PREPARATION # Node information node1IP: node2IP: node3IP: # TS installer download wget https://downloads.tableau.com/esdalt/2020.2.5/tableau-server-2020-2-5.x86_64.rpm Step1: Install Initial node Step 2: Generate bootstrap file on the initial node tsm topology nodes get-bootstrap-file --file <path\file>.json scp ./bootstrap.json dpark@node2IP:~/ scp ./bootstrap.json dpark@node3IP:~/ Step 3: Firewall Settings Step 3-1: Initial node Firewall settings 1. confirm gateway and tabadmincontroller port number(by default 8850) tsm topology list-ports | grep -E "tabadmincontroller:primary | gateway" 2. Check dynamic port range. typical range is 8000 to 9000. tsm configuration get -k ports.range.min tsm configuration get -k ports.range.max 3. Start firewalld: sudo systemctl start firewalld 4. Verify that the default zone is a high-security zone, such as public. firewall-cmd --get-default-zone if change is needed, sudo firewall-cmd...
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Part 1. Collect data with Windows Performance Monitor Step 1. 1. Open Performance Monitor with Run as Administrator 2. in the left pane, click Data Collector Sets. 3. In the right Pane, right-click User Defined -> NEW -> Data Collector Set . 4. In the Create new Data Collector Set , enter a name. 5. Select Create manually(Advanced) . 7. Under Create data logs, select Performance counter , and click Next. Step 2. 1. set the sample interval to 30 seconds and Add. 2. Select Performance counter from below list. - Logical Disk Current Disk Queue Length Disk Read Bytes/sec Disk Write Bytes/sec - Memory % Committed Bytes in Use Available Mbytes - Process :select counter for below process % Processor Time Private Bytes for below process Total hyperd (Data engine) redis-server (Cache server) run-backgrounder (Backgrounder) run-dataserver (Data server) run-vizqlserver (VizQL Server) - Processor Information %Processor Time % Processor Utili...
Solution to Windows Virtual Machine in VMWARE which has set up with 8 vCPU only showing only 2 core.
[Problem] Windows Virtual Machine in VMWARE which has set up with 8 vCPU only shows 2 core. [Instruction] Power off the virtual machine. In Virtual Hardware, Enter the number of CPUs. (ex. 8) Click the VM Options tab. in the Advanced options section, Click Edit Configuration in Configuration Parameters. Add cpuid.coresPerSocket in the Name column. Enter a value (try 2, 4, or 8) in the Value column. (ex. 4) Note : Ensure that the number of vCPUs is divisible by the number of cpuid.coresPerSocket in the virtual machine. That is, when you divide the number of vCPUs by the number of cpuid.coresPerSocket , it must return an integer value. For example, if your virtual machine is created with 8 vCPUs, coresPerSocket can only be 1, 2, 4, or 8.
[Introduction] How to use TSHARK to capture the network packet for deeper analysis. [Preperation] Install Wireshark package. sudo yum install wireshark -y [Instruction] + List network interface to capture the network packet from sudo tshark -D 1. eth0 2. nflog 3. nfqueue 4. any 5. lo (Loopback) + Run tshark with options to capture. -i : interface. number or interface name -f : filter -w: write file sudo tshark -i 1 -f "host 10.x.x.x" -w output.pcap sudo tshark -i wlan0 -f "src port 53" -w output.pcap + To read PCAP with tshark sudo tshark -r output.pcap
To completely remove Tableau Server from a Linux: 1. Deactivate any active product keys unless you plan to reinstall Tableau Server on this computer. The -l option for the obliterate script removes all licensing files from the computer. It first attempts to deactivate any active licenses, but will remove all licensing information whether or not the deactivation was successful. We recommend you run the tsm licenses deactivate command before running the obliterate script so that the script does not remove licenses that are still active. tsm licenses list tsm licenses deactivate -k <product_key> 2. Run the tableau-server-obliterate script: sudo /opt/tableau/tableau_server/packages/scripts.<version>/tableau-server-obliterate -y -y -y -l 3. Youtube demo. https://youtu.be/MbKXaOVOwMg
[VirtualBox 6][Centos 8] Troubleshoot - unbale to enable second network adaptor on Centos 8 in VirtualBox
[Problem] After installing Centos 8 on VirtualBox 6.x version, I realised that second network adpator never actually up and running which makes only use first network adaptor. [Issue Check] - When First log in to Centos, it is showing only First network adapter regardless of network type(NAT, Host only or Bridge). - Tried to activate second network using NetworkManager but it doesn't even show the Network interface but ip list is showing second network. nmtui [Solution] The solution to this is simply create scripts for second network interface in /etc/sysconfig/network-scripts. 1. cd /etc/sysconfig/network-scripts 2. sudo cp enp0s3 enp0s8 3. sudo vi enp0s8 4. reboot Once it reboots, second network is up and running with ip address assigned as expected. [Troubleshooting Clip]