Questions tagged [amazon-rds]

Amazon Relational Database Service is a web service that makes it easy to set up, operate, and scale a relational database in the cloud.

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12k views

Local database vs Amazon RDS

I am doing large INSERT into a local MySQL database I am at 2,000,000 rows and am really starting to notice the slowdown now. I always heard that MySQL wasn't very scalable I expect this database to ...
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2answers
8k views

When should I think about upgrading our RDS MySQL instance based on memory usage?

It seems like our DB server is doing garbage collection at a increasingly faster rate, which seem normal since it's growing. What's a good rule of thumb of when to switch to a bigger instance, I'm not ...
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26k views

Should I increase max_connections in AWS RDS t1-micro for MySQL?

I have an AWS RDS t1-micro running MySQL 5.5. It gives me too many connections error. I checked and it allows 34 maximum connections concurrently. What I have read is that i can increase this max ...
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1answer
9k views

How do I reduce the database size on AWS RDS MySQL?

I have an RDS MySQL database on Amazon Web Services. I want to reduce the size of the database in the control panel in order to save money. Q: How do I make it smaller? Their site says you have to ...
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2answers
2k views

How to `vacuumlo` an RDS PostgreSQL database?

As you may have noticed, as a fully managed data base as a service product, AWS Relational Data base Service (RDS) restricts the execution of userland commands. I was staging a production database, ...
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2answers
22k views

Amazon RDS for MySQL vs installing MySQL on an Amazon EC2 instance

At work, we host all our webservers on Amazon EC2 and usually have used MySQL databases installed on the same box as our Apache webserver, and communicated with them on localhost. We now face a need ...
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1answer
4k views

MySQL optimization

I'm trying to optimize a MySQL Server to be able to serve as many connections as it can. The server is in AmazonAWS RDS and has currently the following resources: --7.5 GB memory, 4 ECUs (2 ...
5
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1answer
2k views

AWS RDS showing large growth in Write Ops/sec, despite low # DB connections?

I have a Multi-AZ AWS RDS instance running MYSQL 5.5 I've noticed that my write ops/sec are growing fairly rapidly, despite low (and sometimes zero) DB connections - see charts for Avg write ops/sec ...
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2answers
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Extremely slow query on indexed column

I'm getting a extremely slow query on an indexed column. Given the query SELECT * FROM orders WHERE shop_id = 3828 ORDER BY updated_at desc LIMIT 1 explain analyze returned: QUERY PLAN ----...
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1answer
2k views

Synchronizing a RDS instance with another RDS instance

I have a database on an RDS Instance (master) that needs to be synchronized to another RDS instance (slave). I created a read-replica for the first one, but that is created as read_only so I cannot do ...
4
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3answers
334 views

Achieving “sequence number”, rather than dateTime, for updates; postgres specifically

So a postgres database (specifically, an AmazonRDS instance fwiw). It's easy enough to arrange things to get the last updated (or created) time for any record. That information would be a datetime. ...
4
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1answer
3k views

Does the Amazon RDS backup/snapshot service lock tables?

We have a database that is 100+GB. Most tables use the InnoDB engine. A regular dump takes 1-2 hours. If we moved to Amazon RDS, would this backup cause table locks? Does Amazon use a simple ...
6
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1answer
3k views

Best strategies to have a backup of an RDS MySQL database

I have an AWS RDS MySQL database. I'm not a DBA, so my knowledge is limited. I wish to design strategies to have zero data loss in case of a failure, in terms of replication or data backup. I know ...
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1answer
3k views

I have delete database from mysql but storage is not freed

I have deleted multiple databases (schema) from mysql on amazon RDS but the storage is not freed, is there anything else I should do to free up the storage? I have a mysql database that the total ...
3
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1answer
2k views

Keeping MySQL staging database on same server updated from production

I just migrated my MySQL 5.5.20 to Amazon RDS from MySQL on EC2. The one thing I'm having difficulty with is how to keep my staging database updated from production. Before, I just ran a nightly ...
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3answers
12k views

How to decide whether to enable MySQL query cache using InnoDB

How should the decision to enable / disable the MySQL query cache be made, on a server that uses just InnoDB tables. Say for example, if the cache is enabled, then how should the output of: SHOW ...
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2answers
19k views

Connecting to AWS RDS DBInstance with MySQL workbench

I am trying to evaluate AWS RDS to use as possible DB for our application. I have created a DBInstance(micro) and added IP security group. I am able to connect to the DBInstance from Xampp shell ...
2
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1answer
4k views

MySQL 5.5 Runs Out of Memory, Drops All Connections When Creating Many Databases

I'm running into a problem when I create a large number of databases consecutively on an Amazon RDS db.m1.large instance. The MySQL Engine Version is 5.5.23. At some point, the RDS instance drops all ...
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1answer
19k views

Too Many database connections on Amazon RDS

We are having problems with users running queries/views in Drupal that occasionally cause our site to freeze. The freeze occurs because the query causes the number of database connections to go up to ...
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2answers
3k views

CPU usage on RDS instance monotonically increasing with no change to query volume

I have two RDS instances: a R/W master and a read-only replica. On 29th June, the replica stopped registering replication data - not sure if this is related. On July 3rd, the master's CPU usage ...
5
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2answers
15k views

How to solve MySQL “The table is full” error 1114 with Amazon RDS?

I am trying to add a new column in a table and the query giving me this error 1114. My RDS instance size is small. 1.7 GB memory, 1 ECU (1 virtual core with 1 ECU) Table i am trying to modify is ...
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1answer
7k views

#1041 - Out of memory issue in mysql [closed]

I am using Amazon RDS db.m1.medium instance. It has at least 40-50 database and atleast 10k table. For last one year it was working fine, but today I was altering one table It started giving error. I ...
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2answers
9k views

MySQL : Extract SQL statements from binlog

I am trying the following command to extract SQL statements from binlog for using it in another database (Amazon RDS) mysqlbinlog /var/lib/mysql/binlog.000027 --start-position=54375264 --base64-...
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1answer
5k views

MySQL on RDS, data transfer from one instance to another as a production job

I have a MySQL RDS instance ("production") from which I need to copy incremental data to another MySQL RDS instance ("reporting"). “Incremental data” being the new rows in certain tables. Currently ...
6
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1answer
2k views

Debug query on big table that is sometimes slow

I have a web API that is backed by a Postgres database, and the performance is generally very good. I monitor the performance of both the database and the application as a whole. Most of my queries (...
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2answers
1k views

Installing a language with Amazon RDS?

I am using an instance of Postgres on RDS and I am trying to run: => create language plperlu; but I get: ERROR: must be superuser to create procedural language "plperlu" If I run: => grant ...
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1answer
5k views

Example of loading into RDS from S3 using SQL*Loader

Does anyone have a working sample of loading data into an Amazon AWS RDS Oracle database using SQL*Loader where the source file is on S3? In principle it's clearly possible. The Amazon RDS Data ...
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1answer
1k views

Connection Timeouts and Failed Database Connections on AWS RDS

Environment details - Amazon RDS running PostgreSQL 9.3.14, db.r3.xlarge, IOPS 2000, 500 GB Issue - Numerous java.sql.SQLTimeoutException: Timeout after 30000ms of waiting for a connection and java....
3
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1answer
657 views

Random write freezes

I have a MySQL 5.5.23 DB that performs about 3k qps, 5% of which are writes. Lately, I've been having a big problem with random write freezes. Everything is going great, and then all of a sudden any ...
3
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1answer
3k views

Replication from EC2 Master to RDS Slave - Connecting to master

I am migrating my company's database from an EC2 instance to an RDS instance. I have already migrated a snapshot of data and am now trying to set up replication to get the data that has been added ...
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2answers
125 views

How should I model a database structure to retain calculation results?

I am trying to improve the performance of the queries related to one table that I consider "weird", which could be created by the next script: CREATE TABLE `CalcTable` ( `id` int(11) NOT NULL ...
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1answer
155 views

Does AWS ever `vacuumlo` PostgreSQL RDS instances?

Link to the long story happened before (and reason to have) this question. Does AWS ever vacuumlo PostgreSQL RDS instances?
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1answer
1k views

innodb_flush settings on Amazon RDS

Setting innodb_flush_log_at_trx_commit = 2 improves my application performance considerably on my local development environment. The response time and number of requests per second on a 40 concurrent ...
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1answer
3k views

unable to create schema on amazon rds for postgres

I'm trying to create a schema on a postgres instance located on Amazon rds. That schema would be used to import data from an existing schema built on a local db. Issue is I do not have permissions ...
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1answer
146 views

MySQL data precision confusion

I have two tables with same column. First table: DESC orders; Field Type Null Key Default Extra order_id int(8) unsigned zerofill NO PRI (null)...
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1answer
3k views

Trying to use SMO Transfer Object to transfer a database from one instance to another

The schema tables are owned by dbo and another schema name. The code below is not moving over any tables. Is there something else that I need to add to make it transfer the tables? There are no stored ...
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1answer
458 views

Cluster command locking read only queries on replica

I noticed that clustering can take a long time and lock the table entirely, even for reads. Index Organized Tables and incremental clustering would be perfect, but sadly they aren't supported by ...
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1answer
52 views

Why is MySQL choosing that index?

I have a large indexed table with over 35 million rows. Here are the indexes, with a naming convention that shows their sequential column order: IDX_E93438363DAE128B, ...
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0answers
226 views

Amazon RDS SQL server and DBCC Checkdb [closed]

New Company and new to Amazon RDS. Several databases have been migrated to the cloud because "everything" is done for us a manager has stated. I have explained standard DBA tasks are still required ...
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1answer
876 views

PostgreSQL on RDS: How to bulk import data with FK constraints?

Is there an efficient way to bulk import data into a PostgreSQL 9.4 database on RDS that makes extensive use of foreign key constraints? The standard method of using pg_restore fails because RDS does ...
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2answers
2k views

Can we disable binary logging for one specific session or user in AWS RDS

Currently we have a situation to disable binary logging for one set of queries on AWS RDS. We thought to set log-bin=0 for that specific session. As per Amazon, this is not possible. Is there any work ...
0
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3answers
925 views

Optimize mysql --> 'show global status'

I am working in the optimization of a MySQL Wordpress database running in a RDS instance at Amazon AWS. The instance is a t2.medium machine with 4GiB of RAM and 2vCPU. The size of the DB in a sql file ...
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2answers
3k views

MySQL Community Edition Capacity

I am using MySQL Community Edition on Amazon RDS service. It is a very large database, 2/3 tables has about 10 millions records and 4-5 tables has 7-8 millions records. Questions How much capacity ...
0
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1answer
475 views

Reason for multiplicity of character/collation settings in MySQL?

The last 48 hours or so I spend on trying to determine the cause for sporadic crashes of my MySQL (Aurora) DB. Turns out they were attributed to my mixing of database, table, column and stored ...