sonar bulild sucess
but analysis error java.lang.OutOfMemoryError: Java heap space
set sonar.properties but not use
sonar.web.javaOpts=-Xmx6144m -Xms128m -XX:+HeapDumpOnOutOfMemoryError
sonar.ce.javaOpts=-Xmx6144m -Xms128m -XX:+HeapDumpOnOutOfMemoryErro
sonar.search.javaOpts=-Xms512m -Xmx6144m -XX:+HeapDumpOnOutOfMemoryError
check ui setting is not use
Increase the memory via the SONAR_SCANNER_OPTS environment variable:
export SONAR_SCANNER_OPTS="-Xmx512m"
On Windows environments, avoid the double-quotes, since they get misinterpreted and combine the two parameters into a single one.
set SONAR_SCANNER_OPTS=-Xmx512m
is unuseful ，mypoject is scan (by maven) sucess but SonarQube background task fails with an out-of-memory error.
https://docs.sonarqube.org/display/SONARqube71/Java+Process+Memory
As it is stated in official documentation,
You need to define SONAR_SCANNER_OPTS as environment variable with desired heap space.
Documentation link here
Related
I am getting an exception while exporting the data from Oracle database using Liquibase.
I have used below maven command
**mvn -e -X liquibase:generateChangeLog -Dliquibase.diffTypes=data -DargLine= "-Xms10G -Xmx 20G -XX:-UseGCOverheadLimit"**
last line I can see in the log before failing is,
[DEBUG] Executing with the 'jdbc' executor
When I checked the same in Java Visual VM, I found that **liquibase.change.ColumnConfig** class is consuming 80% of space, this is more likely a memory leakage issue.
On top of this when I checked the java memory space, I can see Old Gen space is utilized 100% and it never goes down after 50 mins of execution.
I would like to know is there a way to export a data for few specific tables, if so please help with the maven command. I tried out below, but it didn't work out for me.
**mvn -e -X liquibase:generateChangeLog -Dliquibase.diffTypes=data,table -Dliquibase.includeObjects="table:myTable" -DargLine= "-Xms10G -Xmx 20G -XX:-UseGCOverheadLimit"**
The version of Liquibase I am using is 4.2.0
Any help is highly appreciated.
arun#arun-admin:/usr/lib/apache-flume-1.6.0-bin/bin$ ./flume-ng agent --conf ./conf/ -f /usr/lib/apache-flume-1.6.0properties -Dflume.root.logger=DEBUG,console -n agent
Info: Including Hadoop libraries found via (/usr/share/hadoop/bin/hadoop) for HDFS access
Info: Excluding /usr/share/hadoop/share/hadoop/common/lib/slf4j-api-1.7.10.jar from classpath
Info: Excluding /usr/share/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar from classpath
Info: Including Hive libraries found via (/usr/lib/apache-hive-3.1.2-bin) for Hive access
+ exec /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Xmx20m -Dflume.root.logger=DEBUG,console -cp './conf/:/usr/lib/apache-flume-1.6.0-bin/lib/:/usr/share/hadoop/etc/hadoop:/usr/share/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/share/hadoop/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/usr/share/hadoop/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/usr/share/hadoop/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/usr/share/hadoop/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/usr/share/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/share/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-collections-3.2.2.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-io-2.4.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-lang-2.6.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-math3-3.1.1.jar:/usr/share/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/share/hadoop/share/hadoop/common/lib/curator-client-2.7.1.jar:/usr/share/hadoop/share/hadoop/common/lib/curator-framework-2.7.1.jar:/usr/share/hadoop/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/usr/share/hadoop/share/hadoop/common/lib/gson-2.2.4.jar:/usr/share/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/share/hadoop/share/hadoop/common/lib/hadoop-annotations-2.7.3.jar:/usr/share/hadoop/share/hadoop/common/lib/hadoop-auth-2.7.3.jar:/usr/share/hadoop/share/hadoop/common/lib/hamcrest-core-1.3.jar:/usr/share/hadoop/share/hadoop/common/lib/htrace-core-3.1.0-incubating.jar:/usr/share/hadoop/share/hadoop/common/lib/httpclient-4.2.5.jar:/usr/share/hadoop/share/hadoop/common/lib/httpcore-4.2.5.jar:/usr/share/hadoop/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/usr/share/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/usr/share/hadoop/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/usr/share/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/share/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/share/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/share/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/share/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/share/hadoop/share/hadoop/common/lib/jets3t-0.9.0.jar:/usr/share/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/share/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/share/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/share/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/share/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/share/hadoop/share/hadoop/common/lib/jsr305-3.0.0.jar:/usr/share/hadoop/share/hadoop/common/lib/junit-4.11.jar:/usr/share/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/share/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/share/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/share/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/share/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/share/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/share/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/share/hadoop/share/hadoop/common/lib/stax-api-1.0-2.jar:/usr/share/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/share/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/share/hadoop/share/hadoop/common/lib/zookeeper-3.4.6.jar:/usr/share/hadoop/share/hadoop/common/hadoop-common-2.7.3.jar:/usr/share/hadoop/share/hadoop/common/hadoop-common-2.7.3-tests.jar:/usr/share/hadoop/share/hadoop/common/hadoop-nfs-2.7.3.jar:/usr/share/hadoop/share/hadoop/common/jdiff:/usr/share/hadoop/share/hadoop/common/lib:/usr/share/hadoop/share/hadoop/common/sources:/usr/share/hadoop/share/hadoop/common/templates:/usr/share/hadoop/share/hadoop/hdfs:/usr/share/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/commons-io-2.4.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/htrace-core-3.1.0-incubating.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/netty-all-4.0.23.Final.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/usr/share/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/share/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.7.3.jar:/usr/share/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.7.3-tests.jar:/usr/share/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.7.3.jar:/usr/share/hadoop/share/hadoop/hdfs/jdiff:/usr/share/hadoop/share/hadoop/hdfs/lib:/usr/share/hadoop/share/hadoop/hdfs/sources:/usr/share/hadoop/share/hadoop/hdfs/templates:/usr/share/hadoop/share/hadoop/hdfs/webapps:/usr/share/hadoop/share/hadoop/yarn/lib/activation-1.1.jar:/usr/share/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/share/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/share/hadoop/share/hadoop/yarn/lib/commons-cli-1.2.jar:/usr/share/hadoop/share/hadoop/yarn/lib/commons-codec-1.4.jar:/usr/share/hadoop/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/usr/share/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/share/hadoop/share/hadoop/yarn/lib/commons-io-2.4.jar:/usr/share/hadoop/share/hadoop/yarn/lib/commons-lang-2.6.jar:/usr/share/hadoop/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/usr/share/hadoop/share/hadoop/yarn/lib/guava-11.0.2.jar:/usr/share/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/share/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/usr/share/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jersey-client-1.9.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jersey-json-1.9.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jettison-1.1.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jetty-6.1.26.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/usr/share/hadoop/share/hadoop/yarn/lib/jsr305-3.0.0.jar:/usr/share/hadoop/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/usr/share/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/share/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/share/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/share/hadoop/share/hadoop/yarn/lib/servlet-api-2.5.jar:/usr/share/hadoop/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/usr/share/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/share/hadoop/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/usr/share/hadoop/share/hadoop/yarn/lib/zookeeper-3.4.6-tests.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-registry-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.7.3.jar:/usr/share/hadoop/share/hadoop/yarn/lib:/usr/share/hadoop/share/hadoop/yarn/sources:/usr/share/hadoop/share/hadoop/yarn/test:/usr/share/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/junit-4.11.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.3-tests.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar:/usr/share/hadoop/share/hadoop/mapreduce/lib:/usr/share/hadoop/share/hadoop/mapreduce/lib-examples:/usr/share/hadoop/share/hadoop/mapreduce/sources:/usr/share/hadoop/contrib/capacity-scheduler/.jar:/usr/lib/apache-hive-3.1.2-bin/lib/*' -Djava.library.path=:/ usr/share/hadoop/lib org.apache.flume.node.Application -f
It is saying out of Memory error. Please change your Xmx value while running the application. Currently, you are giving 20MB by Xmx20m and maybe this much of memory is not enough to run this. Change it to higher value say 1000MB like this Xmx1000m and see if that helps.
You need to find the right value for this configuration. This can be done if you know the data size that has to flow. If you are unable to anticipate that then, trial and error is the only option.
You can try increasing heap size in your flume command by passing -Xmx512m. If you still face the same error pls try to increase heap size in flume command to -Xmx1000m.
I have a distributed Jmeter Master-Slave set up. On increasing the throughput to a higher number, I started getting OOM exception for heap space.
I found this post:
How to Increase Heap size
to increase the HEAP size in the jmeter.bat file (windows in my case). However for Jmeter slave machines we don't launch jmeter via jmeter.bat but rather via jmeter.server.bat file. I checked this file doesn't have any HEAP memory parameter.
Any suggestions on how to increase the Heap memory size on Slave instances?
Looking into jmeter-server.bat source code:
It respects JVM_ARGS environment variable
It calls jmeter.bat under the hood which in its turn respects HEAP environment variable
So given you're on Windows you can do something like:
set HEAP=-Xms1G -Xmx10G -XX:MaxMetaspaceSize=256M && jmeter-server.bat
and the JVM heap will be increased to 10 gigabytes for the slave instance.
Above instructions are applicable to JMeter 4.0, the behavior might differ on previous versions.
The command to start the Jmeter slaves looks like:
nohup java -jar "/bin/ApacheJMeter.jar" "-Djava.rmi.server.hostname=127.0.0.1" -Dserver_port=10000 -s -j jmeter-server.log > /dev/null 2>&1
So if you want to change Java parameters just pass it after java:
nohup java -Xms512m -Xmx512m -XX:+UseCMSInitiatingOccupancyOnly ...
I am running 6450 users test in a distributed environment in AWS ubuntu machines.
I am getting the following error when test reach to peak load,
ERROR - jmeter.JMeter: Uncaught exception: java.lang.OutOfMemoryError: GC overhead limit exceeded
Machine Details:
m4.4xlarge
HEAP="-Xms512m -Xmx20480m" (jmeter.sh file)
I allocated 20GB for the heap size in JMeter.sh.
But when I run the ps -eaf|grep java command its giving following response.
root 11493 11456 56 15:47 pts/9 00:00:03 java -server -
XX:+HeapDumpOnOutOfMemoryError -Xms512m -Xmx512m -
XX:MaxTenuringThreshold=2 -XX:PermSize=64m -XX:MaxPermSize=128m -
XX:+CMSClassUnloadingEnabled -jar ./ApacheJMeter.jar**
I don't have any idea what changes I have to do now.
Do the change in jmeter file not in jmeter.sh as you can see with ps that it is not being applied.
Also with such a heap you may need to add:
-XX:-UseGCOverheadLimit
And switch to G1 garbage collector algorithm.
And also check you respect these recommendations:
http://jmeter.apache.org/usermanual/best-practices.html
http://www.ubik-ingenierie.com/blog/jmeter_performance_tuning_tips/
First of all, the answer is in your question: you say that ps -eaf|grep java shows this:
XX:+HeapDumpOnOutOfMemoryError -Xms512m -Xmx512m
That is memory is still very low. So either you changed jmeter.sh, but using other shell script to actually start JMeter, or you didn't change it in a valid way, so JMeter uses defaults.
But on top of that, I really doubt you can run 6450 users on one machine, unless your script is very light. Unconfigured machine can usually handle 200-400, and well-configured machine probably can deal with up to 2000.
You need to amend the line in jmeter file, not jmeter.sh file. Locate HEAP="-Xms512m -Xmx512m" line and update the Xmx value accordingly.
Also ensure you're starting JMeter using jmeter file.
If you have environment which explicitly relies on jmeter.sh file you should be amending HEAP size a little bit differently, like:
export JVM_ARGS="-Xms512m -Xmx20480m" && ./jmeter.sh
or add the relevant line to jmeter.sh file.
See JMeter Best Practices and 9 Easy Solutions for a JMeter Load Test “Out of Memory” Failure articles for comprehensive information on tuning JMeter
How can I increase Java heap size for Carrot2 Document Clustering Workbench?
Via command line:
carrot2-workbench -vmargs -Xmx256m
Tip: You can use the above pattern to specify any other JVM options if needed.
carrot2-workbench -vmargs -Xmx256m
Another tip:
You can also add JVM path and options to the eclipse.ini file located in in Carrot2 Document Clustering Workbench installation directory. Please see Eclipse Wiki for a list of all available options.