[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-05 (世界標準時間)。"],[],[],null,["# Product constraints\n\nThis page describes product constraints that you should take into consideration\nwhen planning and implementing your Memorystore for Redis solution.\n\nBlocked Redis commands\n----------------------\n\n| **Note:** The COMMAND, MONITOR, and OBJECT commands are available for instances created after November 4, 2019.\n\n- ACL CAT\n- ACL DELUSER\n- ACL GENPASS\n- ACL GETUSER\n- ACL HELP\n- ACL LIST\n- ACL LOAD\n- ACL LOG\n- ACL SAVE\n- ACL SETUSER\n- ACL USERS\n- ACL WHOAMI\n- BGREWRITEAOF\n- BGSAVE\n- CLIENT\n- CLUSTER\n- COMMAND\n- CONFIG^1^\n- DEBUG\n- LASTSAVE\n- MIGRATE\n- MONITOR\n- OBJECT\n- SHUTDOWN\n- REPLICAOF\n- SAVE\n\n^1^ Memorystore for Redis blocks the `CONFIG` command, which stops you\nfrom modifying the `redis.conf` file for your Redis server. However, you can\nuse the gcloud CLI to modify a defined set of [Supported Redis configurations](/memorystore/docs/redis/supported-redis-configurations).\n\nReplication backlog for Standard Tier instances\n-----------------------------------------------\n\nStandard Tier Memorystore for Redis instances reserve 10% of primary-node\nmemory for replication backlog usage. When [monitoring your instance](/memorystore/docs/redis/monitoring-instances),\nthis backlog appears in the **used memory** metric, even if the instance is\nempty.\n\nYou can only run one admin operation at a time\n----------------------------------------------\n\nExamples of Memorystore for Redis admin operations are resizing, renaming, and\nchanging other Redis instance configurations. Only one of these commands can be\nrun at a time. You will have to wait for any admin operation to complete before\nyou can run another one. During these operations, you can still run Redis\ncommands and access the data in the Redis instance.\n\nQuotas and limits\n-----------------\n\nFor information on the Memorystore for Redis instance capacity quota and API\nrequests quota, see [Quotas and Limits](/memorystore/docs/redis/quotas)."]]