AWS RDS connection spike during backup












0















Since last 2 days I have been observing a huge spike in the DB connections in RDS during the backup time



AWS RDS DB connections for 2 weeks (Sum over 15 minutes)



Only message I see in the events is -



DB Instance aa********* contains MyISAM tables that have not been migrated to InnoDB. These tables can impact your ability to perform point-in-time restores. Consider converting these tables to InnoDB. Please refer to http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonRDSInstances.html#Overview.BackupDeviceRestrictions










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  • 2





    MyISAM tables do not have row-level locks, so the whole table has to be locked during the backup. This may cause some peeks. At that page you provided you can read: "For the MySQL DB engine, automated backups are only supported for the InnoDB storage engine. Use of these features with other MySQL storage engines, including MyISAM, can lead to unreliable behavior while restoring from backups. Specifically, since storage engines like MyISAM don't support reliable crash recovery, your tables can be corrupted in the event of a crash." This explains the message you are getting.

    – petrch
    Nov 24 '18 at 13:13
















0















Since last 2 days I have been observing a huge spike in the DB connections in RDS during the backup time



AWS RDS DB connections for 2 weeks (Sum over 15 minutes)



Only message I see in the events is -



DB Instance aa********* contains MyISAM tables that have not been migrated to InnoDB. These tables can impact your ability to perform point-in-time restores. Consider converting these tables to InnoDB. Please refer to http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonRDSInstances.html#Overview.BackupDeviceRestrictions










share|improve this question


















  • 2





    MyISAM tables do not have row-level locks, so the whole table has to be locked during the backup. This may cause some peeks. At that page you provided you can read: "For the MySQL DB engine, automated backups are only supported for the InnoDB storage engine. Use of these features with other MySQL storage engines, including MyISAM, can lead to unreliable behavior while restoring from backups. Specifically, since storage engines like MyISAM don't support reliable crash recovery, your tables can be corrupted in the event of a crash." This explains the message you are getting.

    – petrch
    Nov 24 '18 at 13:13














0












0








0








Since last 2 days I have been observing a huge spike in the DB connections in RDS during the backup time



AWS RDS DB connections for 2 weeks (Sum over 15 minutes)



Only message I see in the events is -



DB Instance aa********* contains MyISAM tables that have not been migrated to InnoDB. These tables can impact your ability to perform point-in-time restores. Consider converting these tables to InnoDB. Please refer to http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonRDSInstances.html#Overview.BackupDeviceRestrictions










share|improve this question














Since last 2 days I have been observing a huge spike in the DB connections in RDS during the backup time



AWS RDS DB connections for 2 weeks (Sum over 15 minutes)



Only message I see in the events is -



DB Instance aa********* contains MyISAM tables that have not been migrated to InnoDB. These tables can impact your ability to perform point-in-time restores. Consider converting these tables to InnoDB. Please refer to http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonRDSInstances.html#Overview.BackupDeviceRestrictions







mysql amazon-web-services amazon-rds database-backups mysql-backup






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asked Nov 22 '18 at 4:44









HarshitHarshit

4741624




4741624








  • 2





    MyISAM tables do not have row-level locks, so the whole table has to be locked during the backup. This may cause some peeks. At that page you provided you can read: "For the MySQL DB engine, automated backups are only supported for the InnoDB storage engine. Use of these features with other MySQL storage engines, including MyISAM, can lead to unreliable behavior while restoring from backups. Specifically, since storage engines like MyISAM don't support reliable crash recovery, your tables can be corrupted in the event of a crash." This explains the message you are getting.

    – petrch
    Nov 24 '18 at 13:13














  • 2





    MyISAM tables do not have row-level locks, so the whole table has to be locked during the backup. This may cause some peeks. At that page you provided you can read: "For the MySQL DB engine, automated backups are only supported for the InnoDB storage engine. Use of these features with other MySQL storage engines, including MyISAM, can lead to unreliable behavior while restoring from backups. Specifically, since storage engines like MyISAM don't support reliable crash recovery, your tables can be corrupted in the event of a crash." This explains the message you are getting.

    – petrch
    Nov 24 '18 at 13:13








2




2





MyISAM tables do not have row-level locks, so the whole table has to be locked during the backup. This may cause some peeks. At that page you provided you can read: "For the MySQL DB engine, automated backups are only supported for the InnoDB storage engine. Use of these features with other MySQL storage engines, including MyISAM, can lead to unreliable behavior while restoring from backups. Specifically, since storage engines like MyISAM don't support reliable crash recovery, your tables can be corrupted in the event of a crash." This explains the message you are getting.

– petrch
Nov 24 '18 at 13:13





MyISAM tables do not have row-level locks, so the whole table has to be locked during the backup. This may cause some peeks. At that page you provided you can read: "For the MySQL DB engine, automated backups are only supported for the InnoDB storage engine. Use of these features with other MySQL storage engines, including MyISAM, can lead to unreliable behavior while restoring from backups. Specifically, since storage engines like MyISAM don't support reliable crash recovery, your tables can be corrupted in the event of a crash." This explains the message you are getting.

– petrch
Nov 24 '18 at 13:13












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