Java Mapscript

Fri Sep 22 09:38:18 EDT 2006

Frederico,
are you sharing the same map object among threads i.e. you have one
mapObj per web application that is shared between all users or you
reuse the mapserver objects across http requests?

The recommended (and so far the only known to work in webapps) is to
create a new mapObj with every request. The overhead is unnoticeable.

Umberto

On 9/21/06, Frederico Lucca <fredlucca at gmail.com> wrote:
> Umberto,
>
> Here are the information that I can give.
>
> Linux porto 2.4.29 #25 Thu Jan 20 17:21:56 PST 2005 i686 unknown unknown
> GNU/Linux
>
> gcc (GCC) 3.3.4
>
> MapServer version 4.8.4 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
> OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER
> SUPPORTS=THREADS INPUT=EPPL7 INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
>
> java version "1.5.0_06"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
> Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing)
>
> SWIG Version 1.3.29
> Compiled with g++ [i686-pc-linux-gnu]
>
> gdal 1.3.2
>
> proj 4.4.9
>
> tomcat 5.5.9
>
> I configure --with-threads --with-ogr --with-gdal --with-proj
>
> The code is simple like open, setExtent, draw
>
> Best Regards,
>
> Fred
>
>
>  On 9/21/06, Umberto Nicoletti <umberto.nicoletti at gmail.com> wrote:
> > On 9/21/06, Frederico Lucca <fredlucca at gmail.com> wrote:
> > > Hello list,
> > >
> > > I'm having trouble with mapserver and java mapscript, my tomcat broke
> with
> > > this error after some requests.
> > > Could someone help me?
> >
> > I would, but I need more details. There is a java mapscript doc on
> > mapserver web site that has a section exactly about what you need to
> > tell us to help us help you ;-).
> >
> > Umberto
> >
> > >
> > > Best Regards,
> > >
> > > Fred
> > >
> > > #
> > > # An unexpected error has been detected by HotSpot Virtual Machine:
> > >
> > > #
> > > # SIGSEGV (0xb) at pc=0x400eb3fd, pid=17455, tid=376856
> > > #
> > > # Java VM: Java HotSpot(TM) Client VM (1.5.0_06-b05 mixed mode, sharing)
> > > # Problematic frame:
> > > # C [libc.so.6+0x683fd] mempcpy+0x2d
> > > #
> > >
> > >
> > > --------------- T H R E A D ---------------
> > >
> > > Current thread (0x08204c28): JavaThread "http-8080-Processor15" daemon
> > > [_thread_in_native, id=17480]
> > >
> > > Stack: [0xbca01000,0xbcc00000), sp=0xbcbfe21c, free space=2036k
> > >
> > > Native frames: (J=compiled Java code, j=interpreted, Vv=VM code,
> C=native
> > > code)
> > > C [libc.so.6+0x683fd] mempcpy+0x2d
> > > C [libc.so.6+0x5dba3]
> > > C [libc.so.6+0x5ee48] _IO_sgetn+0x28
> > > C [ libc.so.6+0x539f4] _IO_fread+0x74
> > >
> > > C [libmapscript.so+0x545d5] msSHPOpen+0x425
> > > C [libmapscript.so+0x562a9] msSHPOpenFile+0x59
> > > C [libmapscript.so+0x57de1] msShapeFileLayerOpen+0x91
> > > C [ libmapscript.so+0x80d11] msLayerOpen+0x71
> > > C [libmapscript.so+0x8c3f6
> > > ] msDrawVectorLayer+0xe6
> > > C [libmapscript.so+0x8c155] msDrawLayer+0x95
> > > C [libmapscript.so+0x8b9de] msDrawMap+0x42e
> > > C [ libmapscript.so+0x2c59c]
> > > C [libmapscript.so+0x3e825]
> > >
> Java_edu_umn_gis_mapscript_mapscriptJNI_mapObj_1draw+0x35
> > >
> > > j edu.umn.gis.mapscript.mapscriptJNI.mapObj_draw(J)J+0
> > > j
> > > edu.umn.gis.mapscript.mapObj.draw
> ()Ledu/umn/gis/mapscript/imageObj;+4
> > > j
> > >
> br.com.multispectral.mapapp.MapServerApp.export(Ljava/lang/String;)V+4
> > > j TileServer.exportExact
> > >
> (Lbr/com/multispectral/mapapp/MapServerApp;DDDLjava/lang/String;II)V+61
> > > j
> > >
> TileServer.processRequest(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+248
> > > j
> > >
> TileServer.doPost(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3
> > >
> > > j
> > >
> javax.servlet.http.HttpServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+139
> > > j
> > >
> javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
> > >
> > > j
> > >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+354
> > > j
> > >
> org.apache.catalina.core.ApplicationFilterChain.doFilter
> (Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101
> > >
> > > j
> > >
> org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+670
> > > j
> > >
> org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+285
> > >
> > > j
> > > org.apache.catalina.core.StandardHostValve.invoke
> (Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+64
> > > j
> > >
> org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+6
> > >
> > > j
> > >
> org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+42
> > > j
> > > org.apache.catalina.connector.CoyoteAdapter.service
> (Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+141
> > >
> > > j
> > >
> org.apache.coyote.http11.Http11Processor.process(Ljava/io/InputStream;Ljava/io/OutputStream;)V+521
> > > j
> > >
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection
> (Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+113
> > >
> > > j
> > >
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(Ljava/net/Socket;Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+45
> > > j
> > >
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt([Ljava/lang/Object;)V+102
> > >
> > > j
> > >
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
> > > j java.lang.Thread.run ()V+11
> > > v ~StubRoutines::call_stub
> > > V [libjvm.so+0x174fec]
> > > V [libjvm.so+0x2821f8]
> > > V [libjvm.so+0x174845]
> > >
> > > V [libjvm.so+0x1748de]
> > > V [libjvm.so+0x1ebee5]
> > > V [libjvm.so+0x2ea563 ]
> > > V [libjvm.so+0x282d08]
> > > C [libpthread.so.0+0x654e]
> > >
> > > Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
> > >
> > > j edu.umn.gis.mapscript.mapscriptJNI.mapObj_draw(J)J+0
> > > j
> > >
> edu.umn.gis.mapscript.mapObj.draw()Ledu/umn/gis/mapscript/imageObj;+4
> > > j
> > >
> br.com.multispectral.mapapp.MapServerApp.export(Ljava/lang/String;)V+4
> > > j TileServer.exportExact
> > >
> (Lbr/com/multispectral/mapapp/MapServerApp;DDDLjava/lang/String;II)V+61
> > > j
> > >
> TileServer.processRequest(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+248
> > > j
> > >
> TileServer.doPost(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3
> > >
> > > j
> > >
> javax.servlet.http.HttpServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+139
> > > j
> > >
> javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
> > >
> > > j
> > >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+354
> > > j
> > >
> org.apache.catalina.core.ApplicationFilterChain.doFilter
> (Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101
> > >
> > > j
> > >
> org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+670
> > > j
> > >
> org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+285
> > >
> > > j
> > > org.apache.catalina.core.StandardHostValve.invoke
> (Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+64
> > > j
> > >
> org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+6
> > >
> > > j
> > >
> org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+42
> > > j
> > > org.apache.catalina.connector.CoyoteAdapter.service
> (Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+141
> > >
> > > j
> > >
> org.apache.coyote.http11.Http11Processor.process(Ljava/io/InputStream;Ljava/io/OutputStream;)V+521
> > > j
> > >
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection
> (Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+113
> > >
> > > j
> > >
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(Ljava/net/Socket;Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+45
> > > j
> > >
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt([Ljava/lang/Object;)V+102
> > >
> > > j
> > >
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
> > > j java.lang.Thread.run ()V+11
> > > v ~StubRoutines::call_stub
> > >
> > > 40000000-40015000 r-xp 00000000 08:01 12210 /lib/ld-
> > > 2.3.4.so
> > > 40015000-40017000 rw-p 00014000 08:01 12210 /lib/ld- 2.3.4.so
> > > 40017000-40018000 r--p 00000000 00:00 0
> > > 40018000-40019000 rwxp 00001000 00:00 0
> > > 40019000-4001f000 r-xp 00000000 08:01 144145
> > >
> /usr/lib/jdk1.5.0_06/jre/lib/i386/native_threads/libhpi.so
> > >
> > > 4001f000-40020000 rw-p 00006000 08:01 144145
> > >
> /usr/lib/jdk1.5.0_06/jre/lib/i386/native_threads/libhpi.so
> > > 40020000-40027000 r-xp 00000000 08:01 12445 /lib/libnss_compat- 2.3.4.so
> > >
> > > 40027000-40029000 rw-p 00006000 08:01 12445 /lib/libnss_compat-2.3.4.so
> > > 40029000-4002b000 r--s 00000000 08:01 149512
> > > /usr/lib/jdk1.5.0_06/jre/lib/ext/dnsns.jar
> > > 4002b000-4002c000 rw-p 00000000 00:00 0
> > >
> > > 4002c000-4003a000 r-xp 00000000 08:01 12452 /lib/libpthread-0.10.so
> > > 4003a000-4003c000 rw-p 0000d000 08:01 12452 /lib/libpthread- 0.10.so
> > > 4003c000-4007e000 rw-p 00000000 00:00 0
> > >
> > > 4007e000-40080000 r-xp 00000000 08:01 12441 /lib/libdl-2.3.4.so
> > > 40080000-40082000 rw-p 00001000 08:01 12441 /lib/libdl- 2.3.4.so
> > > 40082000-40083000 rw-p 00000000 00:00 0
> > >
> > > 40083000-40199000 r-xp 00000000 08:01 12438 /lib/libc-2.3.4.so
> > > 40199000-4019a000 ---p 00116000 08:01 12438 /lib/libc- 2.3.4.so
> > > 4019a000-4019b000 r--p 00116000 08:01 12438 /lib/libc-
> > > 2.3.4.so
> > > 4019b000-4019e000 rw-p 00117000 08:01 12438 /lib/libc- 2.3.4.so
> > > 46862000-46863000 r-xp 00000000 08:01 12419 /usr/lib/gconv/ISO8859-1.so
> > >
> > > 46863000-46864000 ---p 00001000 08:01 12419 /usr/lib/gconv/ISO8859-1.so
> > > 46864000-46866000 rw-p 00001000 08:01 12419 /usr/lib/gconv/ISO8859- 1.so
> > > 46874000-4688f000 r-xp 00000000 08:02 521 /usr/local/lib/libgd.so.2.0.0
> > >
> > > 4688f000-468af000 rw-p 0001a000 08:02 521 /usr/local/lib/libgd.so.2.0.0
> > > 468af000-468c3000 rw-p 00000000 00:00 0
> > > 468c3000-468df000 r-xp 00000000 08:01 201 /usr/lib/libjpeg.so.62.0.0
> > > 468df000-468e0000 rw-p 0001b000 08:01 201 /usr/lib/libjpeg.so.62.0.0
> > >
> > > 468e0000-468f0000 r-xp 00000000 08:01 59294 /usr/lib/libz.so.1.2.2
> > > 468f0000-468f1000 rw-p 0000f000 08:01 59294 /usr/lib/libz.so.1.2.2
> > > 468f1000-468f8000 r-xp 00000000 08:01 194 /usr/lib/libgcc_s.so.1
> > >
> > > 468f8000-468f9000 rw-p 00007000 08:01 194 /usr/lib/libgcc_s.so.1
> > > 468f9000-468ff000 r-xp 00000000 08:01 52949 /usr/lib/libungif.so.4.1.2
> > > 468ff000-46900000 rw-p 00006000 08:01 52949 /usr/lib/libungif.so.4.1.2
> > >
> > > 46900000-469fb000 rw-p 000c4000 00:00 0
> > > 469fb000-46a00000 ---p 000e5000 00:00 0
> > > 46a00000-46af4000 r-xp 00000000 08:02 1019
> /usr/local/lib/libmapscript.so
> > > 46af4000-46af8000 rw-p 000f3000 08:02 1019
> /usr/local/lib/libmapscript.so
> > >
> > > 46af8000-46afa000 rw-p 00000000 00:00 0
> > > 46afa000-46b5b000 r-xp 00000000 08:02 1035
> > > /usr/local/lib/libfreetype.so.6.3.10
> > > 46b5b000-46b5e000 rw-p 00061000 08:02 1035
> > > /usr/local/lib/libfreetype.so.6.3.10
> > >
> > > 46b5e000-46b8e000 r-xp 00000000 08:01 210 /usr/lib/libpng.so.3.1.2.8
> > > 46b8e000-46b8f000 rw-p 0002f000 08:01 210 /usr/lib/libpng.so.3.1.2.8
> > > 46b8f000-46bc4000 r-xp 00000000 08:02 383
> /usr/local/lib/libproj.so.0.5.0
> > >
> > > 46bc4000-46bc6000 rw-p 00035000 08:02 383
> /usr/local/lib/libproj.so.0.5.0
> > > 46bc6000-46edd000 r-xp 00000000 08:02 4586
> > > /usr/local/lib/libgdal.so.1.10.0
> > > 46edd000-46f32000 rw-p 00316000 08:02 4586
> > > /usr/local/lib/libgdal.so.1.10.0
> > >
> > > 46f32000-46f47000 rw-p 00000000 00:00 0
> > > 46f47000-46fe2000 r-xp 00000000 08:01 141965 /usr/lib/libstdc++.so.5.0.6
> > > 46fe2000-46ff9000 rw-p 0009b000 08:01 141965 /usr/lib/libstdc++.so.5.0.6
> > > 46ff9000-46ffe000 rw-p 00000000 00:00 0
> > >
> > > 46ffe000-4700c000 r-xp 00000000 08:01 69690
> /usr/X11R6/lib/libXpm.so.4.11
> > > 4700c000-4700d000 rw-p 0000e000 08:01 69690
> /usr/X11R6/lib/libXpm.so.4.11
> > > 4700d000-470d3000 r-xp 00000000 08:01 69832 /usr/X11R6/lib/libX11.so.6.2
> > >
> > > 470d3000-470d7000 rw-p 000c6000 08:01 69832 /usr/X11R6/lib/libX11.so.6.2
> > > 470d7000-470fa000 r-xp 00000000 08:01 69699
> > > /usr/X11R6/lib/libfontconfig.so.1.0.4
> > > 470fa000-470fd000 rw-p 00022000 08:01 69699
> > > /usr/X11R6/lib/libfontconfig.so.1.0.4
> > >
> > > 470fd000-470fe000 rw-p 00000000 00:00 0
> > > 470fe000-4712e000 r-xp 00000000 08:01 184 /usr/lib/libpng12.so.0.1.2.8
> > > 4712e000-4712f000 rw-p 0002f000 08:01 184 /usr/lib/libpng12.so.0.1.2.8
> > > 4712f000-4724f000 r-xp 00000000 08:02 4327
> > > /usr/local/lib/libNCSEcw.so.0.0.0
> > >
> > > 4724f000-47258000 rw-p 00120000 08:02 4327
> > > /usr/local/lib/libNCSEcw.so.0.0.0
> > > 47258000-47265000 rw-p 00000000 00:00 0
> > > 47265000-47279000 r-xp 00000000 08:02 4339
> > > /usr/local/lib/libNCSCnet.so.0.0.0
> > >
> > > 47279000-4727a000 rw-p 00014000 08:02 4339
> > > /usr/local/lib/libNCSCnet.so.0.0.0
> > > 4727a000-47299000 r-xp 00000000 08:02 4334
> > > /usr/local/lib/libNCSUtil.so.0.0.0
> > > 47299000-4729b000 rw-p 0001e000 08:02 4334
> > > /usr/local/lib/libNCSUtil.so.0.0.0
> > >
> > > 4729b000-4729c000 rw-p 00000000 00:00 0
> > > 4729c000-472e7000 r-xp 00000000 08:01 52823 /usr/lib/libtiff.so.3.7.1
> > > 472e7000-472e9000 rw-p 0004a000 08:01 52823 /usr/lib/libtiff.so.3.7.1
> > >
> > > --------------- S Y S T E M ---------------
> > >
> > >
> > > OS:Linux
> > > uname:Linux 2.4.29 #25 Thu Jan 20 17:21:56 PST 2005 i686
> > > libc:glibc 2.3.4 linuxthreads-0.10 (fixed stack)
> > > rlimit: STACK 2044k, CORE 0k, NPROC 7168, NOFILE 1024, AS infinity
> > > load average:3.44 2.84
> > >  1.27
> > >
> > > CPU:total 1 family 15, cmov, cx8, fxsr, mmx, sse, sse2, ht
> > >
> > > Memory: 4k page, physical 904220k(52168k free), swap 2097136k(1994124k
> free)
> > >
> > > vm_info: Java HotSpot(TM) Client VM (1.5.0_06-b05) for linux-x86, built
> on
> > > Nov 10 2005 12:08:33 by java_re with gcc
> > > 3.2.1-7a (J2SE release)
> > >
> > >
> > >
> > > --
> > > "Everything under the sun is in tune
> > > But the sun is eclipsed by the moon"
> >
>
>
>
> --
>
>  "Everything under the sun is in tune
> But the sun is eclipsed by the moon"