Hello Everybody. I am trying to install five node Hadoop cluster. Following is the environmental setup. After the installation, the "datanode" service is failing to start. I can see the following log message in stderr log. <verbosegc xmlns="http://www.ibm.com/j9/verbosegc" version="R27_Java727_SR3_20151022_1530_B273253_CMPRSS">JVMJ9VM007E Command-line option unrecognised: -Xloggc:/var/log/hadoop/hdfs/gc.log-201608121113</verbosegc>Error: Could not create the Java Virtual Machine.Error: A fatal exception has occurred. Program will exit. Curious whether "java" is causing the issue. I am attaching the detailed log messages. Can you please share your thoughts on this? Thanks. Environment: Virtual machine running on ESXi-6.0 U1 Number of the Node: 5 OS: SLES11SP4 (16 Core, 64GB RAM) Apache Amabri - 184.108.40.206 HDP - hdp-select-220.127.116.11-258 Java - java version "1.7.0" Java(TM) SE Runtime Environment (build pxa6470_27sr3fp20-20151106_01(SR3 FP20))IBM J9 VM (build 2.7, JRE 1.7.0 Linux amd64-64 Compressed References 20151022_273253 (JIT enabled, AOT enabled)J9VM - R27_Java727_SR3_20151022_1530_B273253JIT - tr.r13.java.sr3.fp20_20151005_102390.01GC - R27_Java727_SR3_20151022_1530_B273253_CMPRSSJ9CL - 20151022_273253)JCL - 20151105_01 based on Oracle jdk7u91-b15
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Hi I am newbie to Hadoop and Big data. I am curious to know if I run
"Rebalance HDFS" from Ambari UI, in production cluster, is there any
negative impact of that on running jobs? Do I need to take care of
anything before doing that? Thanks.
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