Cloudera Community
Announcements
Celebrating as our community reaches 100,000 members! Thank you!
vkrish
user rank
Contributor

Re: Is it possible to get CDH somehow to play at h...

by Contributor in Support Questions
‎03-20-2021 11:21 PM
‎03-20-2021 11:21 PM
@KTochylin    Hello clouderan !!          Sure You can play,explore, please try with the "trial version" of CDP. with the existing credentials         1. Simply go to Downloads and login with your credentials          2. choose CDP free trial          3.  it will land you to explore get CDP  binary file                  https://www.cloudera.com/downloads/cdp-private-cloud-trial.html.html         4. As i built the five node cluster with aws-cloud flawlessly.         5. Try it on cloud with aws free tier         6.  Hope this helps and Keep Learning  Thanks     Enclosure:    1.  for reference        ... View more

Re: wget cloudera manager repo error

by Contributor in Support Questions
‎03-13-2021 12:08 AM
‎03-13-2021 12:08 AM
@novice_tester  Hello novice_tester   I successfully installed cloudera-manager7 (cm7) with cloudera-manager-installer.bin.    Just give a try with cdp-trail  and following as per the suggested steps in the web-page.  Clustere was installed on amazon web services cloud environment.  I flaw lessly installed and thanks to cloudera team for the cloudera-run-time. Thanks for your time. @vkrish    ... View more

Re: binary file:cloudera-manager6

by Contributor in Support Questions
‎03-11-2021 10:59 PM
‎03-11-2021 10:59 PM
@ask_bill_brooks    Hello bill_brooks           Well. Why don't cloudera accommodate the quick-start vm's ???? bring back that will suffice the issue of binary file for exploration,learning,experimenting so on..    Thanks  @vkrish   ... View more

Re: wget cloudera manager repo error

by Contributor in Support Questions
‎03-11-2021 08:27 PM
‎03-11-2021 08:27 PM
@GangWar @novice_tester @Thuecanho123 @cjervis @ask_bill_brooks     Hello Clouderans!            I apologize to jott down.          1. Ask your self Can a student have valid subscription to make use of cloudera-manager ???         2. Cloudera intensions to keep away the students ??         3. It doesn't make any sense to make it mandatory to authorize for downloading your products.         5. Will aspirants and professionals have access to subscription ??? ask your self. No company will entertain to explore,experiment with their prod,test environments. If they do so they will have companies limitations.        6. Simply loosy policy. Cloudera can't compell every opportunityto cashcow.         7. Rethink on your policy.        Thanks  ... View more

Re: binary file:cloudera-manager6

by Contributor in Support Questions
‎03-11-2021 08:43 AM
‎03-11-2021 08:43 AM
@ask_bill_brooks       Hello bill_brooks          I apologize to say this.  It doesn't work for me. Loosy Policy       Cloudera should make it available at least of 6.1.1   Thanks  ... View more

binary file:cloudera-manager6

by Contributor in Support Questions
‎03-11-2021 06:57 AM
‎03-11-2021 06:57 AM
loosy approach!Hello  Clouderans!!   Need your attention immediately          How would i get the binary file of the cloudera manager 6 for the proof of concept, as it was restricted to my credentials.        Cloudera should consider to make it available for the poc, practicing for certification so on...    please fix it ..   Thanks in advance     ... View more
Labels:

Unsupported major.minor version 52.0-KAFKA-4.0.0-1...

by Contributor in Support Questions
‎04-28-2019 03:13 AM
1 Kudo
‎04-28-2019 03:13 AM
1 Kudo
Hello Champions      I am experiencing "HeapDumpOnOutOfMemoryError"  issue, kafka fails to start. I tired with increasing broker memory size from 1 GIB to 8 GIB gradually, but didn't worked out. I checked with the cloudera documentation of it says incompatible java-version cloud lead to this error, It is working with different version of kafka. Kafka ends with supervisor FATAL Error. Please help me in fix this.        1. CDH-5.16.1    2. KAFKA-4.0.0-1.4.0.0.p0.1     3. oracle-j2sdk1.7-1.7.0+update67-1    4. referred documentation url   https://www.cloudera.com/documentation/kafka/latest/topics/kafka_requirements.html   Enclosures Output of Log files     STDERR   + KAFKA_JVM_PERFORMANCE_OPTS='-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp/kafka_kafka-KAFKA_BROKER-68060b45508aa72beab22be5c6595321_pid16923.hprof -XX:OnOutOfMemoryError=/usr/lib64/cmf/service/common/killparent.sh -server -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+CMSScavengeBeforeRemark -XX:+DisableExplicitGC -Djava.awt.headless=true' + [[ false == \t\r\u\e ]] + exec /opt/cloudera/parcels/KAFKA-4.0.0-1.4.0.0.p0.1/lib/kafka/bin/kafka-server-start.sh /run/cloudera-scm-agent/process/163-kafka-KAFKA_BROKER/kafka.properties Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/kafka/common/utils/KafkaThread : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at kafka.utils.Log4jControllerRegistration$.<init>(Logging.scala:30) at kafka.utils.Log4jControllerRegistration$.<clinit>(Logging.scala) at kafka.utils.Logging$class.$init$(Logging.scala:47) at com.cloudera.kafka.wrap.Kafka$.<init>(Kafka.scala:29) at com.cloudera.kafka.wrap.Kafka$.<clinit>(Kafka.scala) at com.cloudera.kafka.wrap.Kafka.main(Kafka.scala)   STDOUT   Kafka version found: 2.1.0-kafka4.0.0 Sentry version found: 1.5.1-cdh5.10.2 ZK_PRINCIPAL_NAME: zookeeper Final Zookeeper Quorum is cdh-3.us-east4-b.c.static-protocol-238105.internal:2181 security.inter.broker.protocol inferred as PLAINTEXT LISTENERS=listeners=PLAINTEXT://cdh-3.us-east4-b.c.static-protocol-238105.internal:9092, Sat Apr 27 15:59:21 UTC 2019 JAVA_HOME=/usr/java/jdk1.7.0_67-cloudera Using -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp/kafka_kafka-KAFKA_BROKER-68060b45508aa72beab22be5c6595321_pid16923.hprof -XX:OnOutOfMemoryError=/usr/lib64/cmf/service/common/killparent.sh as CSD_JAVA_OPTS Using /run/cloudera-scm-agent/process/163-kafka-KAFKA_BROKER as conf dir Using scripts/control.sh as process script CONF_DIR=/run/cloudera-scm-agent/process/163-kafka-KAFKA_BROKER CMF_CONF_DIR=/etc/cloudera-scm-agent Date: Sat Apr 27 15:59:22 UTC 2019 Host: cdh-3.us-east4-b.c.static-protocol-238105.internal Pwd: /run/cloudera-scm-agent/process/163-kafka-KAFKA_BROKER CONF_DIR: /run/cloudera-scm-agent/process/163-kafka-KAFKA_BROKER KAFKA_HOME: /opt/cloudera/parcels/KAFKA-4.0.0-1.4.0.0.p0.1/lib/kafka Zookeeper Quorum: cdh-3.us-east4-b.c.static-protocol-238105.internal:2181 Zookeeper Chroot: PORT: 9092 JMX_PORT: 9393 SSL_PORT: 9093 ENABLE_MONITORING: true METRIC_REPORTERS: nl.techop.kafka.KafkaHttpMetricsReporter BROKER_HEAP_SIZE: 4096 BROKER_JAVA_OPTS: -server -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+CMSScavengeBeforeRemark -XX:+DisableExplicitGC -Djava.awt.headless=true BROKER_SSL_ENABLED: false KERBEROS_AUTH_ENABLED: false KAFKA_PRINCIPAL: SECURITY_INTER_BROKER_PROTOCOL: INFERRED AUTHENTICATE_ZOOKEEPER_CONNECTION: true SUPER_USERS: kafka Kafka version found: 2.1.0-kafka4.0.0 Sentry version found: 1.5.1-cdh5.10.2 ZK_PRINCIPAL_NAME: zookeeper Final Zookeeper Quorum is cdh-3.us-east4-b.c.static-protocol-238105.internal:2181 security.inter.broker.protocol inferred as PLAINTEXT LISTENERS=listeners=PLAINTEXT://cdh-3.us-east4-b.c.static-protocol-238105.internal:9092     ... View more
Labels:

CCA-131 Certification Preparation

by Contributor in Support Questions
‎09-03-2018 03:46 AM
‎09-03-2018 03:46 AM
Hello Clouderans            I am planning to take the "CCA-131" Certification, I came to know some dreading experiences from the attendees, who took the exam, It was bothering me to drop the plan of Certification. I checked with the internet on this, most of them are cautioning towards cloudera certifications, one can not take for granted especially cloudera.  I have few questions to clarify on the preparedness for the certifiaction.  I love to hear best inputs  from the community.   1. what level of preparation is required ?? 2. How could Cloudera documentation,community,blog so on.., are relaible for preparation ?? 3. One can not take the exam with out, Production experience, trainning ?? 4. What level of deep dive hadoop knowledge is required for preparation ? 5. Is there any books, e-books are available for the preparation ??   @vkrish Please ignore fat fingers  Thanks in advance     ... View more
Labels:
Contact Me
Online
Offline
Last Visited
‎04-22-2021 12:45 AM
Community Statistics
Member Since ‎08-20-2018 06:26 AM
Last Visited ‎04-22-2021 12:45 AM
Posts 13
Kudos received 1