# How to use the sniffer with Java High Rest Level

**URL:** <https://discuss.elastic.co/t/how-to-use-the-sniffer-with-java-high-rest-level/161783>\
**Category:** Elasticsearch\
**Created:** [December 21, 2018, 4:10am UTC](https://discuss.elastic.co/t/how-to-use-the-sniffer-with-java-high-rest-level/161783 "2018-12-21T04:10:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AuroraLove](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/auroralove/32/39078_2.png) [@AuroraLove](https://discuss.elastic.co/u/AuroraLove)\
**Post date:** [December 21, 2018, 4:10am UTC](https://discuss.elastic.co/t/how-to-use-the-sniffer-with-java-high-rest-level/161783/1 "2018-12-21T04:10:42Z")

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hi,everyone!  
I want to use the sniffer in 6.5.1 version,but I couldn't find the API to operate High Rest Level. My code is following:

```
    SniffOnFailureListener sniffOnFailureListener = new SniffOnFailureListener();
    Sniffer sniffer = Sniffer.builder(builder.build())
            .setSniffAfterFailureDelayMillis(30000)
            .build();
    sniffOnFailureListener.setSniffer(sniffer);
    builder = RestClient.builder(httpHost)
            .setFailureListener(sniffOnFailureListener);
    if (uniqueConnectTimeConfig) {
        setConnectTimeOutConfig();
    }
    if (uniqueConnectNumConfig) {
        setMutiConnectConfig();
    }
    client = new RestHighLevelClient(builder);
```

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 18, 2019, 4:10am UTC](https://discuss.elastic.co/t/how-to-use-the-sniffer-with-java-high-rest-level/161783/2 "2019-01-18T04:10:52Z")

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