Apache HBase Reference Guide. HBase provides several tools for administration, analysis, and debugging of your cluster. The entry point to most of these tools is the binhbase command, though some tools are available in the dev support directory. To see usage instructions for binhbase command, run it with no arguments, or with the h argument. These are the usage instructions for HBase 0. Some commands, such as version, pe, ltt, clean, are not available in previous versions. Usage hbase lt options lt command lt args. DIR Configuration direction to use. Default. conf. hosts HOSTS Override the list in regionservers file. Some commands take arguments. Pass no args or h for usage. Run the HBase shell. Run the hbase fsck tool. Oracle Soft Nofile' title='Oracle Soft Nofile' />This article presents how to install Oracle 12C12. Release 2 on Oracle Enterprise Linux 7 OEL7. Read following article how to install Oracle Enterprise Linux 7. E26370_01/doc.121/e26358/img/scripts.png' alt='Oracle Soft Nofile' title='Oracle Soft Nofile' />Write ahead log analyzer. Store file analyzer. Run the Zoo. Keeper shell. Upgrade hbase. master Run an HBase HMaster node. Refrigerator Maintenance Pdf. Run an HBase HRegion. Server node. zookeeper Run a Zoo. Keeper server. rest Run an HBase REST server. Run the HBase Thrift server. Run the HBase Thrift. Run the HBase clean up script. Dump hbase CLASSPATH. Dump CLASSPATH entries required by mapreduce. Run Performance. Evaluation. Run Load. Test. Tool. Print the version. Background Overview. The following documentation provides instructions for building an Oracle 12c database with ASM residing on RedHat. A collection of UnixLinuxBSD commands and tasks which are useful for IT work or for advanced users. CLASSNAME Run the class named CLASSNAMESome of the tools and utilities below are Java classes which are passed directly to the binhbase command, as referred to in the last line of the usage instructions. Others, such as hbase shell The Apache HBase Shell, hbase upgrade Upgrading, and hbase thrift Thrift API and Filter Language, are documented elsewhere in this guide. This document is intended for use in conjunction with the various Oracle Fusion Middleware product installation guides and the Oracle Fusion Middleware 12c Release 1. Canary. There is a Canary class can help users to canary test the HBase cluster status, with every column family for every regions or Region. Servers granularity. To see the usage, use the help parameter. HBASEHOMEbinhbase canary help. Usage binhbase org. Canary opts table. Show this help and exit. Continuous check at defined intervals. N Interval between checks sec. Use regionregionserver as regular expression. B stop whole program if first error occurs, default is true. N timeout for a check, default is 6. Sniffing enable the write sniffing in canary. Failure. As. Error treats read write failure as error. Table The table used for write sniffing. Default is hbase canary. Dlt config. Property lt value assigning or override the configuration params. This tool will return non zero error codes to user for collaborating with other monitoring tools, such as Nagios. The error code definitions are privatestaticfinalint USAGEEXITCODE 1. INITERROREXITCODE 2. TIMEOUTERROREXITCODE 3. ERROREXITCODE 4 Here are some examples based on the following given case. There are two Table objects called test 0. Region. Servers. see following table. Region. Servertest 0. Following are some examples based on the previous given case. Canary test for every column family store of every region of every table HBASEHOMEbinhbase canary. INFO tool. Canary read from region test 0. INFO tool. Canary read from region test 0. INFO tool. Canary read from region test 0. INFO tool. Canary read from region test 0. INFO tool. Canary read from region test 0. INFO tool. Canary read from region test 0. INFO tool. Canary read from region test 0. INFO tool. Canary read from region test 0. So you can see, table test 0. Canary tool will pick 4 small piece of data from 4 2 region 2 store different stores. This is a default behavior of the this tool does. Canary test for every column family store of every region of specific tablesYou can also test one or more specific tables. HBASEHOMEbinhbase canary test 0. Canary test with Region. Server granularity. This will pick one small piece of data from each Region. Server, and can also put your Region. Server name as input options for canary test specific Region. Server. HBASEHOMEbinhbase canary regionserver. INFO tool. Canary Read from table test 0. INFO tool. Canary Read from table test 0. INFO tool. Canary Read from table test 0. Canary test with regular expression pattern. This will test both table test 0. HBASEHOMEbinhbase canary e test 01 21. Pgp Software For Windows 7'>Pgp Software For Windows 7. Run canary test as daemon mode. Run repeatedly with interval defined in option interval whose default value is 6 seconds. This daemon will stop itself and return non zero error code if any error occurs, due to the default value of option f is true. HBASEHOMEbinhbase canary daemon. Run repeatedly with internal 5 seconds and will not stop itself even if errors occur in the test. HBASEHOMEbinhbase canary daemon interval 5. Force timeout if canary test stuck. In some cases the request is stuck and no response is sent back to the client. This can happen with dead Region. Servers which the master has not yet noticed. Because of this we provide a timeout option to kill the canary test and return a non zero error code. This run sets the timeout value to 6. HBASEHOMEbinhbase canary t 6. Enable write sniffing in canary. By default, the canary tool only check the read operations, its hard to find the problem in the. To enable the write sniffing, you can run canary with the write. Sniffing option. When the write sniffing is enabled, the canary tool will create an hbase table and make sure the. In each sniffing period, the canary will. HBASEHOMEbinhbase canary write. Sniffing. The default write table is hbase canary and can be specified by the option write. Table. HBASEHOMEbinhbase canary write. Sniffing write. Table ns canary. The default value size of each put is 1. Treat read write failure as error. By default, the canary tool only logs read failure, due to e. Retries. Exhausted. Exception. while returning normal exit code. To treat read write failure as error, you can run canary. Failure. As. Error option. When enabled, read write failure would result in error. HBASEHOMEbinhbase canary treat. Failure. As. Error. Running Canary in a Kerberos enabled Cluster. To run Canary in a Kerberos enabled cluster, configure the following two properties in hbase site. Kerberos credentials are refreshed every 3. Canary runs in daemon mode. To configure the DNS interface for the client, configure the following optional properties in hbase site. Example 5. 6. Canary in a Kerberos Enabled Cluster. This example shows each of the properties with valid values. HOSTYOUR REALM. COMlt value lt property lt property lt name hbase. Health Checker. You can configure HBase to run a script periodically and if it fails N times configurable, have the server exit. See HBASE 7. 35. Periodic health check script for configurations and detail. Driver. Several frequently accessed utilities are provided as Driver classes, and executed by the binhbase command. These utilities represent Map. Reduce jobs which run on your cluster. They are run in the following way, replacing Utility. Name with the utility you want to run. This command assumes you have set the environment variable HBASEHOME to the directory where HBase is unpacked on your server. HBASEHOMEbinhbase org. Utility. Name. The following utilities are available Load. Incremental. HFiles. Complete a bulk data load. Copy. Table. Export a table from the local cluster to a peer cluster. Export. Write table data to HDFS. Import. Import data written by a previous Export operation. Import. Tsv. Import data in TSV format. Oracle Database Preinstallation Requirements. This chapter describes the tasks that you must complete before you start Oracle Universal Installer. It includes information about the following tasks Note. This guide contains information required to install Oracle Database 1. Release 1 1. 1. 1 on various platforms of Linux. Ensure that you review information related to the platform on which you intend to install Oracle Database 1. Logging In to the System as root. Before you install the Oracle software, you must complete several tasks as the root user. To log in as the root user, complete one of the following procedures Note. Unless you intend to complete a silent mode installation, you must install the software from an X Window System workstation, an X terminal, or a PC or other system with X server software installed. For more information about silent mode installations, refer to Appendix A. Following are the steps for installing the software from an X Window System workstation or X terminal Start a local terminal session, for example, an X terminal xterm. If you are not installing the software on the local system, then enter the following command to enable the remote host to display X applications on the local X server. For example. xhost somehost. If you are not installing the software on the local system, then use the ssh, rlogin, or telnet command to connect to the system where you want to install the software. If you are not logged in as the root user, then enter the following command to switch user to root. Following are the steps for installing the software from a PC or other system with X server software Note. If necessary, refer to the X server documentation for more information about completing this procedure. Depending on the X server software that you are using, you may need to complete the tasks in a different order. Start the X server software. Configure the security settings of the X server software to permit remote hosts to display X applications on the local system. Connect to the remote system where you want to install the software and start a terminal session on that system, for example, an X terminal xterm. If you are not logged in as the root user on the remote system, then enter the following command to switch user to root. Checking the Hardware Requirements. The system must meet the following minimum hardware requirements 2. Memory Requirements. The following are the memory requirements for installing Oracle Database 1. Release 1 At least 1 GB of RAMTo determine the RAM size, enter the following command. Mem. Total procmeminfo. If the size of the RAM is less than the required size, then you must install more memory before continuing. The following table describes the relationship between installed RAM and the configured swap space requirement Note. On Linux, the Hugepages feature allocates non swappable memory for large page tables using memory mapped files. If you enable Hugepages, then you should deduct the memory allocated to Hugepages from the available RAM before calculating swap space. RAMSwap Space. Between 1 GB and 2 GB1. RAMBetween 2 GB and 1. GBEqual to the size of RAMMore than 1. GB1. 6 GBTo determine the size of the configured swap space, enter the following command. Swap. Total procmeminfo. If necessary, refer to the operating system documentation for information about how to configure additional swap space. To determine the available RAM and swap space, enter the following command. Oracle recommends that you take multiple values for the available RAM and swap space before finalizing a value. This is because the available RAM and swap space keep changing depending on the user interactions with the computer. Automatic Memory Management. Starting with Oracle Database 1. Automatic Memory Management feature requires more shared memory devshmand file descriptors. The size of the shared memory should be at least the greater of MEMORYMAXTARGET and MEMORYTARGET for each Oracle instance on the computer. If MEMORYMAXTARGET or MEMORYTARGET is set to a non zero value, and an incorrect size is assigned to the shared memory, it will result in an ORA 0. The number of file descriptors for each Oracle instance should be at least 5. PROCESSES. Also, the limit of descriptors for each process should be at least 5. If file descriptors are not sized correctly, you will notice ORA 2. Oracle processes and potentially Linux Error EMFILE Too many open files errors in non Oracle processes. To determine the amount of shared memory available, enter the following command. Note MEMORYMAXTARGET and MEMORYTARGET cannot be used when LOCKSGA is enabled or with huge pages on Linux. On the Initialization Parameters page, note that Memory Size SGA and PGA, which sets the initialization parameter MEMORYTARGET or MEMORYMAXTARGET. Note that the initialization parameters cannot be greater than the shared memory file system on the operating system. For example, if the shared memory file system allocation on your system is 1 GB, but you set Memory Size MEMORYTARGET to 2 GB, then the following error messages are displayed during database startup. ORA 0. 08. 45 MEMORYTARGET not supported on this system. ORA 0. 10. 78 Failure in processing system parameters. In addition, if you click All Initialization Parameters and the global database name is longer than 8 characters, then the database name value in the DBNAME parameter is truncated to the first eight characters, and the DBUNIQUENAME parameter value is set to the global name. System Architecture. To determine whether the system architecture can run the software, enter the following command. This command displays the processor type. Verify that the processor architecture matches the Oracle software release that you want to install. If you do not see the expected output, then you cannot install the software on this system. Disk Space Requirements. The following are the disk space requirements for installing Oracle Database 1. Release 1 Between 1. MB of disk space in the tmp directory. To determine the amount of disk space available in the tmp directory, enter the following command. If there is less than 4. MB of free disk space available in the tmp directory, then complete one of the following steps Delete unnecessary files from the tmp directory to meet the disk space requirement. Set the TMP and TMPDIR environment variables when setting the oracle users environment described later. Extend the file system that contains the tmp directory. If necessary, contact the system administrator for information about extending file systems. To determine the amount of free disk space on the system, enter the following command. The following table describes the disk space requirements for software files for each installation type on Linux 8. Installation Type. Requirement for Software Files GBEnterprise Edition. Standard Edition. Custom maximum3. Between 3. GB and 5 GB of disk space for the Oracle software, depending on the installation type. The following table describes the disk space requirements for each installation type on Linux x. Installation Type. Requirement for Software Files GBEnterprise Edition. Standard Edition. Custom maximum4. Between 3. GB and 5 GB of disk space for the Oracle software, depending on the installation type. Tmnt Mutant Melee Pc Game'>Tmnt Mutant Melee Pc Game. The following table describes the disk space requirements for each installation type on Linux x. Installation Type. Disk Space for Data Files GBEnterprise Edition. Standard Edition.