Maximizing value of max_connections in AWS RDS

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Where can I find the highest value of max_connections in AWS RDS?
Apr 23, 2018 in Cloud Computing by Meci Matt
• 9,460 points
1,496 views

3 answers to this question.

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You have it in the console. You should have:

  • t2.micro 66
  • t2.small 150
  • m3.medium 296
  • t2.medium 312
  • m3.large 609
  • t2.large 648
  • m4.large 648
  • m3.xlarge 1237
  • r3.large 1258
  • m4.xlarge 1320
  • m2.xlarge 1412
  • m3.2xlarge 2492
  • r3.xlarge 2540

Refer this for more info: http://tritoneco.com/2015/11/23/max_connections-at-aws-rds-mysql-instance-sizes/

answered Apr 23, 2018 by DragonLord999
• 8,450 points
0 votes

Here is the Chart I made telling you those per-Server Model limits

MODEL      max_connections innodb_buffer_pool_size
---------  --------------- -----------------------
t1.micro   34                326107136 (  311M)
m1-small   125              1179648000 ( 1125M,  1.097G)
m1-large   623              5882511360 ( 5610M,  5.479G)
m1-xlarge  1263            11922309120 (11370M, 11.103G)
m2-xlarge  1441            13605273600 (12975M, 12.671G)
m2-2xlarge 2900            27367833600 (26100M, 25.488G)
m2-4xlarge 5816            54892953600 (52350M, 51.123G)
answered Aug 20, 2018 by Priyaj
• 57,640 points
0 votes

AWS RDS Max Connections Limit As Per Instance Type
 

AWS sets the MySQL max connections system varies according to the size of the RDS instance.  A “Too many connections” error message may be displayed if this is reached.

Maximum Database Connections Chart

DB Engine Parameter Allowed Values Default Value
MariaDB and MySQL max_connections 1–100000 {DBInstanceClassMemory/12582880}

Oracle

processes 80–20000 LEAST({DBInstanceClassMemory/9868951}, 20000)
sessions 100–65535
PostgreSQL max_connections 6–8388607 LEAST({DBInstanceClassMemory/9531392}, 5000)
SQL Server Maximum number of concurrent connections 0–32767 0 (unlimited)
answered Jul 23 by Sagar

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