🚧 Wormhole

judasn · judasn · commit 4f32322777c1 · 2018-12-28T17:30:40.000+08:00
diff --git a/README.md b/README.md
@@ -101,6 +101,7 @@
 - [Portainer 安装和配置](markdown-file/Portainer-Install-And-Settings.md)
 - [Grafana 安装和配置](markdown-file/Grafana-Install-And-Settings.md)
 - [Ansible 安装和配置](markdown-file/Ansible-Install-And-Settings.md)
+- [Wormhole + Flink 最佳实践](markdown-file/Wormhole-Install-And-Settings.md)
 
 ## 联系(Contact)
 
diff --git a/markdown-file/Flink-Install-And-Settings.md b/markdown-file/Flink-Install-And-Settings.md
@@ -31,7 +31,7 @@
 - 控制台启动：`cd /usr/local/flink && ./bin/yarn-session.sh -n 2 -jm 1024 -tm 1024`
 - 守护进程启动：`cd /usr/local/flink && ./bin/yarn-session.sh -n 2 -jm 1024 -tm 1024 -d`
 - 有可能会报：`The Flink Yarn cluster has failed`，可能是资源不够
-
+- YARN 参数配置可以参考：[点击我](https://sustcoder.github.io/2018/09/27/YARN%20%E5%86%85%E5%AD%98%E5%8F%82%E6%95%B0%E8%AF%A6%E8%A7%A3/)
 
 ## Demo
 
diff --git a/markdown-file/Hadoop-Install-And-Settings.md b/markdown-file/Hadoop-Install-And-Settings.md
@@ -118,12 +118,12 @@ vim $HADOOP_HOME/etc/hadoop/hadoop-env.sh
 把 25 行的
 export JAVA_HOME=${JAVA_HOME}
 都改为
-export JAVA_HOME=/usr/local/jdk1.8.0_181
+export JAVA_HOME=/usr/local/jdk1.8.0_191
 
 
 vim $HADOOP_HOME/etc/hadoop/yarn-env.sh
 
-加一行 export JAVA_HOME=/usr/local/jdk1.8.0_181
+文件开头加一行 export JAVA_HOME=/usr/local/jdk1.8.0_191
 
 ```
 
@@ -211,12 +211,34 @@ vim $HADOOP_HOME/etc/hadoop/hdfs-site.xml
     <name>mapreduce.framework.name</name>
     <value>yarn</value>
   </property>
+    
+  <property>
+    <name>mapreduce.map.memory.mb</name>
+    <value>4096</value>
+  </property>
+  
+  <property>
+    <name>mapreduce.reduce.memory.mb</name>
+    <value>8192</value>
+  </property>
+  
+  <property>
+    <name>mapreduce.map.java.opts</name>
+    <value>-Xmx3072m</value>
+  </property>
+  
+  <property>
+    <name>mapreduce.reduce.java.opts</name>
+    <value>-Xmx6144m</value>
+  </property>  
+  
 </configuration>
 ```
 
 
 - yarn.resourcemanager.hostname == 指定YARN的老大（ResourceManager）的地址
 - yarn.nodemanager.aux-services == NodeManager上运行的附属服务。需配置成mapreduce_shuffle，才可运行MapReduce程序默认值：""
+- 32G 内存的情况下配置：
 
 ```
 vim $HADOOP_HOME/etc/hadoop/yarn-site.xml 
@@ -233,6 +255,21 @@ vim $HADOOP_HOME/etc/hadoop/yarn-site.xml
     <value>mapreduce_shuffle</value>
   </property>
 
+  <property>
+    <name>yarn.nodemanager.vmem-pmem-ratio</name>
+    <value>2.1</value>
+  </property>
+  
+  <property>
+    <name>yarn.nodemanager.resource.memory-mb</name>
+    <value>20480</value>
+  </property>
+  
+  <property>
+    <name>yarn.scheduler.minimum-allocation-mb</name>
+    <value>2048</value>
+  </property>
+
 </configuration>
 ```
 
@@ -278,7 +315,7 @@ STARTUP_MSG:   args = [-format]
 STARTUP_MSG:   version = 2.6.5
 STARTUP_MSG:   classpath = /usr/local/hadoop-2.6.5/etc/hadoop:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-io-2.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/junit-4.11.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/curator-recipes-2.6.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jets3t-0.9.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-lang-2.6.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/gson-2.2.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-collections-3.2.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/hadoop-auth-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/hamcrest-core-1.3.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/stax-api-1.0-2.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/curator-framework-2.6.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-logging-1.1.3.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/htrace-core-3.0.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-math3-3.1.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/zookeeper-3.4.6.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/httpclient-4.2.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/httpcore-4.2.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/curator-client-2.6.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/hadoop-annotations-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/hadoop-common-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/hadoop-common-2.6.5-tests.jar:/usr/local/hadoop-2.6.5/share/hadoop/common/hadoop-nfs-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-io-2.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/htrace-core-3.0.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/hadoop-hdfs-2.6.5-tests.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/hadoop-hdfs-nfs-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/hdfs/hadoop-hdfs-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-io-2.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/activation-1.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-lang-2.6.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/guava-11.0.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jettison-1.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jetty-6.1.26.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-httpclient-3.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jsr305-1.3.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-client-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-cli-1.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-json-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/servlet-api-2.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jline-0.9.94.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/commons-codec-1.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-api-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-common-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-registry-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-client-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-common-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-tests-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/junit-4.11.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/lib/hadoop-annotations-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.5.jar:/usr/local/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.5-tests.jar:/usr/local/hadoop-2.6.5/contrib/capacity-scheduler/*.jar
 STARTUP_MSG:   build = https://github.com/apache/hadoop.git -r e8c9fe0b4c252caf2ebf1464220599650f119997; compiled by 'sjlee' on 2016-10-02T23:43Z
-STARTUP_MSG:   java = 1.8.0_181
+STARTUP_MSG:   java = 1.8.0_191
 ************************************************************/
 18/12/17 17:47:17 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
 18/12/17 17:47:17 INFO namenode.NameNode: createNameNode [-format]
diff --git a/markdown-file/Wormhole-Install-And-Settings.md b/markdown-file/Wormhole-Install-And-Settings.md
