Couchbase Java Client

"Failed to access the view" error when querying a view with reduce

Details

  • Type: Bug Bug
  • Status: Resolved Resolved
  • Priority: Blocker Blocker
  • Resolution: Fixed
  • Affects Version/s: 1.1-dp4
  • Fix Version/s: None
  • Component/s: library
  • Security Level: Public
  • Labels:
    None

Description

Attempting to make a call to CouchbaseClient.query(view, query) with a view that has a reduce (even just "_count") results in the following exception when results are returned:

java.lang.RuntimeException: Failed to access the view
at com.couchbase.client.CouchbaseClient.query(CouchbaseClient.java:634)

Worth noting:
- If the query returns no results (ViewResponse.size() returns 0), you do not get the exception...
- If the reduce method is removed from the view, everything works fine. However, using query.setReduce(false) does not work.

Activity

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Michael Nitschinger added a comment -
fixed and pushed to master; will be available in dp5/beta.
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Michael Nitschinger added a comment - fixed and pushed to master; will be available in dp5/beta.
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Michael Nitschinger added a comment - - edited
After more investigation, this is really a shortcoming and should be handled in this changeset:

http://review.couchbase.org/#/c/22710/

It makes sure that reduce = true when nothing is set and the view contains a reduce function. The exception was misleading because it covered a JSON parsing bug underneath.
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Michael Nitschinger added a comment - - edited After more investigation, this is really a shortcoming and should be handled in this changeset: http://review.couchbase.org/#/c/22710/ It makes sure that reduce = true when nothing is set and the view contains a reduce function. The exception was misleading because it covered a JSON parsing bug underneath.
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Michael Nitschinger added a comment -
Please make sure to use setReduce(true) and .setReduce(false) explicitely on a view with a reduce function right now.

The following code works with setReduce(true) and false, but will throw the exception you mentioned when setReduce is not used at all:

    query = new Query();
    //query.setReduce(false);
    view = client.getView(DESIGN_DOC_W_REDUCE, VIEW_NAME_W_REDUCE);
    reduce = client.query(view, query);
    itr = reduce.iterator();
    while(itr.hasNext()) {
      ViewRow row = itr.next();
      System.out.println(row.getKey());
    }

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Michael Nitschinger added a comment - Please make sure to use setReduce(true) and .setReduce(false) explicitely on a view with a reduce function right now. The following code works with setReduce(true) and false, but will throw the exception you mentioned when setReduce is not used at all:     query = new Query();     //query.setReduce(false);     view = client.getView(DESIGN_DOC_W_REDUCE, VIEW_NAME_W_REDUCE);     reduce = client.query(view, query);     itr = reduce.iterator();     while(itr.hasNext()) {       ViewRow row = itr.next();       System.out.println(row.getKey());     }
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Michael Nitschinger added a comment -
Hi Chris,

thanks for the report. I'll investigate and let you know!

Thanks,
Michael
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Michael Nitschinger added a comment - Hi Chris, thanks for the report. I'll investigate and let you know! Thanks, Michael

People

  • Assignee:
    Michael Nitschinger
    Reporter:
    Chris Tashjian
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Dates

  • Created:
    Updated:
    Resolved: