Hi,
We have used GeoServer for quite a while for serving large scanned maps
over WMS, however we've noticed important performance issues after
upgrading to 2.14.1, with constant memory and CPU load with no apparent
relation to incoming request. While profiling the Tomcat instance we
noticed that few of the connectors were constantly allocating memory though
there was no active connection, and probing the threads we noticed they
spent most of the time calling some JAI function. This behaviour appeared
at random times after every server restart, but stopped once we removed JAI
jars from the classpath. Is there any known issue with using JAI in
GeoServer 2.14.1?
This is the relevant part of misbehaving thread:
...
at
com.sun.media.jai.opimage.MosaicOpImage.computeTile(MosaicOpImage.java:442)
at
com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java:904)
at javax.media.jai.OpImage.getTile(OpImage.java:1129)
at javax.media.jai.PlanarImage.cobbleByte(PlanarImage.java:2850)
at javax.media.jai.PlanarImage.getData(PlanarImage.java:2169)
at javax.media.jai.PlanarImage.getData(PlanarImage.java:2016)
at javax.media.jai.RenderedOp.getData(RenderedOp.java:2266)
at
it.geosolutions.imageio.plugins.png.ScanlineProviderFactory.getProvider(ScanlineProviderFactory.java:53)
at
it.geosolutions.imageio.plugins.png.PNGWriter.isScanlineSupported(PNGWriter.java:129)
at org.geoserver.wms.map.png.PNGJWriter.writePNG(PNGJWriter.java:38)
...
System configuration:
JAI version: 1.1.3 linux-amd64
JAI ImageIO: 1.1 linux-amd64
- GeoServer Version 2.14.1 (rev 499990d642d60e6043f3d44deb26ac6172a4e885)
- GeoTools Version 20.1 (rev ef377c748a46efd4a84bfa0df939aac71ade0863)
- GeoWebCache Version 1.14.1 (rev
1.14.x/4bb10e75710629ad5571e69b75684cf49256ad67)
-
Installed extensions:
GeoWeb Cache gs-gwc 2.14.1
GeoServer KML gs-kml 2.14.1
GeoServer libjpeg-turbo Module libjpeg-turbo
RenderedImageMapResponse 2.14.1
GeoServer Main gs-main 2.14.1
Rendering Engine jvm java2d 1.8.0_131
GeoServer Security JDBC gs-sec-jdbc 2.14.1
GeoServer Security LDAP gs-sec-ldap 2.14.1
GeoServer Web Coverage Service gs-wcs 2.14.1
GeoServer Web Coverage Service 1.0 gs-wcs1_0 2.14.1
GeoServer Web Coverage Service 1.1 gs-wcs1_1 2.14.1
GeoServer Web Coverage Service 2.0 gs-wcs2_0 2.14.1
GeoServer Web UI Core gs-web-core 2.14.1
GeoServer Web Demos gs-web-demo 2.14.1
GeoServer Web UI GeoWebCache gs-web-gwc 2.14.1
GeoServer Web REST gs-web-rest 2.14.1
GeoServer Web UI Security Core gs-web-sec-core 2.14.1
GeoServer Web UI Security JDBC gs-web-sec-jdbc 2.14.1
GeoServer Web UI Security LDAP gs-web-sec-ldap 2.14.1
GeoServer Web UI Web Coverage Service gs-web-wcs 2.14.1
GeoServer Web UI Web Feature Service gs-web-wfs 2.14.1
GeoServer Web UI Web Map Service gs-web-wms 2.14.1
GeoServer Web UI Web Processing Service gs-web-wps 2.14.1
GeoServer Web Feature Service gs-wfs 2.14.1
GeoServer Web Map Service gs-wms 2.14.1
GeoServer Web Processing Service Core gs-wps-core 2.14.1
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
Java options
-Djava.awt.headless=true
-Xmx128m
-XX:+UseConcMarkSweepGC
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Xms4096m
-Xmx4096m
-XX:MaxPermSize=1024m
-Xmx4096m
-Xss1024k
-XX:+UseParNewGC
-XX:MaxGCPauseMillis=1500
-XX:GCTimeRatio=9 -server
-XX:+DisableExplicitGC
-XX:NewRatio=2
-XX:+AggressiveOpts
-DGEOSERVER_DATA_DIR=/var/www/geoserver_data
-Xbootclasspath/a:/var/lib/tomcat7/webapps/geoserver/WEB
-INF/lib/marlin-0.7.5-Unsafe.jar
-Dsun.java2d.renderer=org.marlin.pisces.PiscesRenderingEngine
-Dsun.java2d.renderer.useThreadLocal=false
-Djava.library.path=/opt/libjpeg-turbo/lib64:/usr/lib
-Djava.endorsed.dirs=/usr/share/tomcat7
/endorsed
-classpath/usr/share/tomcat7/bin/bootstrap.jar:/usr/share/tomcat7/bin/tomcat-juli.jar
-Dcatalina.base=/var/lib/tomcat7
-Dcatalina.home=/usr/share/tomcat7
-Djava.io.tmpdir=/tmp/tomcat7-tomcat7-tmp
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.5 LTS"
NAME="Ubuntu"
VERSION="12.04.5 LTS, Precise Pangolin"
Thanks,
Daniel Urda
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