question Re: Atlas Taxonomy subterms are not displayed in Support Questions

Atlas Taxonomy subterms are not displayed

poorvi_sachar — Fri, 24 Feb 2017 12:04:21 GMT

I created a subterm in Atals Web UI by selecting "Create Subterm" option under Catalogs. The message clearly displays subterm created. I can even retieve all the subterms using the api

http://host:port/api/atlas/v1/taxonomies/Catalog/terms

But they dont appear under Catalog dropdown menu.

On debugging I found Atlas to be calling an API

http://host:port/api/atlas/v1/taxonomies/Catalog/terms?hierarchy/path:.&_=1487799123750

which returns empty json

I changed this API to

http://host:port/api/atlas/v1/taxonomies/Catalog/terms?hierarchy/path:/

and this worked in my java application.

So I changed the URL building javascript TreeLayoutTerm.js to replace hierarchy/path:. -> hierarchy/path:/

Now the request that goes through web ui is something like

http://host:port/api/atlas/v1/taxonomies/Catalog/terms?hierarchy/path:/&_=1487799123750

But still it is fetching empty JSON.

Is this a bug of wrong path being sent to server or is there something I am missing like restart of depending services etc.

Any help would be highly appreciable

Re: Atlas Taxonomy subterms are not displayed

nixonrodrigues — Tue, 28 Feb 2017 18:29:35 GMT

@Poorvi Sachar

What is HDP version or Apache Atlas release version you are using ?

Re: Atlas Taxonomy subterms are not displayed

poorvi_sachar — Tue, 28 Feb 2017 19:27:00 GMT

@Nixon Rodrigues

HDP Version: 2.5.3.0-37

Atlas Version: 0.7.0

Re: Atlas Taxonomy subterms are not displayed

nixonrodrigues — Tue, 28 Feb 2017 20:14:26 GMT

treelayoutviewjs.txt@Poorvi Sachar,

Can you make this small change in fetchCollection: function(url, isParent) in Atlas server

webapp/atlas/js/views/business_catalog/TreeLayoutView.js at line 265 and try.

+                    this.childCollection.fetch({ reset: true,cache:true  });

Nixon

Re: Atlas Taxonomy subterms are not displayed

poorvi_sachar — Tue, 28 Feb 2017 20:50:33 GMT

@Nixon Rodrigues

Made the required changes but not able to see the taxonomy Subterms on UI.

Re: Atlas Taxonomy subterms are not displayed

poorvi_sachar — Tue, 28 Feb 2017 22:45:06 GMT

@Nixon Rodrigues

Thanks this worked...earlier was not able to test the issue properly as was js was cached in the browser and was not fetching the updated js file..

Re: Atlas Taxonomy subterms are not displayed

nixonrodrigues — Wed, 01 Mar 2017 20:15:10 GMT

@Poorvi Sachar

If my answer has resolved the issue, can you close this thread by accepting my Answers.

Re: Atlas Taxonomy subterms are not displayed

poorvi_sachar — Wed, 01 Mar 2017 20:20:17 GMT

@Nixon Rodrigues

Could you please explain it a bit as when I checked the TreeLayoutView.js file in hdp2.5 sandbox, the line(which you suggested me to change) in fetchCollection: function(url, isParent) is:

this.childCollection.fetch({ reset:true }); similar to what I have in my cluster but in case of hdp2.5 sandbox taxonomy terms are displayed without making the change but for the cluster the terms were not being shown earlier on UI but after the change suggested by you it worked.

Re: Atlas Taxonomy subterms are not displayed

nixonrodrigues — Fri, 03 Mar 2017 17:54:04 GMT

@Poorvi Sachar, can you provide version of you both the hdp (meaning working without fix and with fix) ?

Re: Atlas Taxonomy subterms are not displayed

poorvi_sachar — Fri, 03 Mar 2017 18:30:24 GMT

@Nixon Rodrigues

hdp version for the sandbox working without the fix: 2.5.0.0-1245, atlas version: 0.7.0.2.5

hdp version for the cluster working with the fix: 2.5.3.0-37, atlas version: 0.7.0

Re: Atlas Taxonomy subterms are not displayed

nixonrodrigues — Sat, 04 Mar 2017 02:55:58 GMT

@Poorvi Sachar

In HDP 2.5.0.0-1245, atlas version: 0.7.0.2.5 there were some IE issue which got fixed. to avoid caching issue &_=1487799123750 timestamp was appended to api url, but this introduced a regression in taxonomy.

And this bug is fixed in subsequent maint HDP releases, i provided you same fix for 2.5.3.0-37, atlas version: 0.7.0

Hope this clear the doubt.

Nixon