[float] [[breaking_70_settings_changes]] === Settings changes [float] ==== The default for `node.name` is now the hostname `node.name` now defaults to the hostname at the time when Elasticsearch is started. Previously the default node name was the first eight characters of the node id. It can still be configured explicitly in `elasticsearch.yml`. [float] ==== Percolator * The deprecated `index.percolator.map_unmapped_fields_as_string` setting has been removed in favour of the `index.percolator.map_unmapped_fields_as_text` setting. [float] ==== Index thread pool * Internally, single-document index/delete/update requests are executed as bulk requests with a single-document payload. This means that these requests are executed on the bulk thread pool. As such, the indexing thread pool is no longer needed and has been removed. As such, the settings `thread_pool.index.size` and `thread_pool.index.queue_size` have been removed. [float] [[write-thread-pool-fallback]] ==== Write thread pool fallback * The bulk thread pool was replaced by the write thread pool in 6.3.0. However, for backwards compatibility reasons the name `bulk` was still usable as fallback settings `thread_pool.bulk.size` and `thread_pool.bulk.queue_size` for `thread_pool.write.size` and `thread_pool.write.queue_size`, respectively, and the system property `es.thread_pool.write.use_bulk_as_display_name` was available to keep the display output in APIs as `bulk` instead of `write`. These fallback settings and this system property have been removed. [float] ==== Disabling memory-mapping * The setting `node.store.allow_mmapfs` has been renamed to `node.store.allow_mmap`. [float] [[remove-http-enabled]] ==== Http enabled setting removed * The setting `http.enabled` previously allowed disabling binding to HTTP, only allowing use of the transport client. This setting has been removed, as the transport client will be removed in the future, thus requiring HTTP to always be enabled. [float] [[remove-http-pipelining-setting]] ==== Http pipelining setting removed * The setting `http.pipelining` previously allowed disabling HTTP pipelining support. This setting has been removed, as disabling http pipelining support on the server provided little value. The setting `http.pipelining.max_events` can still be used to limit the number of pipelined requests in-flight. [float] ==== Cross-cluster search settings renamed The cross-cluster search remote cluster connection infrastructure is also used in cross-cluster replication. This means that the setting names `search.remote.*` used for configuring cross-cluster search belie the fact that they also apply to other situations where a connection to a remote cluster as used. Therefore, these settings have been renamed from `search.remote.*` to `cluster.remote.*`. For backwards compatibility purposes, we will fallback to `search.remote.*` if `cluster.remote.*` is not set. For any such settings stored in the cluster state, or set on dynamic settings updates, we will automatically upgrade the setting from `search.remote.*` to `cluster.remote.*`. The fallback settings will be removed in 8.0.0. [float] [[audit-logfile-local-node-info]] ==== Audit logfile local node info The following settings have been removed: - `xpack.security.audit.logfile.prefix.emit_node_host_address`, instead use `xpack.security.audit.logfile.emit_node_host_address` - `xpack.security.audit.logfile.prefix.emit_node_host_name`, instead use `xpack.security.audit.logfile.emit_node_host_name` - `xpack.security.audit.logfile.prefix.emit_node_name`, instead use `xpack.security.audit.logfile.emit_node_name` The new settings have the same meaning as the removed ones, but the `prefix` name component is no longer meaningful as logfile audit entries are structured JSON documents and are not prefixed by anything. Moreover, `xpack.security.audit.logfile.emit_node_name` has changed its default from `true` to `false`. All other settings mentioned before, have kept their default value of `false`. [float] [[include-realm-type-in-setting]] ==== Security realms settings The settings for all security realms must now include the realm type as part of the setting name, and the explicit `type` setting has been removed. A realm that was previous configured as: [source,yaml] -------------------------------------------------- xpack.security.authc.realms: ldap1: type: ldap order: 1 url: "ldaps://ldap.example.com/" -------------------------------------------------- Must be migrated to: [source,yaml] -------------------------------------------------- xpack.security.authc.realms: ldap.ldap1: order: 1 url: "ldaps://ldap.example.com/" -------------------------------------------------- Any realm specific secure settings that have been stored in the elasticsearch keystore (such as ldap bind passwords, or passwords for ssl keys) must be updated in a similar way. [float] [[tls-setting-fallback]] ==== TLS/SSL settings The default TLS/SSL settings, which were prefixed by `xpack.ssl`, have been removed. The removal of these default settings also removes the ability for a component to fallback to a default configuration when using TLS. Each component (realm, transport, http, http client, etc) must now be configured with their own settings for TLS if it is being used. [float] [[watcher-notifications-account-settings]] ==== Watcher notifications account settings The following settings have been removed in favor of the secure variants. The <> have to be defined inside each cluster node's keystore, i.e., they are not to be specified via the cluster settings API. - `xpack.notification.email.account..smtp.password`, instead use `xpack.notification.email.account..smtp.secure_password` - `xpack.notification.hipchat.account..auth_token`, instead use `xpack.notification.hipchat.account..secure_auth_token` - `xpack.notification.jira.account..url`, instead use `xpack.notification.jira.account..secure_url` - `xpack.notification.jira.account..user`, instead use `xpack.notification.jira.account..secure_user` - `xpack.notification.jira.account..password`, instead use `xpack.notification.jira.account..secure_password` - `xpack.notification.pagerduty.account..service_api_key`, instead use `xpack.notification.pagerduty.account..secure_service_api_key` - `xpack.notification.slack.account..url`, instead use `xpack.notification.slack.account..secure_url`