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Full disclosure, I'm the product manager for Cloud Memorystore 1) We are not using persistence at all in beta, this is something we are working towards 2) Sca

Full disclosure, I'm the product manager for Cloud Memorystore 1) We are not using persistence at all in beta, this is something we are working towards 2) Scaling of basic tier will result in a full cache flush and will cause downtime during the scaling process. 3) That's correct 4) Yes we will be making Import-Export of RDB very soon

sitkack 8y ago
> 1) We are not using persistence at all in beta, this is something we are working towards Persistence is a key feature of Redis, it isn't just a fancy memcached. This severely limits the applicability of this offering.
- jkaplowitz 8y ago
  So does the beta label. :) Both will change in time, from what the PM said.
  - dannyw 8y ago
    It’s like releasing a beta for DNS that doesn’t support IPv6 or CNAMES.
    - rkangel 8y ago
      Exactly. It will be still be useful to some people, it allows them to get something working end-to-end, and then iterate on it to provide the features for more people.
      - sitkack 8y ago
        Not providing persistence is setting people up to lose data. It is the wrong move.
hamandcheese 8y ago
> We are not using persistence at all in beta Maybe don’t advertise it as a “data store” then.
- jkaplowitz 8y ago
  Transient caches are still a useful type of data store for better performance... That said, they're noting it as a goal and a beta limitation, so they're not satisfied with pure transience either.
  - deleted 8y ago
    [deleted]
  - hamandcheese 8y ago
    That’s fine, but it should be made way more obvious what this is and what it isn’t. This goes against expectations.
    - antonvs 8y ago
      Its name is Cloud MemoryStore, not Cloud Diskstore. That should set expectations right there.
      - hamandcheese 8y ago
        They use the term “data store” multiple times, not to mention: > and features like persistence, replication and pub-sub. (Customer testimonial) > We have used Redis on everything from storing asynchronous task queues for tens of thousands of CPUs to a centralized persisted key-value pair store for the feature vectors output by our ML models Additionally, “persistence” isn’t mentioned at all in the “Coming soon to Cloud Memorystore” section. I’m not trying to be a pedant, I just think it’s dangerous that it’s not made abundantly clear that there is no persistence.
russell_h 8y ago
This is a great looking product, thanks for following up here. Can you speak to what kind of durability you expect to achieve once persistence is in place? Is it reasonable to treat this as a durable datastore and simply have a disaster recovery plan in place? Or should applications be prepared to handle occasional minor data loss?

sitkack 8y ago

> 1) We are not using persistence at all in beta, this is something we are working towards Persistence is a key feature of Redis, it isn't just a fancy memcached. This severely limits the applicability of this offering.

jkaplowitz 8y ago
So does the beta label. :) Both will change in time, from what the PM said.
- dannyw 8y ago
  It’s like releasing a beta for DNS that doesn’t support IPv6 or CNAMES.
  - rkangel 8y ago
    Exactly. It will be still be useful to some people, it allows them to get something working end-to-end, and then iterate on it to provide the features for more people.
    - sitkack 8y ago
      Not providing persistence is setting people up to lose data. It is the wrong move.

hamandcheese 8y ago

> We are not using persistence at all in beta Maybe don’t advertise it as a “data store” then.

jkaplowitz 8y ago
Transient caches are still a useful type of data store for better performance... That said, they're noting it as a goal and a beta limitation, so they're not satisfied with pure transience either.
- deleted 8y ago
  [deleted]
- hamandcheese 8y ago
  That’s fine, but it should be made way more obvious what this is and what it isn’t. This goes against expectations.
  - antonvs 8y ago
    Its name is Cloud MemoryStore, not Cloud Diskstore. That should set expectations right there.
    - hamandcheese 8y ago
      They use the term “data store” multiple times, not to mention: > and features like persistence, replication and pub-sub. (Customer testimonial) > We have used Redis on everything from storing asynchronous task queues for tens of thousands of CPUs to a centralized persisted key-value pair store for the feature vectors output by our ML models Additionally, “persistence” isn’t mentioned at all in the “Coming soon to Cloud Memorystore” section. I’m not trying to be a pedant, I just think it’s dangerous that it’s not made abundantly clear that there is no persistence.

russell_h 8y ago

This is a great looking product, thanks for following up here. Can you speak to what kind of durability you expect to achieve once persistence is in place? Is it reasonable to treat this as a durable datastore and simply have a disaster recovery plan in place? Or should applications be prepared to handle occasional minor data loss?