69 lines
3.0 KiB
Plaintext
69 lines
3.0 KiB
Plaintext
[float]
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[[breaking_70_settings_changes]]
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=== Settings changes
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[float]
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==== The default for `node.name` is now the hostname
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`node.name` now defaults to the hostname at the time when Elasticsearch
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is started. Previously the default node name was the first eight characters
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of the node id. It can still be configured explicitly in `elasticsearch.yml`.
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[float]
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==== Percolator
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* The deprecated `index.percolator.map_unmapped_fields_as_string` setting has been removed in favour of
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the `index.percolator.map_unmapped_fields_as_text` setting.
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[float]
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==== Index thread pool
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* Internally, single-document index/delete/update requests are executed as bulk
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requests with a single-document payload. This means that these requests are
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executed on the bulk thread pool. As such, the indexing thread pool is no
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longer needed and has been removed. As such, the settings
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`thread_pool.index.size` and `thread_pool.index.queue_size` have been removed.
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[float]
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[[write-thread-pool-fallback]]
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==== Write thread pool fallback
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* The bulk thread pool was replaced by the write thread pool in 6.3.0. However,
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for backwards compatibility reasons the name `bulk` was still usable as fallback
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settings `thread_pool.bulk.size` and `thread_pool.bulk.queue_size` for
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`thread_pool.write.size` and `thread_pool.write.queue_size`, respectively, and
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the system property `es.thread_pool.write.use_bulk_as_display_name` was
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available to keep the display output in APIs as `bulk` instead of `write`.
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These fallback settings and this system property have been removed.
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[float]
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[[remove-http-enabled]]
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==== Http enabled setting removed
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* The setting `http.enabled` previously allowed disabling binding to HTTP, only allowing
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use of the transport client. This setting has been removed, as the transport client
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will be removed in the future, thus requiring HTTP to always be enabled.
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[float]
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[[remove-http-pipelining-setting]]
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==== Http pipelining setting removed
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* The setting `http.pipelining` previously allowed disabling HTTP pipelining support.
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This setting has been removed, as disabling http pipelining support on the server
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provided little value. The setting `http.pipelining.max_events` can still be used to
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limit the number of pipelined requests in-flight.
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[float]
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==== Cross-cluster search settings renamed
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The cross-cluster search remote cluster connection infrastructure is also used
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in cross-cluster replication. This means that the setting names
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`search.remote.*` used for configuring cross-cluster search belie the fact that
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they also apply to other situations where a connection to a remote cluster as
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used. Therefore, these settings have been renamed from `search.remote.*` to
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`cluster.remote.*`. For backwards compatibility purposes, we will fallback to
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`search.remote.*` if `cluster.remote.*` is not set. For any such settings stored
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in the cluster state, or set on dynamic settings updates, we will automatically
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upgrade the setting from `search.remote.*` to `cluster.remote.*`. The fallback
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settings will be removed in 8.0.0.
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