Headache with RestHighLevelClient and bulkprocessor

Derrick · November 1, 2017, 6:12pm

BulkProcessor.Builder builder = BulkProcessor.builder(client::bulkAsync, new BulkProcessorListener());

this line is complaining

The target type of this expression must be a functional interface

the error is this part: builder(client::bulkAsync,

any idea? please help

import org.elasticsearch.client.RestHighLevelClient;
RestHighLevelClient client;

environment: java 8, eclipse

dadoonet · November 1, 2017, 6:25pm

Please format your code using </> icon as explained in this guide. It will make your post more readable.

Or use markdown style like:

```
CODE
```

I don't see the full code. But anyway here is an example:

github.com

dadoonet/fscrawler/blob/master/src/main/java/fr/pilato/elasticsearch/crawler/fs/client/ElasticsearchClientManager.java#L104-L115


    threadPool = new ThreadPool(Settings.builder().put(Node.NODE_NAME_SETTING.getKey(), "high-level-client").build());
    bulkProcessorDoc = new BulkProcessor.Builder(client::bulkAsync, new DebugListener(logger), threadPool)
            .setBulkActions(settings.getElasticsearch().getBulkSize())
            .setFlushInterval(TimeValue.timeValueMillis(settings.getElasticsearch().getFlushInterval().millis()))
            // TODO fix when elasticsearch will support global pipelines
//                .setPipeline(settings.getElasticsearch().getPipeline())
            .build();
    bulkProcessorFolder = new BulkProcessor.Builder(client::bulkAsync, new DebugListener(logger), threadPool)
            .setBulkActions(settings.getElasticsearch().getBulkSize())
            .setFlushInterval(TimeValue.timeValueMillis(settings.getElasticsearch().getFlushInterval().millis()))
            .build();
}

gringogordo · November 13, 2017, 4:17pm

Hi,

probably not much help but I had the same error today using 5.6.3 (both low and high level). I switched to 6.0.0-rc2 and the error went away. I assume it works in 5.6.3 but it doesn't seem to want a HighLevelRestClient object but instead wants a Client. I don't pretend to understand this as I thought the Client was associated more with previous versions. Anyway I switched to 6.0.0-rc2 and it builds in line with dadoonets answer above. I can't quite understand what is needed in the Settings object though so i'm about to ask a similar question (hence finding this one)

system · December 11, 2017, 4:17pm

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