Questions tagged [centos-7]

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ERROR 1932 (42S02): Table '…' doesn't exist in engine after upgrade mariadb

I need use JSON_OBJECT builtin mariadb function, but mariadb version in server 10.0.xx, then we upgrade to 10.4.20-MariaDB. Then now mariadb version is 10.4.20-MariaDB But some table can't be accessed ...
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1answer
2k views

Change in bind_ip value is not reflecting

I have mongo installed on Centos instance in AWS and I am connecting to the mongoDB server from my system. To connect from remote system we need to change bind_ip value to 0.0.0.0 in /etc/mongod.conf ...
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2answers
251 views

Mysqld process not showing all options on command line in CentOs 7

Mysqld process showed all config file options on command line in CentOs 5 and CentOs 6. But it's not showing the same in CentOs 7. I am using mysql 5.7.21 on CentOs 7 example stated below and 5.7.19 ...
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2answers
278 views

SQL Server 2016 - write output file to mapped Samba share (CentOS 7)

I have a stored proc that's going through the tables, getting data, and write the result into a csv file (mainly to provide up to date data for FTP customers). When writing it to the local D: drive, ...
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1answer
595 views

Mongodb 3.6.3 disappears after 2 weeks on centos 7 ec2 instance

My Mongodb has disappeared 2 times, after 2 weeks, over the weekend within a 4 week time period. I had a snapshot to recover from but I can't keep on recovering my db every 2 weeks. In an ec2 ...
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1answer
118 views

Mysql showing 100% CPU usage

We are facing problem of high cpu usage for mysql process (almost 100%). Here is the information related to server Server Infos: VPS - CENTOS 7.9 kvm - 6 GB RAM - 4 Core CPU - 180 GB SSD - MariaDB And ...
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1answer
116 views

MySQL database not loading table data

My centOS 7 server had an unexpected shutdown. For some reason one of the mysql database shows that all tables are empty, but if I browse the files in /var/lib/mysq/database I can see the files(.frm ...
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1answer
745 views

how to install PL/SQL Developer on centos

Can we install and run PL/SQL Developer on CentOS 7 server? I couldn't find installation documents anywhere. If the installation is possible can someone guide me on this.
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1answer
330 views

MySQL InnoDB Cluster - Add instance issue with local port

I have an issue to add instance to MySQL InnoDB Cluster using MySQL Shell. Here are the steps that I have done: Login to one DB-01 node Run command: mysqlsh shell.connect('username@ip-address:port'); ...
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1answer
23 views

When changing the default port number from 5432 to 5332, why do I get a unix domain socket error?

I successfully followed the Postgres 11 installation instructions on Centos 7 found here. I am able to successfully create schemas / tables and insert data into the database over port 5432 with no ...
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2answers
309 views

how to change “localhost” in MariaDB

I wonder if there is any way to change localhost in MariaDB. For example, while creating a user in database, it shows 'user'@'localhost' I would like to know how to change localhost to any other ...
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0answers
25 views

MARIADB-10.3.14 VM OOM KILLED AND TUNING [duplicate]

DEDICATED VM FOR MARIADB - CENTOS 7.7 \\ 16VCPU/250G - JBOD DISKS/NO SSD. OS PARTITION AND DATABASE ARE ON DIFFERENT FILESYSTEM. Span of every two weeks, Kernel OOM happens. Reducing ...
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0answers
72 views

Pgadmin4 : unable to login.Getting error failed to create ssh tunnel

I am using CentOs7, On the command line I login to the unix server via ssh (sshpass -p $PASS ssh linux_user@linux_box_ip ;;) and then give the below command after logging to the linux box. $ psql -h &...
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4answers
12k views

How to install pgcrypto extension in postgres 10 on CentOS 7

I'm in the process of creating a postgres database for production in CentOS 7. So I already installed (yum install postgresql10-server postgresql10 after adding the repos of course) and configured ...
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1answer
3k views

Binding specific ips with Mongodb

I am using Mongodb 3.6.3 on Centos 7. I am running the below command: sudo mongod --storageEngine wiredTiger --dbpath /data --bind_ip_all --logpath /var/log/mongodb/mongod.log --fork and everything ...
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1answer
5k views

Cannot login to postgres with newly created users

I have created a number of users in postgres using createuser --interactive --password but whenever I run sudo -i -u newuser I receive the following error: sudo: unknown user: staging sudo: unable to ...
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1answer
1k views

[[FATAL]] [[DBT-06103]] The port (5,500) is already in use [duplicate]

I am trying to install oracle 18c XE on CentOS 7. I have opened the ports: firewall-cmd --permanent --add-port=1521/tcp firewall-cmd --permanent --add-port=1630/tcp firewall-cmd --permanent --add-...
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3answers
736 views

MySQL Optimization on my server

I have an active server running around 80-100 active websites. I would like to optimize the server and possibly reduce the amount of RAM and optimize my MySQL settings. I have 30 GB of RAM assigned ...
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0answers
3k views

Newly built MySQL Galera Cluster does not start up in CentOS 7

I am setting up a 3 node MySQL Galera Cluster lab environment. All 3 nodes are CentOS 7 and followed the steps in below blog to setup mysql-wsrep-5.7 https://www.dreamvps.com/tutorials/install-...
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2answers
59k views

psql: FATAL: password authentication failed for user “postgres”

I am running postgresql-9.6 on Rhel7. I know that the default/root user doesnt have a password, however i will like to use phpPgAdmin to do my work. the problem is I have edited my pg_hba.conf file to ...
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1answer
2k views

MongoDB 3.4 Server not starting with bind error following a CentOS 7.4 security update

MongoDB 3.4 server is failing to start following a CentOS security update and reboot. No configuration changes made. The previous update and reboot a couple of days earlier did not cause any ...
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6answers
141k views

How to restart PostgreSQL server under CentOS 7

I installed PostgreSQL 10.1 under a CentOS 7.3 environment. The service is started (postmaster.pid file present under /var/lib/pgsql/10/data), but I need to reload configuration or restart the server ...
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0answers
17 views

How to find out all the postgresql database cluster data directories (running and Shutdown instances) on linux server

Could you please help us to find below details. How to find out all the Postgresql database cluster data directories (running and Shutdown instances) on Linux server. Regards, Siva.
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1answer
4k views

ERROR! MySQL is running but PID file could not be found - MariaDB 10.1 - CentOS 7 - Fresh VM

So I'm having a little trouble with a BRAND new VM I just created today to test a Galera Cluster. What I have done so far is... Download and install the latest CentOS 7 in a VM. Install open-vm-...
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1answer
2k views

Oracle Database Client Installation 12c minimal install - Centos / Red Hat 7

I'm looking at reducing the Linux package prerequisites when installing the Oracle Database Client 12c on the below headless application server / stack: Install file: V839967-01.zip Application ...
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3answers
22k views

PostgreSQL 11 error: column p.proisagg does not exist

Using phpPgAdmin v5.6 and PostgreSQL v11.2 on CentOS v7, when I try to access the Functions tab within the public schema, I get the following error: ERROR: column p.proisagg does not exist LINE 18: ...
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1answer
737 views
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1answer
228 views

MongoDB Replication Set Configuration Issue on CentOS 7

My mongodb instance will not run as standalone and I haven't been able to discover why. Its probably something simple. Please point me in the right direction. Linux myserver 3.10.0-514.el7.x86_64 #...
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0answers
852 views

mysql 8 is failure to start after upgrade from 5.7

I've upgraded one of the slave server from mysql 5.6 to 5.7 and now 5.7 to 8. But after up-gradation steps done when i use systemctl start mysqld.service or systemctl restart mysqld facing error and ...
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1answer
63 views

MariaDB replication from master to slave

After doing some research around this topic, I should be attempting this task soon. However, I have two questions going around my head - could do with an experienced professional answering them. I am ...
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1answer
2k views

Can't promote PostgreSQL warm standby server to start serving data

Scenario: Two CentOS 7 machines, with ips 10.0.2.15 and 10.0.2.4 Both running PostgreSQL 9.4.6. First one (10.0.2.15) as master, and second one (10.0.2.4) as slave, not listening for clients (just ...
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0answers
597 views

Error on cassandra-3.11.3-1.noarch centos7

I've a cluster consisting of 5 cassandra nodes. The cassandra version used is cassandra-3.11.3-1.noarch The keyspace strategy and is defined as follows: CREATE KEYSPACE my_keyspace WITH ...
2
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1answer
143 views

Database Directory storage is full need to change link it to new Partition

My mysql Database Directory size is full. So I want to change it to another partition where there is large amount of space. The database version am using is MySQL 5.7.23 and OS is CentOS 7. After ...
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2answers
18k views

Can't run rs.initiate() when do mongodb replication set

Using CentOS 7. MongoDB version: 3.2.15 Hostname: node1 Make directory: mkdir /mongo-metadata /etc/mongod.conf # mongod.conf # for documentation of all options, see: # http://docs.mongodb.org/...
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1answer
2k views

Parse error in pg_hba.conf [closed]

Hope this is not as stupid a question as I think it is. But I'm in a loop and unable to find a solution. I installed Postgres in centos machine. The installation worked fine (apparently). Now I have ...
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2answers
5k views

Install mysql-workbench failed: Requires: proj, tinyxml, python-paramiko >= 1.15.1

I am installing mysql-workbench to migrate Postgres database to Mysql. OS System Version: Red Hat Enterprise Linux Server release 7.2 (Maipo) I am installing mysql-workbench and follow these ...
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2answers
1k views

Unable to Restart PostgreSQL after attempting to move pg_xlog to different partition

I am having problems getting PostgreSQL back up and running on my CentOS 7 server. Some Context: After noticing that I was quickly running out of storage space on the /root partition of the server, I ...
3
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4answers
866 views

How to best store pixels in a database?

When loading data into a table, I get the following error: ERROR: row is too big: size 8680, maximum size 8160 The table has 1000+ columns in it, which appears to be the problem. The general ...
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1answer
378 views

Issue with MongoDB Replication Set

I have 3 "CentOs 7" VM's in AWS environment in which I have setup MongoDB Repication Set using below command. mongod --fork --logpath "/var/rs1/1.log" --replSet yogi --dbpath "/var/rs1/" --port 27017 ...
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1answer
3k views

MongoDB Replication - “Failed with No route to host”

Hi, Running MongoDB version 3.4.9 on two separate servers running Centos 7. Trying to add a create a replica set but when ever I try to add a second server I get this error: devshardcfgrs:PRIMARY> ...
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1answer
1k views

How to do PostgreSQL replication on CentOS 7?

Followed this guide to do the PostgreSQL replication: https://www.digitalocean.com/community/tutorials/how-to-set-up-master-slave-replication-on-postgresql-on-an-ubuntu-12-04-vps I didn't do this: ...
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1answer
5k views

Can't add another node from primary node with MongoDB replication set

On CentOS 7. MongoDB version: 3.2.15 There are two nodes: node1 node2 node1 /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 node1 ::1 localhost ...
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3answers
19k views

Resolving port 5500 not free issue during Oracle 12c Release 2 Database Configuration Assistant installation on CentOS

Background I am attempting to install Oracle 12c on CentOS 7 (deployed as a Hyper-V virtual machine) as outlined by this installation guide. Problem Everything with my installation goes well except ...
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1answer
4k views

Node unable to join a MariaDB Galera Cluster

I'm trying to setup a third node for my MariaDB cluster. I copied over the server.cnf file from my second node (which joins the cluster and can start its own cluster). The first two work fine using a ...
1
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1answer
380 views

How to avoid intermittent “duplicate entry” error on slave when replicating mysql.time_zone_transition?

Rarely, but intermittently, MariaDB 5.5 fails to replicate the timezone tables onto a completely new replica (instance creation is all automated, so there's no room for missing/changed steps). We ...
1
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1answer
78 views

How to debug trivial MariaDB query with simple execution plan which often runs really slowly?

The query (with literal ? for dynamic query goodness): SELECT UNIX_TIMESTAMP(my_timestamp_field) AS my_name FROM my_table WHERE my_column=? This query is one of the most common in my slow query ...
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2answers
18k views

How to properly change “innodb_buffer_pool_size” value for mysql?

I have following environment: # cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) # rpm -qa | grep ^mysql-community- mysql-community-common-5.5.48-2.el7.x86_64 mysql-community-libs-5.5....
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1answer
2k views

postgresql 9.3: two instances on same port and two different ip adresses don't work

i'm setting up multiple instances of postgres 9.3 on the same machine (centos 7). I have 2 virtual ip addresses, one instance is bound to first address and second is bound to second one. Same ...