当 AppEngine 上的 ID 耗尽时，我会发生什么？
我永远不会创建足够的实体来耗尽 63 位地址空间，但假设我使用 allocateIdRange 来分配 id 9223372036854775807 （几乎是 2^63）。对于新的自动输入的实体来说，这种实体是否会被破坏？
我在测试应用程序中尝试了这一点。似乎自动 IDer 的某些分片可以继续生成有效的 id，但其他分片只是给出 DatastoreFailureException。成功率约为30%。它会上涨吗？
这实际上是一个严肃的问题，因为我天真地创建了一些相当大的 id。在达到这个限制之前，我还有几万亿个实体需要去，但我注意到实体之间的 ID 可以跳跃数百万，并且我以每年大约一百万的速度输入新实体。所以...我害怕达到这个极限。
I would never create enough entities to run out of 63-bit address space, but say I used allocateIdRange to allocate the id 9223372036854775807 (which is almost 2^63). Is that kind of entity just broken for new, automatically entered entities?
I tried this out in a test app . It seems that some shards of the auto-IDer can continue to produce valid ids, but other shards just give a DatastoreFailureException. The success rate is about 30%. Will it ever go up?
This is actually a serious question because, in my naivete, I created some rather huge ids. I still have several trillion entities to go before I come up to this limit, but I've noticed that the ids can jump by millions between entities, and I enter new entities at the rate of about a million per year. So... I'm scared of hitting this limit.
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通过测试应用程序，我使用
allocateIdRange保留了一堆非常高的 id。起初，我尝试建立新实体的尝试大约有一半成功了。现在，没有新实体可以添加空白 ID - 每次都会引发DatastoreFailureException。我认为这是因为密钥分配器实现不跟踪密钥中的间隙，而仅跟踪迄今为止给出的最高 id。我没有看到任何方法可以重置此类计数器，因此我认为唯一的解决方案是选择一个新的
Kind名称。教训：不要使用 2^63 附近的 ids！
With a test app I reserved a bunch of very high ids with
allocateIdRange. At first, about half of my attempts to put new entities succeeded. Now, no new entities can be put with a blank id - aDatastoreFailureExceptionis raised every time. I presume this is because the key allocator implementation does not keep track of gaps in keys, but only keeps track of the highest id given out so far.I don't see any way to reset the counter for this Kind, so I think the only solution would be to pick a new
Kindname.Lesson: don't use ids anywhere near 2^63!