BaseX-Talk

basex-talk@mailman.uni-konstanz.de

6 participants
5250 discussions

read grant to anonymous user
by raffaele messuti 08 Sep '16

08 Sep '16

hi, i'm quite a newbie to basex (and generally xquery) a simple question (i'm not finding answers in the wiki): how i can grant a read permission to an anonymous (no password) user? the common use case is to access raw xml files via rest /rest/{db}/{file.xml}. this don't work: > grant read on [db] to * Admin user cannot be modified. as a solution i was thinking to proxy basex through nginx and use "proxy_set_header Authorization" thanks PS/ my first attempt to learn xquery is here, into a jupyter notebook maybe is interesting for someone: https://github.com/atomotic/bni-xquery/blob/master/bni-xquery.ipynb -- raffaele

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Upgrade from 7.9 to 8.3
by Bram Vanroy 07 Sep '16

07 Sep '16

Hi everyone We're in a bit of a pickle. We upgraded to BaseX 8.3 after some hard drives failed, but now the PHP Basex client can't connect to the server any more. Here is the general idea: - basexserver is launched from server A, but the .basex configuration file it uses is stored on server B. This is the unchanged file we used in BaseX 7.9; - the data that the .basex file refers to is on server C, this has not changed either since the hard drive crash; - the PHP basex client is on server D, this file has not been changed either. So I am guessing that either we need to update one of our files, OR we'd need to re-import our data into the new BaseX server. Do you have any idea how to handle this? Kind regards Bram

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Re: [basex-talk] REST API performance, massive disk IO
by Jens Erat 06 Sep '16

06 Sep '16

Hi Benedikt, sorry for not answering for a week. > our storage driver is the default aufs: > > Storage Driver: aufs > Root Dir: /var/lib/docker/aufs > Backing Filesystem: extfs > Dirs: 189 > Dirperm1 Supported: false > > ... based on ext4, also with default option (journaling only on metadata). That should be fine. Copy on write file systems in general require some attention when using databases (and other applications with massive small writes), but you don't use one (so you shouldn't have an issue with the file system here). > However, we have a persistent volume for the BaseX database files pointed to a regular folder on the host (ext4). To my understanding the storage driver isn't used in this case. You're right. > Is there a recommendation for a basex filesystem? The file system is not too important, as long as no copy on write is applied (chattr +t for BTRFS, but read up on that before using it). Ext4, XFS, ... should not require any special attention. I'm not aware anybody every considered different file systems and BaseX performance in a reasonable benchmark yet, but BaseX' access patterns do not differ substantially from other database systems. Regards, Jens -- Jens Erat Universität Konstanz Kommunikations-, Infomations-, Medienzentrum (KIM) Abteilung Basisdienste D-78457 Konstanz Mail: jens.erat(a)uni-konstanz.de

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question on starting multiple instance of basex
by Wang, Genneva 04 Sep '16

04 Sep '16

Hi I’m trying to set up to having multiple instance of basex in my local dev environment, presumably to simulate production environment where our application is pointing to two different basex that running a different server. I’ve running basex as client server application in dev environment. Is there a way to do that? I’ve tried to start basex server with 2 different ports A and B, and also starting client with port A and B, but both seemed to be pointing to the same list of the databases that was created. Any tips would be greatly appreciated. Thanks! Regards, -Genneva

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Fwd: REST API not working
by E. Wray Johnson 02 Sep '16

02 Sep '16

C:\Users\Administrator>basexserver -d BaseX 8.5.3 [Server] Server was started (port: 1984). On Thu, Sep 1, 2016 at 5:13 AM, Dirk Kirsten <dk(a)basex.org> wrote: > Hello, > > How do you start the basex server? Could you please start it in debug mode > and post us the console output? > Cheers, Dirk > > > On 08/31/2016 04:41 PM, E. Wray Johnson wrote: > > I apologize, by 12 I meant Windows Server 2012. > BaseX version is 8.5.3 > By TCP vs REST I mean for REST I was using default port 8984 instead of > the default server TCP port 1984 > For example: http://*admin*:*admin*@localhost:8984/*rest *OR > http://localhost:8984/ > *rest * > I run basexserver from DOS Command Prompt > *. * > I am using a web browser to test as I have many times before with version > 8.4 > I know the server is listening because it hangs and does not return, which > does not occur when the server is stopped. > > On Wed, Aug 31, 2016 at 9:15 AM, Dirk Kirsten <dk(a)basex.org> wrote: > >> Hello, >> >> Windows 12? I am an long-time linux-only user, but isn't the most >> current windows version 10 or am I missing the news completely? >> >> You will have to be much more specific. Please specify which BaseX >> version you use, please post how you start the basexserver and the >> console output and how you try to reach the REST endpoint. Also, I don't >> know what you mean by you are not confusing TCP and REST port. This >> statement doesn't really make sense, as REST uses TCP... >> >> Cheers >> >> Dirk >> >> >> On 08/31/2016 02:09 PM, E. Wray Johnson wrote: >> > Windows 12 server, running basexserver. Server is listening but hangs >> and never returns anything. When server is killed behavior is different so >> I can tell the server was listening on the REST port when running. I am >> not confusing the TCP port with REST port. >> >> -- >> Dirk Kirsten, BaseX GmbH, http://basexgmbh.de >> |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz >> |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: >> | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle >> `-- Phone: 0049 7531 91 68 276, Fax: 0049 7531 20 05 22 >> >> > > > -- > Dirk Kirsten, BaseX GmbH, http://basexgmbh.de > |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz > |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: > | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle > `-- Phone: 0049 7531 91 68 276, Fax: 0049 7531 20 05 22 > >

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post about basex and parse trees
by Stefan Petrea 01 Sep '16

01 Sep '16

Hey, Recently worked on a project using BaseX [2]. I wrote a blog post about it here [1]. Something that might be interesting is building a Merkle tree [3] [4] in XQuery and storing/querying it in BaseX. [1] https://blog.garage-coding.com/2016/09/01/detecting-potentially-malicious-p… [2] https://github.com/wsdookadr/mdetect [3] https://github.com/wsdookadr/mdetect/blob/master/resources/mast.xql [4] https://en.wikipedia.org/wiki/Merkle_tree

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Re: [basex-talk] REST API not working
by E. Wray Johnson 01 Sep '16

01 Sep '16

I apologize, by 12 I meant Windows Server 2012. BaseX version is 8.5.3 By TCP vs REST I mean for REST I was using default port 8984 instead of the default server TCP port 1984 For example: http://*admin*:*admin*@localhost:8984/*rest *OR http://localhost:8984/ *rest* I run basexserver from DOS Command Prompt *.* I am using a web browser to test as I have many times before with version 8.4 I know the server is listening because it hangs and does not return, which does not occur when the server is stopped. On Wed, Aug 31, 2016 at 9:15 AM, Dirk Kirsten <dk(a)basex.org> wrote: > Hello, > > Windows 12? I am an long-time linux-only user, but isn't the most > current windows version 10 or am I missing the news completely? > > You will have to be much more specific. Please specify which BaseX > version you use, please post how you start the basexserver and the > console output and how you try to reach the REST endpoint. Also, I don't > know what you mean by you are not confusing TCP and REST port. This > statement doesn't really make sense, as REST uses TCP... > > Cheers > > Dirk > > > On 08/31/2016 02:09 PM, E. Wray Johnson wrote: > > Windows 12 server, running basexserver. Server is listening but hangs > and never returns anything. When server is killed behavior is different so > I can tell the server was listening on the REST port when running. I am > not confusing the TCP port with REST port. > > -- > Dirk Kirsten, BaseX GmbH, http://basexgmbh.de > |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz > |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: > | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle > `-- Phone: 0049 7531 91 68 276, Fax: 0049 7531 20 05 22 > >

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Problems with 8.5.3
by Marco Lettere 31 Aug '16

31 Aug '16

Hi all, after passing to 8.5.3 we have several points in our current application that stop working. The first one refers to the use of sql module. The following query worked neatly in previous version 8.5.1 beta .... let $init := sql:init("com.mysql.jdbc.Driver") let $connection := sql:connect("jdbc:mysql://localhost:3306/adb?useSSL=false", "user", "pass") return (sql:execute($connection, "select 1 + 1 from dual"), sql:close($connection)) returns: <sql:row xmlns:sql="http://basex.org/modules/sql"> <sql:column name="1 + 1">2</sql:column> </sql:row> In 8.5.3 we get the following stacktrace: Version: BaseX 8.5.3 Java: Oracle Corporation, 1.8.0_91 OS: Windows 7, x86 Stack Trace: java.lang.RuntimeException: Class org.basex.query.QueryResources can not access a member of class org.basex.query.func.sql.JDBCConnections with modifiers "" at org.basex.util.Util.notExpected(Util.java:62) at org.basex.query.QueryResources.index(QueryResources.java:121) at org.basex.query.func.sql.SqlFn.jdbc(SqlFn.java:36) at org.basex.query.func.sql.SqlConnect.item(SqlConnect.java:35) [….] We have also an issue with executing xquery:invoke on -xqm files that are stored in subdirectories of the invoking module. But I still have to repdroduce a SSCE first. Thanks for any support. Regards, Marco.

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REST API not working
by E. Wray Johnson 31 Aug '16

31 Aug '16

Windows 12 server, running basexserver. Server is listening but hangs and never returns anything. When server is killed behavior is different so I can tell the server was listening on the REST port when running. I am not confusing the TCP port with REST port.

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Basex server ports
by Bram Vanroy 31 Aug '16

31 Aug '16

Hi all I am trying to initialise multiple server on a single machine. This will probably be possibly by listening to different ports. The question that I have is that I am not sure which values to change in the .basex file. Candidates are: PORT SERVERPORT EVENTPORT STOPPORT Which of these cannot be the same when running a BaseX server on the same machine? Thank you in advance Bram Vanroy

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