# Regression in 0.20.0.Beta1-SNAPSHOT with Java API when using a single shard?
**URL:** https://discuss.elastic.co/t/regression-in-0-20-0-beta1-snapshot-with-java-api-when-using-a-single-shard/9175
**Category:** Elasticsearch
**Created:** [September 27, 2012, 8:21pm UTC](https://discuss.elastic.co/t/regression-in-0-20-0-beta1-snapshot-with-java-api-when-using-a-single-shard/9175 "2012-09-27T20:21:00Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@andreasch](https://discuss.elastic.co/u/andreasch)
#### Post date: [September 27, 2012, 8:21pm UTC](https://discuss.elastic.co/t/regression-in-0-20-0-beta1-snapshot-with-java-api-when-using-a-single-shard/9175/1 "2012-09-27T20:21:00Z")
I have the following code that works with no errors on 0.19.9.0:
Client client = nodeBuilder().local(true).data(true).node().client();
IndicesAdminClient indicesClient = client.admin().indices();
boolean exists = indicesClient.prepareExists("single-shard").execute()
.actionGet().exists();
if (exists) {
indicesClient.prepareDelete("single-shard").execute().actionGet();
}
indicesClient
.prepareCreate("single-shard")
.setSettings(
ImmutableSettings.settingsBuilder()
.put("number\_of\_shards", 1)
.put("number\_of\_replicas", 0)).execute()
.actionGet();
XContentBuilder indexMapping = jsonBuilder().startObject()
.startObject("orderType").startObject("\_parent")
.field("type", "contactType").endObject().endObject()
.endObject();
indicesClient.preparePutMapping("single-shard").setType("orderType")
.setSource(indexMapping).execute().actionGet();
indexMapping = jsonBuilder().startObject().startObject("productType")
.startObject("\_parent").field("type", "orderType").endObject()
.endObject().endObject();
indicesClient.preparePutMapping("single-shard").setType("productType")
.setSource(indexMapping).execute().actionGet();
XContentBuilder jsonBuilder = jsonBuilder().startObject()
.field("fieldName", "fieldValue").endObject();
client.prepareIndex("single-shard", "contactType", "1")
.setRefresh(true).setSource(jsonBuilder).execute().actionGet();
HasChildFilterBuilder hasChildFilterBuilder = hasChildFilter(
"productType", matchAllQuery());
FilteredQueryBuilder filteredQuery = filteredQuery(matchAllQuery(),
hasChildFilterBuilder);
client.prepareSearch("single-shard").setQuery(filteredQuery).execute()
.actionGet();
However, on 0.20.0.Beta1-SNAPSHOT I get the following error:Exception in
thread "main"
org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to
execute phase [query\_fetch], total failure; shardFailures
{[1][single-shard][0]: QueryPhaseExecutionException[[single-shard][0]:
query[ConstantScore(NotDeleted(child\_filter[productType/orderType](filtered(ConstantScore(NotDeleted(_:_)))-\>cache(\_type:productType))))],from[0],size[10]:
Query Failed [Failed to execute main query]]; nested: NullPointerException;
}
at
org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.onFirstPhaseResult(TransportSearchTypeAction.java:260)
at
org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$3.onFailure(TransportSearchTypeAction.java:213)
at
org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteFetch(SearchServiceTransportAction.java:243)
at
org.elasticsearch.action.search.type.TransportSearchQueryAndFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryAndFetchAction.java:75)
at
org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:205)
at
org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:192)
at
org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$2.run(TransportSearchTypeAction.java:178)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Also, the error goes away if I increase the number of shards used to more
than 1.
--
---
### Author:  [@mvg](https://discuss.elastic.co/u/mvg)
#### Post date: [September 28, 2012, 2:24pm UTC](https://discuss.elastic.co/t/regression-in-0-20-0-beta1-snapshot-with-java-api-when-using-a-single-shard/9175/2 "2012-09-28T14:24:54Z")
Hi Andreas,
This is a bug. I've opened an issue for it:
>
Martijn
On 27 September 2012 22:21, Andreas Christoforides
[andreas.christoforides@gmail.com](mailto:andreas.christoforides@gmail.com) wrote:
> I have the following code that works with no errors on 0.19.9.0:
>
> Client client = nodeBuilder().local(true).data(true).node().client();
> IndicesAdminClient indicesClient = client.admin().indices();
>
> boolean exists = indicesClient.prepareExists("single-shard").execute()
> .actionGet().exists();
>
> if (exists) {
> indicesClient.prepareDelete("single-shard").execute().actionGet();
> }
>
> indicesClient
> .prepareCreate("single-shard")
> .setSettings(
> ImmutableSettings.settingsBuilder()
> .put("number\_of\_shards", 1)
> .put("number\_of\_replicas", 0)).execute()
> .actionGet();
>
> XContentBuilder indexMapping = jsonBuilder().startObject()
> .startObject("orderType").startObject("\_parent")
> .field("type", "contactType").endObject().endObject()
> .endObject();
>
> indicesClient.preparePutMapping("single-shard").setType("orderType")
> .setSource(indexMapping).execute().actionGet();
>
> indexMapping = jsonBuilder().startObject().startObject("productType")
> .startObject("\_parent").field("type", "orderType").endObject()
> .endObject().endObject();
>
> indicesClient.preparePutMapping("single-shard").setType("productType")
> .setSource(indexMapping).execute().actionGet();
>
> XContentBuilder jsonBuilder = jsonBuilder().startObject()
> .field("fieldName", "fieldValue").endObject();
>
> client.prepareIndex("single-shard", "contactType", "1")
> .setRefresh(true).setSource(jsonBuilder).execute().actionGet();
>
> HasChildFilterBuilder hasChildFilterBuilder = hasChildFilter(
> "productType", matchAllQuery());
>
> FilteredQueryBuilder filteredQuery = filteredQuery(matchAllQuery(),
> hasChildFilterBuilder);
>
> client.prepareSearch("single-shard").setQuery(filteredQuery).execute()
> .actionGet();
>
> However, on 0.20.0.Beta1-SNAPSHOT I get the following error:Exception in
> thread "main" org.elasticsearch.action.search.SearchPhaseExecutionException:
> Failed to execute phase [query\_fetch], total failure; shardFailures
> {[1][single-shard][0]: QueryPhaseExecutionException[[single-shard][0]:
> query[ConstantScore(NotDeleted(child\_filterproductType/orderType))],from[0],size[10]:
> Query Failed [Failed to execute main query]]; nested: NullPointerException;
> }
> at
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.onFirstPhaseResult(TransportSearchTypeAction.java:260)
> at
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$3.onFailure(TransportSearchTypeAction.java:213)
> at
> org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteFetch(SearchServiceTransportAction.java:243)
> at
> org.elasticsearch.action.search.type.TransportSearchQueryAndFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryAndFetchAction.java:75)
> at
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:205)
> at
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:192)
> at
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$2.run(TransportSearchTypeAction.java:178)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
>
> Also, the error goes away if I increase the number of shards used to more
> than 1.
>
> --
--
Met vriendelijke groet,
Martijn van Groningen
--
---
### Author:  [@mvg](https://discuss.elastic.co/u/mvg)
#### Post date: [September 28, 2012, 3:14pm UTC](https://discuss.elastic.co/t/regression-in-0-20-0-beta1-snapshot-with-java-api-when-using-a-single-shard/9175/3 "2012-09-28T15:14:16Z")
Hi Andreas,
I pushed the bug fix. The code you attached works now on my machine.
Can you also verify this?
Martijn
On 28 September 2012 16:24, Martijn v Groningen
[martijn.v.groningen@gmail.com](mailto:martijn.v.groningen@gmail.com) wrote:
> Hi Andreas,
>
> This is a bug. I've opened an issue for it:
> [has\_child / has\_parent filters can throw NPE when either child or parent documents aren't indexed yet · Issue #2297 · elastic/elasticsearch · GitHub](https://github.com/elasticsearch/elasticsearch/issues/2297)
>
> Martijn
>
> On 27 September 2012 22:21, Andreas Christoforides
> [andreas.christoforides@gmail.com](mailto:andreas.christoforides@gmail.com) wrote:
>
> > I have the following code that works with no errors on 0.19.9.0:
> >
> > Client client = nodeBuilder().local(true).data(true).node().client();
> > IndicesAdminClient indicesClient = client.admin().indices();
> >
> > boolean exists = indicesClient.prepareExists("single-shard").execute()
> > .actionGet().exists();
> >
> > if (exists) {
> > indicesClient.prepareDelete("single-shard").execute().actionGet();
> > }
> >
> > indicesClient
> > .prepareCreate("single-shard")
> > .setSettings(
> > ImmutableSettings.settingsBuilder()
> > .put("number\_of\_shards", 1)
> > .put("number\_of\_replicas", 0)).execute()
> > .actionGet();
> >
> > XContentBuilder indexMapping = jsonBuilder().startObject()
> > .startObject("orderType").startObject("\_parent")
> > .field("type", "contactType").endObject().endObject()
> > .endObject();
> >
> > indicesClient.preparePutMapping("single-shard").setType("orderType")
> > .setSource(indexMapping).execute().actionGet();
> >
> > indexMapping = jsonBuilder().startObject().startObject("productType")
> > .startObject("\_parent").field("type", "orderType").endObject()
> > .endObject().endObject();
> >
> > indicesClient.preparePutMapping("single-shard").setType("productType")
> > .setSource(indexMapping).execute().actionGet();
> >
> > XContentBuilder jsonBuilder = jsonBuilder().startObject()
> > .field("fieldName", "fieldValue").endObject();
> >
> > client.prepareIndex("single-shard", "contactType", "1")
> > .setRefresh(true).setSource(jsonBuilder).execute().actionGet();
> >
> > HasChildFilterBuilder hasChildFilterBuilder = hasChildFilter(
> > "productType", matchAllQuery());
> >
> > FilteredQueryBuilder filteredQuery = filteredQuery(matchAllQuery(),
> > hasChildFilterBuilder);
> >
> > client.prepareSearch("single-shard").setQuery(filteredQuery).execute()
> > .actionGet();
> >
> > However, on 0.20.0.Beta1-SNAPSHOT I get the following error:Exception in
> > thread "main" org.elasticsearch.action.search.SearchPhaseExecutionException:
> > Failed to execute phase [query\_fetch], total failure; shardFailures
> > {[1][single-shard][0]: QueryPhaseExecutionException[[single-shard][0]:
> > query[ConstantScore(NotDeleted(child\_filterproductType/orderType))],from[0],size[10]:
> > Query Failed [Failed to execute main query]]; nested: NullPointerException;
> > }
> > at
> > org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.onFirstPhaseResult(TransportSearchTypeAction.java:260)
> > at
> > org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$3.onFailure(TransportSearchTypeAction.java:213)
> > at
> > org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteFetch(SearchServiceTransportAction.java:243)
> > at
> > org.elasticsearch.action.search.type.TransportSearchQueryAndFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryAndFetchAction.java:75)
> > at
> > org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:205)
> > at
> > org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:192)
> > at
> > org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$2.run(TransportSearchTypeAction.java:178)
> > at
> > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> > at
> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> > at java.lang.Thread.run(Thread.java:662)
> >
> > Also, the error goes away if I increase the number of shards used to more
> > than 1.
> >
> > --
>
> --
> Met vriendelijke groet,
>
> Martijn van Groningen
--
Met vriendelijke groet,
Martijn van Groningen
--
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:10am UTC](https://discuss.elastic.co/t/regression-in-0-20-0-beta1-snapshot-with-java-api-when-using-a-single-shard/9175/4 "2017-07-06T03:10:51Z")