云数据库 RDS

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云数据库 RDS

限制说明

配额限制

配额 限制
只读实例 最多创建8个只读实例
标签 标签键唯一,最大设置10个。详细信息请参考资源标签简介
实例备份
  • 自动备份:每天自动备份,备份保留90天
  • 手动备份:每个地域最多支持5个
  • binlog:默认保留24h
日志保留天数
  • 错误日志:7天
  • 慢日志统计:7天
  • 慢日志明细:7天

使用限制

操作 说明
变配 配置调整过程中,RDS 实例可正常使用,调整完成后,会有一个短暂的闪断,需保证应用应用服务有数据库重连机制。
版本升级 版本升级的过程中,主备实例的会先升级备机,然后进行切换,因此会有一个闪断,应用需重连。
迁移可用区 迁移时用户可正常连接到数据库实例,并读写数据。 迁移完成后,有一个短暂的闪断,应用需重连。
备份 主备切换和重启实例会中断当前正在进行的备份操作,要尽量避免在备份进行时进行这两个操作。

功能限制

实例恢复

  • 针对已经删除的实例,不支持恢复。

创建实例

  • 针对单地域的实例数是有限制的,一个地域默认最多支持 5 个实例,如果有更多实例需求,请提交工单。

数据库库名保留关键字

mysql,information_schema,performance_schema,sys,percona, admin, aurora, replicator, xtrabak, root, mysql, test, eagleye, information_schema, guest, add, analyze, asc, between, blob, call, change, check, condition, continue, cross, current_timestamp, database, day_microsecond, dec, default, desc, distinct, double, each, enclosed, exit, fetch, float8, foreign, goto, having, hour_minute, ignore, infile, insensitiv, int1, int4, interval, iterate, keys, leading, like, lines, localtimestamp, longblob, low_priority, mediumint, minute_microsecond, modifies, no_write_to_binlog, on, optionally, out, precision, purge, read, references, rename, require, revoke, schema, select, set, spatial, sqlexception, sql_big_result, ssl, table, tinyblob, to, true, unique, update, using, utc_timestamp, varchar, when, with, xor, all, and, asensitive, bigint, both, cascade, char, collate, connection, convert, current_date, current_user, databases, day_minute, decimal, delayed, describe, distinctrow, drop, else, escaped, explain, float, for, from, grant, high_priority, hour_second, in, inner, insert, int2, int8, into, join, kill, leave, limit, load, lock, longtext, match, mediumtext, minute_second, natural, null, optimize, or, outer, primary, raid0, reads, regexp, repeat, restrict, right, schemas, sensitive, show, specific, sqlstate, sql_calc_found_rows, starting, terminated, tinyint, trailing, undo, unlock, usage, utc_date, values, varcharacter, where, write, year_month, alter, as, before, binary, by, case, character, column, constraint, create, current_time, cursor, day_hour, day_second, declare, delete, deterministic, div, dual, elseif, exists, false, float4, force, fulltext, group, hour_microsecond, if, index, inout, int, int3, integer, is, key, label, left, linear, localtime, long, loop, mediumblob, middleint, mod, not, numeric, option, order, outfile, procedure, range, real, release, replace, return, rlike, second_microsecond, separator, smallint, sql, sqlwarning, sql_small_result, straight_join, then, tinytext, trigger, union, unsigned, use, utc_time, varbinary, varying, while, x509, zerofill, jcloud_yunding_db_push, jcloudv_push_rw, jcloudv_push_ro, jddb_percona

数据库账号保留关键字

root,admin,os_admin,replicater,monitor,percona, admin, aurora, replicator, xtrabak, root, mysql, test, eagleye, information_schema, guest, add, analyze, asc, between, blob, call, change, check, condition, continue, cross, current_timestamp, database, day_microsecond, dec, default, desc, distinct, double, each, enclosed, exit, fetch, float8, foreign, goto, having, hour_minute, ignore, infile, insensitiv, int1, int4, interval, iterate, keys, leading, like, lines, localtimestamp, longblob, low_priority, mediumint, minute_microsecond, modifies, no_write_to_binlog, on, optionally, out, precision, purge, read, references, rename, require, revoke, schema, select, set, spatial, sqlexception, sql_big_result, ssl, table, tinyblob, to, true, unique, update, using, utc_timestamp, varchar, when, with, xor, all, and, asensitive, bigint, both, cascade, char, collate, connection, convert, current_date, current_user, databases, day_minute, decimal, delayed, describe, distinctrow, drop, else, escaped, explain, float, for, from, grant, high_priority, hour_second, in, inner, insert, int2, int8, into, join, kill, leave, limit, load, lock, longtext, match, mediumtext, minute_second, natural, null, optimize, or, outer, primary, raid0, reads, regexp, repeat, restrict, right, schemas, sensitive, show, specific, sqlstate, sql_calc_found_rows, starting, terminated, tinyint, trailing, undo, unlock, usage, utc_date, values, varcharacter, where, write, year_month, alter, as, before, binary, by, case, character, column, constraint, create, current_time, cursor, day_hour, day_second, declare, delete, deterministic, div, dual, elseif, exists, false, float4, force, fulltext, group, hour_microsecond, if, index, inout, int, int3, integer, is, key, label, left, linear, localtime, long, loop, mediumblob, middleint, mod, not, numeric, option, order, outfile, procedure, range, real, release, replace, return, rlike, second_microsecond, separator, smallint, sql, sqlwarning, sql_small_result, straight_join, then, tinytext, trigger, union, unsigned, use, utc_time, varbinary, varying, while, x509, zerofill, jcloud_yunding_db_push, jcloudv_push_rw, jcloudv_push_ro, jddbaclholder
更新时间:2022-04-14 14:48:51
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