# Watcher error after upgrade from 5.6.8 to 6.2.2

**URL:** <https://discuss.elastic.co/t/watcher-error-after-upgrade-from-5-6-8-to-6-2-2/125891>\
**Category:** Elasticsearch\
**Created:** [March 28, 2018, 8:59am UTC](https://discuss.elastic.co/t/watcher-error-after-upgrade-from-5-6-8-to-6-2-2/125891 "2018-03-28T08:59:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![massimo](https://avatars.discourse-cdn.com/v4/letter/m/7ba0ec/32.png) [@massimo](https://discuss.elastic.co/u/massimo)\
**Post date:** [March 28, 2018, 8:59am UTC](https://discuss.elastic.co/t/watcher-error-after-upgrade-from-5-6-8-to-6-2-2/125891/1 "2018-03-28T08:59:47Z")

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Hello,

after upgrading the stack from 5.6.8 to 6.2.2 the logs show:

```
[2018-03-28T10:56:21,684][DEBUG][o.e.a.s.TransportSearchAction] [elk02] All shards failed for phase: [query] org.elasticsearch.search.SearchContextException: no mapping found for `cluster_state.nodes_hash` in order to collapse on
...
[2018-03-28T10:57:21,735][ERROR][o.e.x.w.i.s.ExecutableSearchInput] [elk02] failed to execute [search] input for watch [rsrfREKwT8S2KuLjI1PRSA_elasticsearch_nodes], reason [all shards failed]

```

I did use the migration/reindex tools before upgrade.

Regards,  
M

---

<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:** [April 25, 2018, 9:00am UTC](https://discuss.elastic.co/t/watcher-error-after-upgrade-from-5-6-8-to-6-2-2/125891/2 "2018-04-25T09:00:00Z")

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