Hbase REST调用 - 获取垃圾字符“ \ x0A“ [英] Hbase REST call - getting junk characters " \x0A "

问题描述

我试图使用HBase REST API调用将值插入到Hbase表中。下面是我使用的curl命令。

I'm trying to insert values into a Hbase table using the HBase REST API call.. Below is the curl command i'm using..

curl -v -XPUT 'http://localhost:8080/emp/1/pers:name' -H "Accept: application/json" -H "Content-Type: application/json" --data '{ "Row": [ { "Cell": [ { "column": "cGVyczpuYW1lCg==", "$": "TXlOYW1lCg==" } ], "key": "MQo=" } ] }'

呼叫工作正常，我得到一个HTTP / 1.1 200 OK Hbase表，而不是更新行1中的值，调用创建一个新行1 \x0A，并插入具有相同垃圾字符的新值。

The call works fine and I get a "HTTP/1.1 200 OK" .. But when i see the Hbase table, instead of updating the value in Row "1", the call creates a new row "1\x0A" and inserts the new value with the same junk characters..

1\x0A    column=pers:name\x0A, timestamp=1437596697507, value=MyName\x0A

任何人看到这样的东西？提前感谢。

Anyone seen something like this? Thanks in advance..

推荐答案

好的，我排序了。
\x0A是转义的十六进制Line Feed 。相当于\\\
..
当我们使用base64编码时，需要将\\\
转义字符考虑在内。因此，当我们对rowkey，column和value进行base64编码时，我们需要传递一个-n。 。

Ok i sorted this out.. \x0A is the escaped hexadecimal Line Feed. The equivalent of \n.. When we base64 encode, it takes the \n escape character into account.. so we need to pass a " -n " when we base64 encode the rowkey, column and value..

例如：

echo -n MyName | base64
TXlOYW1l
echo MyName | base64
TXlOYW1lCg==

两者之间有区别..我的问题..

There is a difference between the two.. and thats what caused my problem..

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