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Posted to dev@nutch.apache.org by Ahmet Emre Aladağ <em...@agmlab.com> on 2013/08/14 22:23:47 UTC

Reading additional metadata field: mtdt:_hr_

Hi,


I added additional mtdt:_hr_ records in HBase holding scores externally.

To get the score stored in mtdt:_hr_, 
In Nutch 2.1 IndexUtil, I'd like to use:

HostDb hostDb = new HostDb(conf);
Host host = hostDb.getByHostName("http://www.google.com");
host.getFromMetaData(new Utf8("_hr_"));

But it returns null although these records exist in the table. Metadata holds only [f, p] keys, not _hr_.

Should I specify this additional metadata key (qualifier) somewhere?

Thanks,

Re: Reading additional metadata field: mtdt:_hr_

Posted by Ahmet Emre Aladağ <em...@agmlab.com>.

It's my bad,

I discovered that manually entered keys had extra http at the end, so 
Nutch wasn't able to see those as host keys and skipping them.

On 08/14/2013 11:23 PM, Ahmet Emre Aladağ wrote:
> Hi,
>
>
> I added additional mtdt:_hr_ records in HBase holding scores externally.
>
> To get the score stored in mtdt:_hr_,
> In Nutch 2.1 IndexUtil, I'd like to use:
>
> HostDb hostDb = new HostDb(conf);
> Host host = hostDb.getByHostName("http://www.google.com");
> host.getFromMetaData(new Utf8("_hr_"));
>
> But it returns null although these records exist in the table. Metadata holds only [f, p] keys, not _hr_.
>
> Should I specify this additional metadata key (qualifier) somewhere?
>
> Thanks,
>
>