Questions tagged [amazon-ec2]

Amazon Elastic Compute Cloud (EC2)

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Cannot Access New Installation of MySQL on an Amazon EC2 Instance

I installed MySQL server on an Amazon EC2 instance and started it. Seems like it started, but when I try to do mysql -u root I get this error. mysql -u root ERROR 1045 (28000): Access denied for ...
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1answer
1k views

Configuring slave from EC2 master to Amazon RDS slave

I am configuring replication from EC2 master to Amazon RDS instance. After starting the slave, I don't see any errors but I see slave_IO: _thread is connecting. Master version:5.6.23 Slave ...
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1answer
1k 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 ...
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2answers
4k views

How to configure replication from PostgreSQL (RDS) to vanilla PostgreSQL?

I have an Amazon RDS Postgres DB and I created a "replicator" user and granted it the "replication" privilege. db=> create role replicator login password 'something'; CREATE ROLE db=> alter ...
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10 views

Cassandara ec2 Number of Nodes and autoscale for increasing 70Gb of Data

I am beginner in Cassandra, I currently have 72 GBs of Data that is growing and i will have approximately 1gbs inserted into database daily. How can i decide number of nodes in the cluster and how ...
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2answers
104 views

MySQL hitting IOPS wall in AWS, not able to utilize full volume IOPS level

We are scaling up an existing MySQL 5.6.41 (with Galera) based system running in AWS on EC2, and are hitting a wall in performance, which we believe is narrowed down to storage IOPS. Please note for ...
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0answers
24 views

Cassandra slow read performance after migrating to new AWS instance class

Cluster of 3 cassandra nodes as a dev environment. Used to run in AWS on i3.2xlarge; migrated as a test to i3en.2xlarge to evaluate for later migrating production cluster to. When running cassandra-...
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2answers
155 views

EC2 and setting up MYSQL Replication

my database size is very big around 100gb and when I restore it takes 3 days to restore. I am using amazon ec2. My question is I want to setup a new slave to MYSQL master, can I take a snapshot of ...
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1answer
183 views

Table does not exist even if there is one

I have MySQL master-slave replication setup in Amazon EC2. For the sake of resilience, I have set up LVM on RAID 10 array, on both master as well as slave. I have been using ec2-consistent-snapshot ...
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1answer
217 views

Can't bring up slave from ec2-consistent-snapshot due to uncommitted prepared transaction

I'm struggling with bringing up a slave instance using a snapshot created by ec2-consistent-snapshot, in my log it's describing the fact that an unprocessed transaction exists, but isn't that what ec2-...
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1answer
301 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
1k views

Help with Galera Cluster Auto_Increment

We're currently running a Galera cluster of 3 DB nodes. The way we're set up (due to ORM and automagical locking), we only have one of the 3 DB nodes being written to, and the other two provisioned ...
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2answers
2k views

change character_set_connection utf8mb4 mysql

I want to change character_set_connection utf8mb4. Its showing me utf8. I have follow this https://mathiasbynens.be/notes/mysql-utf8mb4 article and changed [client] default-character-set = utf8mb4 [...
4
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1answer
3k views

What to do when I get “mysqld dead but subsys locked” in my amazon ec2 micro instance?

I have an Amazon ec2 micro instance that holds a WordPress site. Since yesterday, my mysql db keep crashing saying: [ec2-user@ip-xxx-xx-xx-xxx ~]$ sudo service mysqld status mysqld dead but subsys ...
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2answers
644 views

Export and Import large database from one rds of amazon to newly created amazon rds

We are facing some issue. We would like to export and import mysql database "xyz" from old rds say xyz-rds to newly created rds say abc-rds (mysql). We are approaching common method taking full ...
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1answer
320 views

connecting to mongodb on ec2 instance using the private IP address

Im trying to connect to my MongoDB that is on my EC2 instance. I am able to connect to using the public dns with this statement: mongoClient = new MongoClient("ec2-3-92-197-163.compute-1....
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0answers
44 views

Mongodb won't start after adding 2nd net option to mongod.conf file

I try to add another net with the its corresponding bind ip and port to my AMI ec2 mongod.conf file so I will be able to create a 2 node replica set but when I run the command "sudo service mongos ...
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0answers
36 views

AWS RDS PostgreSQL: Significant query runtime difference between two (identical?) instances

TL;DR: Solution The problem was that one instance hat magnetic storage attached and was therefore significantly slower. Original Question I have two identical AWS RDS PostgreSQL 10.6 databases ...
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1answer
95 views

How to remotely manage (with PhpMyAdmin) a MySQL RDS on a load-balanced AWS Elastic Beanstalk setup?

Although there are similar questions and topics, I can't find a solution that currently works. I specifically wrote remotely manage because I'd like to use my home computer's PhpMyAdmin to directly ...
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1answer
1k views

MySQL GTID error 1236

I am try to reduce machine come to live in production.. MySQL is making bottleneck. What i trying. I update code in one machine and also MySQL restore everything is working fine after this i am making ...
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1answer
1k views

SQL Server AG Listener issues in an AWS VPC

I'm experimenting with creating a 2-node SQL Server Availability Group following Guy Glantser's excellent guide at MadeiraData where he describes a configuration with no AD domain or internal DNS. ...
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1answer
17 views

Do I need SQS queues to store remote data in the Amazon Web Services (AWS) cloud?

My first question is, do I need SQS queues to receive my remote data, or can it go directly into an Amazon cloud storage solution like S3 or EC2? Currently, my company uses a third-party vendor to ...
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2answers
120 views

MySQL 5.7.21 not releasing memory after writing partition to disk

I've been testing extracting with SELECT * from a partition in a partitioned table in MySQL 5.7.21 and 5.7.22 I'm out of ideas and hitting my head on a wall. The goal is to write the data to S3 for ...
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2answers
176 views

MySQL on Windows or Linux [closed]

I am new to the Database region while have to migrate the company's database from AWS RDS to AWS EC2 and subscribe MySQL Enterprise edition. What I am confused now is which OS should I choose, ...
6
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1answer
2k views

Disable MySQL replication on rds

I want set up replication between an Amazon RDS MySQL DB instance and a MySQL instance that is external to Amazon RDS. but Slave_IO_Running: Connecting how to solve this problem? I have already ...
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4answers
14k views

“ORA-24454: client host name is not set” when connecting from Ubuntu instance on AWS EC2

Some background: I am attempting to connect to an Oracle database. I have a username, password, IP address, port, and service name. I only have access to this database from an Ubuntu EC2 instance on ...
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0answers
168 views

SQL Server with peer-to-peer replication migration from on-prem to AWS EC2 instances

I need to move three on-prem servers with peer-to-peer replication to AWS. SQL Server version is 2012. The AWS SQL Server will be on EC2 instances as the SQL Server RDS doesn't support replication yet....
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0answers
85 views

How to connect to a SQL Server from another computer using SSMS with only hostname?

I set up a VM server computer on AWS EC2 and got a SQL Express Server running on it on port 1433. I made sure to allow TCP/IP requests and allowed TCP port 1433 through the firewall along with UDP ...
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0answers
51 views

troubleshoot cpu usage mysql

We are running a few Mysql server on EC2 instances and RDS instances on AWS. From time to time they suddenly spike in CPU, and/or memory usage but when we login into the instances, it's too late and ...
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0answers
69 views

Improve qps for postgres write

I am trying to improve the performance of my postgres instance in aws. I am using aws rds db.t2.large Here is my table structure CREATE TABLE public.my_test ( test_index1 text COLLATE ...
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3answers
15k views

How to run MongoDB as a non root user in Linux?

I can start MongoDB as $sudo service mongod start. When I start without sudo it gives me this error: /etc/init.d/mongod: line 58: ulimit: open files: cannot modify limit: Operation not permitted /etc/...
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3answers
11k views

Get WAL files from AWS RDS PostgreSQL instance

We have a Postgres RDS instance on Amazon Web Services. We have automatic backups enabled, and we take snapshots on a daily basis. We would like to generate a local 'up-to-date' backup of the RDS ...
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0answers
484 views

How to execute Stored Procedure of MS SQL server through Amazon Lambda?

I have one stored procedure which is too long and occurs more than a thousand times with different variables. Normal execution on Server takes around 3-4 hours to complete. That is why I want to ...
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6answers
10k views

Amazon: How to change database name in Amazon RDS MySQL?

I want to change MYSQL database name of the DB instance of Amazon RDS. How it can be possible?
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0answers
87 views

Oracle 11g - stuck while creating tables

I have EC2 instance with 60GB Ram, 8 CPU and over 50GB space. Tried to create 75K empty tables with sqlplus -s / as sysdba @script.sql and it works fine up to 48K tables (they are created fine with ...
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1answer
28 views

Database Schema design of server running status log

I am working with 4 AWS EC2 instances (servers). Each Instance has Instance ID and Instance Name. Instance ID is unique. Each of them having multiple application servers, like on of them is running ...
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2answers
63 views

MongoDB Production Amazon - 3 data nodes per replica set, or 2 data nodes plus a shared arbiter

I have an Amazon EC2 deployment of mongodb (3.4). Things are going well, but the DB size is growing quickly. I am about to shard a large collection in order to begin horizontal scaling (total space ...
14
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2answers
59k views

Mongo Create a user as admin for any database raise an error

I am trying to create a simple user with the rights permission to access to any database and can do any actions. When I trying to execute the createUser command I got this error: db.createUser({ user:...
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1answer
305 views

How to take advantage of AWS EC2 instance store (SSD) in a database environment?

I am trying to set up a database environment with Ubuntu and PostgreSQL (I didn't want to use RDS because I'm a Ubuntu person). I looked at description for the R3 instance type: Use Cases ...
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1answer
336 views

adding node to existing availability group

Currently have a 2 node availability group, trying to add a 3rd. Added Node3 to the Windows Cluster. Node3 appears as UP in "Nodes" on the Failover Cluster Manager console. However I have the ...
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0answers
217 views

Backing up large databases in AWS EC2

Does it make sense to back up SQL Server databases locally in the cloud, particularly AWS? "SQL Server Timeouts During Backups and CHECKDB" is an article on brentozar.com which points out the fact ...
0
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1answer
47 views

Mongo DB Memory Utilisation freezes app needs restart

I am running a project using Mongo DB and Django, I have 2 separate instance for my Django project and database each 16GB ram t2xlarge ubuntu ec2 instances. I am facing issue that within a day or two ...
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1answer
237 views

Moved a MySQL Database to another server, but socket keeps pointing to localhost

I know I shouldn't bother with this, maybe I should disable the old mysql, but this is a Magento virtual appliance from Bitnami thats work as a whole (application and database on the same server). I ...
2
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0answers
226 views

SSRS 2016 Generates SQL Server log entry daily

First, a bit about our environment. We run two instances of SQL Server 2016 Enterprise (13.0.4435.0) on Windows 2016 Servers. To save money, we run SSRS 2016 alongside SQL Server on both servers We ...
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0answers
136 views

AWS - SQL Server Agent “white dot” problem

I'm trying to setup a SQL Server 2016 installation in AWS EC2 and can't seem to get the security group settings right. Please note the "white dot" in the screen cap below - I am unable to administer ...
5
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2answers
461 views

Amazon RDS MySQL limitations

I intend to use Amazon RDS MySQL with one db.t2.micro instance. Are there any limitations of max_connections and max_questions ? I searched on the Internet and I found that there is a default value ...
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1answer
1k views

What could be causing this rogue CPU spike on MS SQL Server running on EC2?

We've just had a rogue CPU spike on one of our main SQL boxes, and we're struggling to work out what caused it. We use Red Gate SQL Monitor to track various performance metrics, and we saw a couple of ...
1
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1answer
728 views

AWS - MySQL server “Service CPU Usage” stuck at 50% / being throttled?

I have a c4.large EC2 instance which is running Windows Server 2012 and MySQL. When I look at the CPU usage on the machine it seems that MySQL is capping out at 50% CPU usage when the system is under ...
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1answer
29 views

Getting started with AWS: Price for large databases?

At the moment, I have a database that isn't accessed very often, but has 400 million rows and totals out to be 100gb disk space. I'm worried that, despite the low usage, I'll have to shell out for a ...
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1answer
143 views

Move mssql db Amazon RDS to EC2 [closed]

I have my 200 gb database. I want to move EC2 from RDS. I work on a research to prevent the problems that you may see,but it has not been done before. There may be problems; *Security weaknesses, ...