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project:rpihadoop [2017/10/31 11:04] licho [Krok 7: Oozie] |
project:rpihadoop [2017/12/21 08:58] licho [Zpracovani Dat] |
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| - Data Analysis | - Data Analysis | ||
| {{project:hadoop-data-analysis-arch.png}} | {{project:hadoop-data-analysis-arch.png}} | ||
| + | |||
| + | {{project:kafka-spark.jpg}} | ||
| ==== HDFS ==== | ==== HDFS ==== | ||
| {{project:hadoop-hdfs-arch.png?550}} | {{project:hadoop-hdfs-arch.png?550}} | ||
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| mkdir -p /opt/hadoop_tmp/hdfs/datanode | mkdir -p /opt/hadoop_tmp/hdfs/datanode | ||
| chown -R hduser:hadoop /opt/hadoop_tmp | chown -R hduser:hadoop /opt/hadoop_tmp | ||
| - | chmod -R 750 /opt/hadoop_tmp | + | chmod -R 750 /opt/hadoop_tmp</code> |
| - | /opt/hadoop-2.7.4/bin/hdfs namenode -format</code> | + | - **Spusteni ''hdfs'' z master nodu:**<code>/opt/hadoop-2.7.4/bin/hdfs namenode -format |
| - | - **Spusteni ''hdfs'':**<code> | + | |
| /opt/hadoop-2.7.4/sbin/start-dfs.sh | /opt/hadoop-2.7.4/sbin/start-dfs.sh | ||
| curl http://hadoop-rpi1.labka.cz:50070/ | curl http://hadoop-rpi1.labka.cz:50070/ | ||
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| ==== Krok 6: Flume ===== | ==== Krok 6: Flume ===== | ||
| == Prerequisite: == | == Prerequisite: == | ||
| - | * **JDK 1.6 or later versions of Java** installed on our Ubuntu machine. | + | * **JDK 1.6 or later versions of Java** installed on our machine. |
| * **Memory** – Sufficient memory for configurations used by sources, channels or sinks. | * **Memory** – Sufficient memory for configurations used by sources, channels or sinks. | ||
| * **Disk Space** – Sufficient disk space for configurations used by channels or sinks. | * **Disk Space** – Sufficient disk space for configurations used by channels or sinks. | ||
| * **Directory Permissions** – Read/Write permissions for directories used by agent. | * **Directory Permissions** – Read/Write permissions for directories used by agent. | ||
| - | == Apache Flume Installation == | + | === Flume Installation === |
| - **Download** latest stable release of apache flume binary distribution from apache download mirrors at [[http://flume.apache.org/download.html|Flume Download]]. At the time of writing this post, apache-flume-1.5.0 is the latest version and the same (''apache-flume-1.5.0.1-bin.tar.gz'') is used for installation in this post. | - **Download** latest stable release of apache flume binary distribution from apache download mirrors at [[http://flume.apache.org/download.html|Flume Download]]. At the time of writing this post, apache-flume-1.5.0 is the latest version and the same (''apache-flume-1.5.0.1-bin.tar.gz'') is used for installation in this post. | ||
| - **Copy** the ''apache-flume-1.5.0.1-bin.tar.gz''from downloads folder to our preferred flume installation directory, usually into ''/usr/lib/flume'' and **unpack** the tarball. Below are the set of commands to perform these activities. Flume installation Shell <code> $ sudo mkdir /usr/lib/flume $ sudo chmod -R 777 /usr/lib/flume | - **Copy** the ''apache-flume-1.5.0.1-bin.tar.gz''from downloads folder to our preferred flume installation directory, usually into ''/usr/lib/flume'' and **unpack** the tarball. Below are the set of commands to perform these activities. Flume installation Shell <code> $ sudo mkdir /usr/lib/flume $ sudo chmod -R 777 /usr/lib/flume | ||
| Line 694: | Line 694: | ||
| - **Edit:** In ''FLUME_CONF_DIR'' directory, rename flume-env.sh.template file to ''flume-env.sh'' and provide value for ''JAVA_HOME'' environment variable with Java installation directory. | - **Edit:** In ''FLUME_CONF_DIR'' directory, rename flume-env.sh.template file to ''flume-env.sh'' and provide value for ''JAVA_HOME'' environment variable with Java installation directory. | ||
| - If we are going to use **memory channels** while setting flume agents, it is preferable to increase the memory limits in ''JAVA_OPTS'' variable. By default, the minimum and maximum memory values are 100 MB and 200 MB respectively (Xms100m -Xmx200m). Better to increase these limits to **500 MB** and **1000 MB** respectively. Shell: <code>JAVA_HOME="cesta" | - If we are going to use **memory channels** while setting flume agents, it is preferable to increase the memory limits in ''JAVA_OPTS'' variable. By default, the minimum and maximum memory values are 100 MB and 200 MB respectively (Xms100m -Xmx200m). Better to increase these limits to **500 MB** and **1000 MB** respectively. Shell: <code>JAVA_HOME="cesta" | ||
| - | JAVAOPTS="-Xms200m -Xmx800m -Dcom.sun/management.jmxremote"</code> | + | JAVAOPTS="-Xms500m -Xmx1000m -Dcom.sun/management.jmxremote"</code> |
| - **Work done:** With these settings, we can consider flume installation as completed. | - **Work done:** With these settings, we can consider flume installation as completed. | ||
| - **Verification:** We can verify the flume installation with<code>$ flume-ng –help</code> command on terminal. If we get output similar to below then flume installation is successful. | - **Verification:** We can verify the flume installation with<code>$ flume-ng –help</code> command on terminal. If we get output similar to below then flume installation is successful. | ||
| - | |||
| ==== Krok 7: Oozie ===== | ==== Krok 7: Oozie ===== | ||
| == Prerequisite: == | == Prerequisite: == | ||
| * **Hadoop 2** is installed on our machine. | * **Hadoop 2** is installed on our machine. | ||
| - | == Installation: == | + | === Oozie Installation === |
| My Hadoop Location : /opt/hadoop-2.7.4 | My Hadoop Location : /opt/hadoop-2.7.4 | ||
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| - **Build Oozie** <code>$ cd oozie-3.3.2/bin | - **Build Oozie** <code>$ cd oozie-3.3.2/bin | ||
| $ ./mkdistro.sh -DskipTests</code> | $ ./mkdistro.sh -DskipTests</code> | ||
| - | == Oozie Server Setup == | + | === Oozie Server Setup === |
| - Copy the built binaries to the home directory as ‘oozie’<code>$ cd ../../ | - Copy the built binaries to the home directory as ‘oozie’<code>$ cd ../../ | ||
| $ cp -R oozie-3.3.2/distro/target/oozie-3.3.2-distro/oozie-3.3.2/ oozie</code> | $ cp -R oozie-3.3.2/distro/target/oozie-3.3.2-distro/oozie-3.3.2/ oozie</code> | ||
| Line 814: | Line 813: | ||
| - Use the following command to check the status of Oozie from command line:<code>$ ./bin/oozie admin -oozie http://localhost:11000/oozie -status | - Use the following command to check the status of Oozie from command line:<code>$ ./bin/oozie admin -oozie http://localhost:11000/oozie -status | ||
| System mode: NORMAL</code> | System mode: NORMAL</code> | ||
| - | - URL for the Oozie Web Console is [[http://localhost:11000/oozie|http://localhost:11000/Oozie Web Console]] | + | - URL for the Oozie Web Console is [[http://localhost:11000/oozie|Oozie Web Console]]{{http://www.rohitmenon.com/wp-content/uploads/2013/12/OozieWebConsole.png|Oozie Web Console}} |
| - | + | === Oozie Client Setup === | |
| - | {{http://www.rohitmenon.com/wp-content/uploads/2013/12/OozieWebConsole.png|Oozie Web Console}} | + | |
| - | == Oozie Client Setup == | + | |
| - **Instalation: **<code>$ cd .. | - **Instalation: **<code>$ cd .. | ||
| $ cp oozie/oozie-client-3.3.2.tar.gz . | $ cp oozie/oozie-client-3.3.2.tar.gz . | ||
| Line 823: | Line 820: | ||
| $ mv oozie-client-3.3.2 oozie-client | $ mv oozie-client-3.3.2 oozie-client | ||
| $ cd bin</code> | $ cd bin</code> | ||
| - | - Add the **/home/hduser/oozie-client/bin** to **PATH**in .bashrc and restart your terminal. | + | - Add the **/home/hduser/oozie-client/bin** to ''PATH'' in .bashrc and restart your terminal. |
| - Your Oozie Server and Client setup on a single node cluster is now ready. In the next post, we will configure and schedule some Oozie workflows. | - Your Oozie Server and Client setup on a single node cluster is now ready. In the next post, we will configure and schedule some Oozie workflows. | ||