mongorestore问题

https://groups.google.com/g/mongodb-user/c/NYCXhKvxh-4

https://groups.google.com/g/mongodb-user/c/Bjta64RXRVE

https://groups.google.com/g/mongodb-user/c/2Ob300olwKM

https://groups.google.com/g/mongodb-user/c/XQN9wUrTWQY

https://support.huaweicloud.com/mongoug-nosql/mongo_migration_0004.html

https://www.alibabacloud.com/help/zh/mongodb/use-cases/confirm-the-progress-of-adding-or-removing-shard-nodes

 

echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo never > /sys/kernel/mm/transparent_hugepage/defrag

systemctl list-units|grep mongo|awk '{print $1}'|xargs -I {} systemctl cat {}|egrep mongodb.*service|awk '{print $NF}'|xargs -I {} sed -i 's#ExecStart            = /data/#ExecStart            = /usr/bin/numactl --interleave=all /data/#g' {}

systemctl list-units|grep mongo|awk '{print $1}'|xargs -I {} systemctl cat {}|egrep mongodb.*service|awk '{print $NF}'|xargs -I {} cat {}|grep ExecStart

https://www.mongodb.com/zh-cn/docs/manual/administration/production-notes/

　　

shared

https://www.mongodb.com/zh-cn/docs/manual/sharding/

https://www.mongodb.com/zh-cn/docs/manual/core/hashed-sharding/

https://help.aliyun.com/zh/mongodb/use-cases/configure-sharding-to-maximize-the-performance-of-shards

https://www.mongodb.com/zh-cn/docs/v5.0/core/sharding-choose-a-shard-key/#std-label-sharding-shard-key-selection