After restarting pulse following upgrade to 5.8.0 all is looking normal in server.log until the following entry
2018-11-26 10:54:18.4097 Error Elastic "Template pulse-server update to Elastic Search failed: Unsuccessful low level call on PUT: /_template/pulse-server
Thereafter the following lines are repeated 1000s of times in the log
# Audit trail of this API call:
- [1] AllNodesDead: Took: 00:00:00
- [2] Resurrection: Node: http://localhost:9200/ Took: 00:00:00
- [3] PingFailure: Node: http://localhost:9200/ Exception: PipelineException Took: 00:00:02.0041203
# OriginalException: Elasticsearch.Net.ElasticsearchClientException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> Elasticsearch.Net.PipelineException: Failed to ping the specified node. ---> Elasticsearch.Net.PipelineException: An error occurred trying to read the response from the specified node.
at Elasticsearch.Net.RequestPipeline.Ping(Node node)
--- End of inner exception stack trace ---
at Elasticsearch.Net.RequestPipeline.Ping(Node node)
at Elasticsearch.Net.Transport`1.Ping(IRequestPipeline pipeline, Node node)
at Elasticsearch.Net.Transport`1.Request[TReturn](HttpMethod method, String path, PostData`1 data, IRequestParameters requestParameters)
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
# Audit exception in step 3 PingFailure:
Elasticsearch.Net.PipelineException: An error occurred trying to read the response from the specified node.
at Elasticsearch.Net.RequestPipeline.Ping(Node node)
# Request:
<Request stream not captured or already read to completion by serializer. Set DisableDirectStreaming() on ConnectionSettings to force it to be set on the response.>
# Response:
<Response stream not captured or already read to completion by serializer. Set DisableDirectStreaming() on ConnectionSettings to force it to be set on the response.>
"
Other than elasticsearch / kibana everythign in Pulse seems to be working fine, although it did take the application server an unusually long time to be available after the upgrade (around 10 minutes).
