Fabric区块链调用出现Bad newest block expected status 200 got 400异常原因

以你之姓@ 2022-05-22 09:34 34阅读 0赞

今天在进行Fabric区块链上进行交易提交时出现一个异常信息：

org.hyperledger.fabric.sdk.exception.TransactionException: Bad newest block expected status 200  got  400, Channel xxxxxx
        at org.hyperledger.fabric.sdk.Channel.seekBlock(Channel.java:1216)
        at org.hyperledger.fabric.sdk.Channel.getLatestBlock(Channel.java:1274)
        at org.hyperledger.fabric.sdk.Channel.getLastConfigIndex(Channel.java:1097)
        at org.hyperledger.fabric.sdk.Channel.getConfigurationBlock(Channel.java:1028)
        at org.hyperledger.fabric.sdk.Channel.parseConfigBlock(Channel.java:949)
        at org.hyperledger.fabric.sdk.Channel.initialize(Channel.java:676)
        at com.cmit.fabric.java.sdk.test.bean.ChaincodeManager.getChannel(ChaincodeManager.java:144)
        at com.cmit.fabric.java.sdk.test.bean.ChaincodeManager.getChannel(ChaincodeManager.java:90)
        at com.cmit.fabric.java.sdk.test.bean.ChaincodeManager.<init>(ChaincodeManager.java:69)
        at com.cmit.fabric.java.sdk.test.util.FabricManager.<init>(FabricManager.java:89)
        at com.cmit.fabric.java.sdk.test.util.FabricManager.obtain(FabricManager.java:42)
        at com.cmit.fabric.java.sdk.test.service.impl.SectionSDKServiceImpl.createSection(SectionSDKServiceImpl.java:69)
        ... 71 more

在查看了fabric-sdk-java代码后没有发现有什么问题（话说人家官方给提供的代码会有这么明显的问题吗。。。我也真是服了自己。。。）  
后来到orderer节点主机查看日志(docker logs -f xxxxxxxx，xxxxxxxx表示orderer节点名称)，发现一条WARN信息：

Rejecting deliver for 192.168.xxx.xx:xxxxxx due to envelope validation error: timestamp 2018-06-21 02:06:09.483 +0000 UTC is more than the 15m0s time window difference above/below server time 2018-06-21 01:50:59.056241689 +0000 UTC m=+145964.729785586. either the server and client clocks are out of sync or a relay attack has been attempted

感觉应该是本地主机时间和远程（orderer节点）主机时间差超过了15分钟，导致Fabric区块链对交易提交进行时间校验，最终交易失败。在调整本地主机时间后，再次运行程序，交易被成功提交上去，证实主机之间的时间差是会造成出现`org.hyperledger.fabric.sdk.exception.TransactionException: Bad newest block expected status 200 got 400`异常信息。  
特此记录问题，以备后用！