nifi move json data between hdfs directories

Deenag — Mon, 21 Oct 2019 22:28:39 GMT

Hi All,

I am moving data between hdfs directories to pick the latest updated flow file. The requirement is to move the merged json files. The code should verify on the source hdfs directories to pick the json files and process to the target along with the sub folders if the target directory doesn't have the directories available.

Source hdfs path:-

/data/json/incoming/year=1970/month=01/day=18/$flow-file

Target hdfs path:-

/data/json/final/$path/$flow-file

I am currently using listhdfs->updateattribute->movehdfs

In update attribute I have provided

property(filename): ${path}.substringAfterLast("/")

path: ${filename:substringBeforeLast('/')}

Movehdfs output directory has

Output Directory - /data/json/final/${path}

Could you please verify the flow and help to resolve the issue as I am unable to pull the files into target using movehdfs along with copying the sub-folders if it not already present.

Re: nifi move json data between hdfs directories

Deenag — Wed, 23 Oct 2019 14:51:15 GMT

This has to be achieved only with puthdfs and not movehdfs.

The following nifi flow worked and issue resolved.

listhdfs->updateattribute->puthdfs->deletehdfs

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nifi move json data between hdfs directories

Re: nifi move json data between hdfs directories