在 hbase shell 中执行任何命令时,我在 hbase shell 中收到以下错误“ERROR: KeeperErrorCode = NoNode for /hbase/master”。
启动HBASE:
HOSTCHND:hbase-2.0.0 gvm$ ./bin/start-hbase.sh
localhost: running zookeeper, logging to /usr/local/Cellar/hbase-2.0.0/bin/../logs/hbase-gvm-zookeeper-HOSTCHND.local.out
running master, logging to /usr/local/Cellar/hbase-2.0.0/logs/hbase-gvm-master-HOSTCHND.local.out
: running regionserver, logging to /usr/local/Cellar/hbase-2.0.0/logs/hbase-gvm-regionserver-HOSTCHND.local.out
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在 HBASE SHELL 中检查状态时:
hbase(main):001:0> status
ERROR: KeeperErrorCode = NoNode for /hbase/master
Show cluster status. Can be 'summary', 'simple', 'detailed', or 'replication'. The
default is 'summary'. Examples:
hbase> status
hbase> status 'simple'
hbase> status 'summary'
hbase> status 'detailed'
hbase> status 'replication'
hbase> status 'replication', 'source'
hbase> status …Run Code Online (Sandbox Code Playgroud) 我想将Web服务的JSON结果保存到核心数据,以下是JSON解析的代码。
\n\nif let jsonResult = try JSONSerialization.jsonObject(with: JSONData!, options: [.mutableContainers]) as? [String: AnyObject]\nRun Code Online (Sandbox Code Playgroud)\n\n如果我打印 jsonResult,以下是输出
\n\n["Code": 00, "Desc": success, "iinData": <__NSArrayM 0x1c02531a0>\n{\n name = \xe2\x80\x9cAAA\xe2\x80\x9d;\n iin = 123456;\n isOn = 0;\n},\n{\n name = "Allahabad Bank";\n iin = 608112;\n isOn = 0;\n},\n)\nRun Code Online (Sandbox Code Playgroud)\n\n我可以将Code、Desc插入 Entity1 中,但如何将 innData 插入 Entity2 中。
\n\n\n\n以下是将 JSON 结果插入核心数据的代码
\n\nfunc createEntity1From(dictionary: [String: AnyObject]) -> NSManagedObject? {\n let context = CoreDataStack.sharedInstance.persistentContainer.viewContext\n if let Entity1 …Run Code Online (Sandbox Code Playgroud)