BaseX-Talk

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5254 discussions

Unknown function db:open
by Kendall Shaw 17 Sep '24

17 Sep '24

I'm using basex 11.2 under WSL ubuntu 24.04 when I use the command xquery count(db:open('some')/*), I see an error message about db prefix being undefined. The same thing from an editor tab. import module namespace db = 'http://basex.org/modules/db'; count(db:open('some')/*) I get the same error message. Is this to be expected? How can I supply what is needed? Thanks, Kendall Shaw

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Re: [basex-talk] BaseX-Talk Digest, Vol 177, Issue 2
by Rob Stapper 12 Sep '24

12 Sep '24

> Op 11-09-2024 12:00 CEST schreef basex-talk-request(a)mailman.uni-konstanz.de: > > > Send BaseX-Talk mailing list submissions to > basex-talk(a)mailman.uni-konstanz.de > > To subscribe or unsubscribe via the World Wide Web, visit > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk > or, via email, send a message with subject or body 'help' to > basex-talk-request(a)mailman.uni-konstanz.de > > You can reach the person managing the list at > basex-talk-owner(a)mailman.uni-konstanz.de > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of BaseX-Talk digest..." > > > Today's Topics: > > 1. terrible performance of webserver under BaseX11 (Rob Stapper) > 2. Re: terrible performance of webserver under BaseX11 > (Christian Gr?n) > 3. Re: terrible performance of webserver under BaseX11 > (Christian Gr?n) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 10 Sep 2024 15:31:52 +0200 (CEST) > From: Rob Stapper <r.stapper(a)lijbrandt.nl> > To: "basex-talk(a)mailman.uni-konstanz.de" > <basex-talk(a)mailman.uni-konstanz.de> > Subject: [basex-talk] terrible performance of webserver under BaseX11 > Message-ID: <1197257124.2620908.1725975112156(a)kpc.webmail.kpnmail.nl> > Content-Type: text/plain; charset="utf-8" > > Hi Christian, > > My webserver-app that performed reasenably well under BaseX10 performs terribly under Basex11. Chrome even gives me at the end of the process an 'out of memory' message. So it is not only performance but also resource-usage. I have absolutely no clou how to address this, so all suggestions are very welcome. > > mvgr. > > Rob Stapper >

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Re: [basex-talk] terrible performance of webserver under BaseX11
by Christian Grün 10 Sep '24

10 Sep '24

(cc to the list) For a more helpful response, we would certainly need to look at your code and run it by ourselves. I recommend you to run your function… $SWM:dialog.new …outside your web application, e.g. in the BqseX GUI. This may help you to isolate the problematic part of the code.

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terrible performance of webserver under BaseX11
by Rob Stapper 10 Sep '24

10 Sep '24

Hi Christian, My webserver-app that performed reasenably well under BaseX10 performs terribly under Basex11. Chrome even gives me at the end of the process an 'out of memory' message. So it is not only performance but also resource-usage. I have absolutely no clou how to address this, so all suggestions are very welcome. mvgr. Rob Stapper

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Unexpected error: Improper use? Potential bug? Your feedback is welcome:
by Rob Stapper 03 Sep '24

03 Sep '24

Hi Christian, After the hollidaybreak I found the courage to try to port my application to BaseX's version 112. I get the error-dump shown below. Any idea what is going wrong here? error-dump: ========= Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 11.2 Java: Eclipse Adoptium, 17.0.8 OS: Windows 10, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3 at org.basex.query.func.Closure.setSignature(Closure.java:418) at org.basex.query.func.StaticFuncs$FuncCache.init(StaticFuncs.java:268) at org.basex.query.func.StaticFuncs.check(StaticFuncs.java:83) at org.basex.query.QueryParser.check(QueryParser.java:270) at org.basex.query.QueryParser.parseLibrary(QueryParser.java:198) at org.basex.query.QueryContext.lambda$parseLibrary$1(QueryContext.java:236) at org.basex.query.QueryContext.run(QueryContext.java:763) at org.basex.query.QueryContext.parseLibrary(QueryContext.java:234) at org.basex.query.QueryContext.parse(QueryContext.java:178) at org.basex.http.web.WebModule.qc(WebModule.java:100) at org.basex.http.web.WebModule.parse(WebModule.java:57) at org.basex.http.web.WebModules.parse(WebModules.java:376) at org.basex.http.web.WebModules.parse(WebModules.java:367) at org.basex.http.web.WebModules.parse(WebModules.java:367) at org.basex.http.web.WebModules.cache(WebModules.java:336) at org.basex.http.web.WebModules.find(WebModules.java:149) at org.basex.http.web.WebModules.restxq(WebModules.java:116) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:44) at org.basex.http.BaseXServlet.service(BaseXServlet.java:69) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:587) at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1410) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:529) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:598) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1381) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1303) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) at org.eclipse.jetty.server.Server.handle(Server.java:563) at org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:287) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100) at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:199) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149) at java.base/java.lang.Thread.run(Unknown Source) mvgr. Rob Stapper

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Alternatives to JTattoo in combination with BaseX GUI?
by Zimmel, Daniel 03 Sep '24

03 Sep '24

Hi, I noticed that JTattoo is no longer working properly with BaseX 11 (which is not a surprise because it looks like an abandoned project). I liked to use it to force a dark theme to the GUI. Does anybody know of alternatives? Are there any? Thanks, Daniel

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xquery insert via REST API
by Liedtke, Alexander 28 Aug '24

28 Aug '24

Hallo in die Runde, vielleicht kann mir hierzu jmd einen Tipp geben. Ich nutze die Rest API um via post xqueries (mit python requests) zu machen - das klappt mit z.B. replace auch problemlos. Gerne würde ich jedoch auch insert nutzen - allerdings bekomme ich hier grundsätzlich eine 500 response. Die query mache ich gemäß der Doku nach dem Beispielschema: insert nodes (<phone/>, <mail/>) into //name In den Logs von dba sehe ich hierzu nichts. Ich bekomme auch sonst keine Info auf der shell in Form einer Fehlermeldung. Der Test Request sieht wie folgt aus: xq = '<query><text> insert node <test/> into //object[@id="574"]</text></query>' url = 'http://localhost:8080/rest/ids/ObjectIDs.xml' header = {'Media-Type': 'application/xml', 'charset':'utf-8'} res = requests.post(url, headers=header, data=xq, auth=_auth.getBaseXAuth()) Hat hierzu vielleicht jemand Anmerkungen / Ideen? Vielen Dank im Voraus Alexander Liedtke

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Basex java.lang.ArrayIndexOutOfBoundsException
by Chavez, Robert 19 Aug '24

19 Aug '24

Greetings, We are suddenly seeing the following error message when using the REST API and also when using to Web GUI when trying to list the contents of a database by clicking on the database name and also when clicking on “optimize” (screen shot of gui attached). Does anyone have experience with hw to handle this? Version: BaseX 10.4 Java: Amazon.com Inc., 17.0.12 OS: Linux, amd64 Thank you, Robert Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de<mailto:basex-talk@mailman.uni-konstanz.de> Version: BaseX 10.4 Java: Amazon.com Inc., 17.0.12 OS: Linux, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: Index 2147483647 out of bounds for length 17322 at org.basex.io.random.TableDiskAccess.fpre(TableDiskAccess.java:514) at org.basex.io.random.TableDiskAccess.cursor(TableDiskAccess.java:474) at org.basex.io.random.TableDiskAccess.read5(TableDiskAccess.java:180) at org.basex.data.Data.textRef(Data.java:467) at org.basex.data.DiskData.text(DiskData.java:272) at org.basex.query.func.db.DbListDetails$2.get(DbListDetails.java:96) at org.basex.query.func.db.DbListDetails$2.get(DbListDetails.java:1) at org.basex.query.func.fn.FnSubsequence.value(FnSubsequence.java:108) at org.basex.query.expr.IterMap.value(IterMap.java:106) at org.basex.query.expr.gflwor.Let$LetEval.next(Let.java:146) at org.basex.query.expr.gflwor.GFLWOR$1.next(GFLWOR.java:78) at org.basex.query.QueryContext.next(QueryContext.java:375) at org.basex.query.expr.constr.Constr.add(Constr.java:73) at org.basex.query.expr.constr.CElem.item(CElem.java:149) at org.basex.query.expr.constr.CElem.item(CElem.java:1) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:51) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:46) at org.basex.query.expr.constr.Constr.add(Constr.java:72) at org.basex.query.expr.constr.CElem.item(CElem.java:149) at org.basex.query.expr.constr.CElem.item(CElem.java:1) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:51) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:46) at org.basex.query.expr.List$1.iter(List.java:213) at org.basex.query.expr.List$1.next(List.java:181) at org.basex.query.QueryContext.next(QueryContext.java:375) at org.basex.query.expr.constr.Constr.add(Constr.java:73) at org.basex.query.expr.constr.CElem.item(CElem.java:149) at org.basex.query.expr.constr.CElem.item(CElem.java:1) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:51) at org.basex.query.func.StaticFuncCall.evalArgs(StaticFuncCall.java:147) at org.basex.query.func.FuncCall.value(FuncCall.java:53) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:46) at org.basex.query.expr.gflwor.GFLWOR$1.next(GFLWOR.java:82) at org.basex.query.scope.MainModule$1.next(MainModule.java:55) at org.basex.http.restxq.RestXqResponse.serialize(RestXqResponse.java:79) at org.basex.http.web.WebResponse.create(WebResponse.java:58) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:72) at org.basex.http.BaseXServlet.service(BaseXServlet.java:69) at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:840)

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recursively used variables
by Rob Stapper 12 Aug '24

12 Aug '24

Hi, The code[1] below and send as attachment generates a error message: “Static variable depends on itself: $Q{http://www.w3.org/2005/xquery-local-functions}test”. I use these variables to refer to my private functions in my modules so I can easyly refer to them in a inheritance situation. It’s not a big problem for me but I was wondering if the error-triggering is justified or that it should work. [1]=========================================== declare variable $local:test := local:test#1 ; declare %private function local:test( $i) { if ( $i > 0) then $local:test( $i - 1) } ; $local:test( 10) =========================================== Kind regards, Rob Stapper Sent from Mail for Windows 10 -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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Bug report
by Csaba Fekete 12 Aug '24

12 Aug '24

Hello The following works on Basex 10.7 but fails on Basex 11.1. The command I'm trying to run is: /opt/basex/bin/basex -v -c'OPEN mydb; ADD "/tmp/ZTH4ZRO.xml"' I've attached the XML file.The output I'm getting: Database 'mydb' was opened in 54.52 ms. Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 11.1 Java: Ubuntu, 11.0.19 OS: Linux, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: arraycopy: length -1 is negative at java.base/java.lang.System.arraycopy(Native Method) at org.basex.util.Array.insert(Array.java:99) at org.basex.util.list.ObjectList.insert(ObjectList.java:153) at org.basex.index.resource.Docs.insert(Docs.java:166) at org.basex.index.resource.Resources.insert(Resources.java:71) at org.basex.data.Data.indexAdd(Data.java:1098) at org.basex.data.Data.insert(Data.java:836) at org.basex.query.up.atomic.Insert.apply(Insert.java:44) at org.basex.query.up.atomic.AtomicUpdateCache.applyUpdates(AtomicUpdateCache.java:291) at org.basex.query.up.atomic.AtomicUpdateCache.execute(AtomicUpdateCache.java:275) at org.basex.core.cmd.Add.lambda$run$0(Add.java:62) at org.basex.core.cmd.ACreate.update(ACreate.java:90) at org.basex.core.cmd.Add.run(Add.java:56) at org.basex.core.Command.run(Command.java:233) at org.basex.core.Command.execute(Command.java:93) at org.basex.api.client.LocalSession.execute(LocalSession.java:131) at org.basex.api.client.Session.execute(Session.java:36) at org.basex.core.CLI.execute(CLI.java:94) at org.basex.core.CLI.execute(CLI.java:78) at org.basex.core.CLI.execute(CLI.java:65) at org.basex.BaseX.<init>(BaseX.java:82) at org.basex.BaseX.main(BaseX.java:44)

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