Filters agg combined with query string or filters errors if no results

[jimmyjones2]

Using some syslog data.

Create new bar chart visualisation, add split chart agg, filters agg, query 1: syslog_program:dbus. Apply, see a bar. Now enter syslog_message:bound into query box, see zero bar, as expected, no messages match both.

Now add a sub aggregation, X-Axis, date histogram, and get an error in the javascript console:

TypeError: Cannot read property 'values' of undefined
    at http://localhost:5601/index.js?_b=4673:37266:22
    at Function.map (http://localhost:5601/index.js?_b=4673:34736:27)
    at lodash.ctor.(anonymous function) [as pluck] (http://localhost:5601/index.js?_b=4673:37152:31)
    at http://localhost:5601/index.js?_b=4673:105582:8
    at http://localhost:5601/index.js?_b=4673:105607:27
    at http://localhost:5601/index.js?_b=4673:105663:21
    at http://localhost:5601/index.js?_b=4673:105776:18
    at Object.<anonymous> (http://localhost:5601/index.js?_b=4673:108615:27)
    at Events.VisFactory.Vis.render (http://localhost:5601/index.js?_b=4673:110763:45)
    at Renderbot.VislibRenderbotFactory.VislibRenderbot.render (http://localhost:5601/index.js?_b=4673:140898:22)

Okay this is a bit of a weird example, but if I have a visualisation with a filters agg in a dashboard, and change the query string or do filtering that would cause there to be no results, it breaks in the same way.

[stormpython]

Just a note to myself as I am getting back into the swing of things.

This is caused because of a no data error. The issue is that a data object is being returned with an empty row, column, or series value.

Pull request #2300 should fix this issue.

[jimmyjones2]

@stormpython just tried on master, and still doesn't work, but get a different error this time:

"Error: object is undefined
property/<@http://localhost:5601/index.js?_b=5028:37405:9
map@http://localhost:5601/index.js?_b=5028:34875:1
mixin/</ctor.prototype[methodName]@http://localhost:5601/index.js?_b=5028:37291:26
FlattenDataObjectUtilService/<@http://localhost:5601/index.js?_b=5028:105971:14
UniqueXValuesUtilService/<@http://localhost:5601/index.js?_b=5028:105999:27
OrderedXKeysUtilService/<@http://localhost:5601/index.js?_b=5028:106062:21
ZeroInjectionUtilService/<@http://localhost:5601/index.js?_b=5028:106175:18
ColumnHandler/<@http://localhost:5601/index.js?_b=5028:109050:27
VisFactory/Vis.prototype.render@http://localhost:5601/index.js?_b=5028:111234:22
VislibRenderbotFactory/VislibRenderbot.prototype.render@http://localhost:5601/index.js?_b=5028:144211:7
.link/<@http://localhost:5601/index.js?_b=5028:94853:11
register/<@http://localhost:5601/index.js?_b=5028:94802:15
$RootScopeProvider/this.$get</Scope.prototype.$digest@http://localhost:5601/index.js?_b=5028:21856:23
$RootScopeProvider/this.$get</Scope.prototype.$apply@http://localhost:5601/index.js?_b=5028:22121:13
done@http://localhost:5601/index.js?_b=5028:17656:34
completeRequest@http://localhost:5601/index.js?_b=5028:17870:7
createHttpBackend/</xhr.onreadystatechange@http://localhost:5601/index.js?_b=5028:17809:1
"

[w33ble]

As mentioned in #2572, I'm still getting the same error as when the origin issue was filed.

• Create an aggregation with a filter agg
• In the query bar, enter a query that causes the filter agg to match nothing

• Now, add X-Axis with date histogram and apply

[stormpython]

@w33ble digging into this issue, I get a strange result when I look at the data.

There is a data object that consists of data.rows, which is fine. data.rows is an Array that instead of containing a object with a series array, contains another rows array.

Is this expected for filter aggs?

[w33ble]

Yes. The problem is the response from ES - the bucket is always defined, since we've told it what the bucket is (the filter agg). So, that bucket comes back, but since the bucket has no data, the next bucket has nothing in it.