"Minimum memory limit allowed is 4MB" 链码实例化失败

Question

在每个节点上成功安装链代码后，实例化链代码失败，因为 "Minimum memory limit allowed is 4MB" 错误。

在订购者上，它打印：

Error: Error endorsing chaincode: rpc error: code = Unknown desc = Error starting container: API error (400): {"message":"Minimum memory limit allowed is 4MB"}

然后，在对等节点上，它打印：

2018-07-10 08:02:35.893 UTC [dockercontroller] Start -> ERRO 610 start-could not recreate container <10.11.1.121-10.11.1.121-mycc-1.0>, because of API error (400): {"message":"Minimum memory limit allowed is 4MB"}
2018-07-10 08:02:35.893 UTC [container] unlockContainer -> DEBU 611 container lock deleted(10.11.1.121-10.11.1.121-mycc-1.0)
2018-07-10 08:02:35.893 UTC [chaincode] Launch -> ERRO 612 launchAndWaitForRegister failed Error starting container: API error (400): {"message":"Minimum memory limit allowed is 4MB"}
2018-07-10 08:02:35.893 UTC [endorser] callChaincode -> DEBU 613 Exit
2018-07-10 08:02:35.894 UTC [endorser] simulateProposal -> ERRO 614 failed to invoke chaincode name:"lscc"  on transaction c67380e075c9a178cd11b6570cf774c616249a5a1412bdc2f96ebecc3d7bbb7b, error: Error starting container: API error (400): {"message":"Minimum memory limit allowed is 4MB"}

我该如何处理这个错误？该消息的确切含义是什么？

Fabric版本为1.0-rc，本网络在嵌入式环境下测试，硬件资源有限

Answer 1

当运行 Hyperledger v0.6 在 Raspberry Pi 3 上时，我遇到了同样的问题。

您需要修改 peer/core.yaml 并将 Memory 值从 2147483648 更改为低于您的内存的值大小（在我的例子中，我只输入了 134217728，它小于系统的 972230656 B）：

-            Memory: 2147483648
+            Memory: 134217728

您可能还想更改 core/ledger/statemgmt/buckettree/data_key 的第 36 行。go:

-       bucketNumber := int(bucketHash)%conf.getNumBucketsAtLowestLevel() + 1
+       bucketNumber := int(bucketHash % uint32(conf.getNumBucketsAtLowestLevel()) + 1)

因为 bucketHash 是 uint32 而 int 在 Raspberry Pi（或任何其他 32 位系统）上是 32 位。因此，您可能会得到一个负数的 bucketNumber，它会产生这个致命错误：

panic: Invalid bucket number [-483217]. Bucket nuber at level [9] can be between 1 and [1000003]

进行这些更改后，重新编译对等点：

$ make peer

"Minimum memory limit allowed is 4MB" 链码实例化失败

"Minimum memory limit allowed is 4MB" failure during the chaincode instantiation

hyperledger

hyperledger-fabric