K8S: Helm Deployment ELK 7.6

K8S: Helm Deployment ELK 7.6 scene Deploy a stateful application ELK on K8S to collect reports of daily test data (eartbeat for application dialing, APM for call chain tracking, metabeat for performance indicators, etc.).This article provides the underlying storage through root to install elk's statefulset, deploy MetalLB to achieve local load ...

Posted on Thu, 02 Apr 2020 09:25:17 -0400 by Zeradin

KubeSphere troubleshooting practice

Pick up another article. KubeSphere practical elimination Recently, some usage problems have been recorded in the use of kubesphere, hoping to be helpful to others Eight kubesphere application upload problems 8.1 file upload 413 The application is deployed into the kubesphere. The function of uploading files is set in the application. When t ...

Posted on Tue, 24 Mar 2020 06:12:27 -0400 by Kalland

Differences between ceph osd reweight and osd crush weight

osd crush weight osd weight crushtool modifies crushmap test When we execute the ceph osd tree command, a WEIGHT and REWEIGHT are displayed in the display. What are they? [root@xt7 ceph]# ceph osd tree //The second column corresponds to osd crush weight, and the last column corresponds to osd weight ID WEIGHT ...

Posted on Mon, 23 Mar 2020 12:44:28 -0400 by draco2317

Ceph hands-on tutorial to get Ceph clusters running

Actual Target To learn how to use Ceph, first you need a Ceph cluster. This paper deploys a Ceph cluster through ceph-deploy, a tool to automate the deployment of Ceph, masters the method of Ceph cluster deployment, the deployment of Ceph core components, and then masters the interactive use of CEPH client commands to create pool s and rbd blo ...

Posted on Mon, 02 Mar 2020 19:18:50 -0500 by monstro

Step by step installation and configuration of Ceph distributed storage cluster

Ceph is the most popular distributed storage system today. This article records the detailed steps of installing and configuring Ceph. Configure work in advance Start with the first cluster node, and then gradually add other nodes. For Ceph, the first node we join should be Monitor, which we set to ...

Posted on Thu, 06 Feb 2020 03:42:24 -0500 by bluetonic

Function encapsulation technique--function pointer+void*variable

Article Directory Preface Step 1: Define a callback function Step 2: Common functions call callback functions Common Function Function Implementation Step 3: Examine one of the group sub-modules Step 4: Reuse id to control the development of team members Preface The first step in the learning of ...

Posted on Sun, 26 Jan 2020 21:00:25 -0500 by faza

Rook quick start Ceph integrated storage

Quick start Official website address: https://rook.io/ Project address: https://github.com/rook/rook Installation cluster Prepare osd storage media Hard disk symbol Size Effect sdb 50GB OSD Data sdc 50GB OSD Data sdd 50GB OSD Data sde 50GB OSD Metadata >Before installation, use the command lvm lvs,lvm vgs and lvm pvs to check w ...

Posted on Wed, 08 Jan 2020 05:09:33 -0500 by ch3m1st

High speed hot standby state of CEPH MDS

The MDS of ceph is the metadata service of cephFS file storage service. When cephfs is created, there will be ceph mds services for management. By default, ceph assigns an mds service to manage cephfs, even if multiple mds services have been created, as follows: [root@ceph-admin my-cluster]# ceph-deploy mds create ceph-node01 ceph-node02 . ...

Posted on Mon, 06 Jan 2020 03:39:07 -0500 by acheoacheo

ceph fixes osd as down

Try 1. Directly reactivate all OSDs 1. View osd tree [root@ceph01 ~]# ceph osd tree ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY -1 0.29279 root default -2 0.14639 host ceph01 0.14639 osd.0 up 1.00000 1.00000 ...

Posted on Wed, 01 Jan 2020 07:58:52 -0500 by bsbotto

DaemonSet of Kubernetes Resource Object

DaemonSet is a new resource object in Kubernetes version 1.2 DaemonSet enables all (or some specific) Node nodes to run only one Pod.When a node joins a kubernetes cluster, the Pod is scheduled to run on that node, when the node is removed from the kubernetes cluster, the Pod scheduled by the DaemonSet is removed, and if the DaemonSet is delet ...

Posted on Sun, 22 Dec 2019 16:08:44 -0500 by dgrinberg