally or globally) would return these values. But it doesn't work for me in version 9.1.1 or latest snapshot. I tested it on 8.4.4 and it works, so either it is a regression or a changed behaviour. I usually open an issue on Github directly but I think you now prefer it in the mail list first. Regards, George

2 6

Slow WebDAV operation
by Andreas Jung 10 Jan '19

10 Jan '19

I have an optimized database with 25K objects, 8 GB of data running on 9.1.1. WebDAV operations are very slow (client running and connecting locally). The response times are by a magnitude slower compared to exist-db. Is there some something missing in the configuration in order to speed this up significantly? Andreas 11:28:16.899 127.0.0.1:45822 admin OK Database 'onkopedia' was optimized in 29379.65 ms. 29380.24 ms 11:28:24.689 0:0:0:0:0:0:0:1:34258 admin REQUEST [HEAD] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:25.382 0:0:0:0:0:0:0:1:34258 admin 200 694.07 ms 11:28:25.389 0:0:0:0:0:0:0:1:34260 admin REQUEST [PROPFIND] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:26.065 0:0:0:0:0:0:0:1:34260 admin 200 675.31 ms 11:28:26.078 0:0:0:0:0:0:0:1:34262 admin REQUEST [HEAD] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:26.770 0:0:0:0:0:0:0:1:34262 admin 200 691.53 ms 11:28:26.789 0:0:0:0:0:0:0:1:34264 admin REQUEST [PROPFIND] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:29.231 0:0:0:0:0:0:0:1:34264 admin 200 2444.93 ms 11:28:29.240 0:0:0:0:0:0:0:1:34266 admin REQUEST [HEAD] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:29.856 0:0:0:0:0:0:0:1:34266 admin 200 616.41 ms 11:28:29.864 0:0:0:0:0:0:0:1:34268 admin REQUEST [PROPFIND] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:32.310 0:0:0:0:0:0:0:1:34268 admin 200 2445.99 ms 11:28:32.317 0:0:0:0:0:0:0:1:34270 admin REQUEST [HEAD] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:33.083 0:0:0:0:0:0:0:1:34270 admin 200 766.14 ms 11:28:33.103 0:0:0:0:0:0:0:1:34272 admin REQUEST [GET] http://localhost:8984/webdav/onkopedia/onkopedia/de/onkopedia/guidelines/ma… 11:28:33.719 0:0:0:0:0:0:0:1:34272 admin 200 615.38 ms

2 8

web:response-header()
by Johannes Bauer 10 Jan '19

10 Jan '19

Hello, I've a question to the response-header() function of the web module. In my RESTXQ function I try to return a response with HTTP Status 404: module namespace basex ='basex'; declare %rest:GET %rest:path("/db/{$db}/doc/{$doc}") %rest:produces("application/xml") %output:method("xml") function basex:doc($dbas xs:string, $docas xs:string)as item()* { web:response-header(map {},map {},map {"status" :404}),<notfound/> }; When I call this function I get the error: [basex:restxq] Unexpected node: status="404". If I call the function outside of the RESTXQ context the following response is generated: <rest:response xmlns:rest="http://exquery.org/ns/restxq" *status="404"*> <http:response xmlns:http="http://expath.org/ns/http-client"/> <output:serialization-parameters xmlns:output="http://www.w3.org/2010/xslt-xquery-serialization"/> </rest:response> <notfound/> Shouldn't the status attribute be put on the http:response element instead? Best regards Johannes

2 1

replacing text nodes
by Graydon Saunders 09 Jan '19

09 Jan '19

Hello! I'm using BaseX 9.1.1 on Linux. So I need to go through a whole bunch of documents and emit them in an obfusticated form so the folks doing publication development can have them without the client's security people becoming upset. I don't want to obfusticate the db contents; I just want to be able to write out an obfusticated version. Minimal example: declare function local:gib($in as text()) as text() { text { 'ABCD' } }; declare function local:obfusc($in as document-node()) as document-node() { copy $c := $in modify ( for $x in $c/descendant::text()[normalize-space] return replace node $x with local:gib($x) ) return $c }; for $doc in db:open('out')[contains(document-uri(),'/scr_')][1] let $blurred := local:obfusc($doc) return $blurred If I run this, I get $doc back unaltered. If I look at the optimized query, it looks like it ought to be changing things. What am I doing wrong? Thanks! Graydon

2 2

[DELIVER]JETTY SSL & Cheeky Reload
by Adam Law 07 Jan '19

07 Jan '19

Is it possible to configure BASEX's jetty to respond over HTTPS using a keystore (eg port 8985). I have tried editing jetty.xml to no avail and have read https://stackoverflow.com/questions/32734920/using-jetty-9-and-jetty-xml-w ith-basex. Ideally it would be great if the keystore could be uploaded without having to restart baseX - (possibly with a script) I know this is cheeky. Adam

2 1

Java XQuery
by thufir 07 Jan '19

07 Jan '19

After creating and populating a database: try { new DropDB(databaseName).execute(context); } catch (BaseXException ex) { Logger.getLogger(Database.class.getName()).log(Level.SEVERE, null, ex); LOG.fine("no databases to drop"); } how would I query it? The query: db:open("note")//note thanks, Thufir

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