Node roles are now serialized as well, they are not part of the node attributes anymore. DiscoveryNodeService takes care of dividing settings into attributes and roles. DiscoveryNode always requires to pass in attributes and roles separately.
discovery.zen.minimum_master_nodes is the single most important setting to set on a production cluster. We have no way of supplying a good default so it must be set by the user. Binding a node to a public IP (as opposed to the default local host) is a good enough indication that a node will be part of a production cluster cluster and thus it's a good tradeoff to enforce the settings. Note that nothing prevent users from setting it to 1 in a single node cluster.
Closes#17288
Primary terms is a way to make sure that operations replicated from stale primary are rejected by shards following a newly elected primary.
Original PRs adding this to the seq# feature branch #14062 , #14651 . Unlike those PR, here we take a different approach (based on newer code in master) where the primary terms are stored in the meta data only (and not in `ShardRouting` objects).
Relates to #17038Closes#17044
If a Writeable.Reader returns null it is always a bug, probably one that
will cause corruption in the StreamInput it was trying to read from. This
commit adds a check that attempts to catch these errors quickly including
the name of the reader.
We currently have a `discovery.zen.master_election.filter_client` setting that control whether their ping responses are ignored for master election (which is the current default). With the push to treat client nodes as normal nodes (and promote the transport/rest clients for client work), this should be changed. This commit remove this setting and it's companion `discovery.zen.master_election.filter_data` setting (currently defaulting to false) in favor of singe `discovery.zen.master_election.ignore_non_master_pings` setting with more intuitive name (defaulting to false).
Resolves#17325Closes#17329
readFrom is confusing because it requires an instance of the type that it
is reading but it doesn't modify it. But we also have (deprecated) methods
named readFrom that *do* modify the instance. The "right" way to implement
the non-modifying readFrom is to delegate to a constructor that takes a
StreamInput so that the read object can be immutable. Now that we have
`@FunctionalInterface`s it is fairly easy to register things by referring
directly to the constructor.
This change modifying NamedWriteableRegistry so that it does that. It keeps
supporting `registerPrototype` which registers objects to be read by
readFrom but deprecates it and delegates it to a new `register` method
that allows passing a simple functional interface. It also cuts Task.Status
subclasses over to using that method.
The start of #17085
The available memory metric was always set to `0` since 2.0.beta1 (bug). was left behind but never set. Turns out the section wasn't that useful, as it would only output the total memory available throughout all nodes in the cluster. We decided to remove the section then.
This commit fixes a line-length checkstyle violation in
YamlSettingsLoaderTests.java and removes this file from the checkstyle
line-length suppressions.
This commit fixes a line-length checkstyle violation in
JsonSettingsLoaderTests.java and removes this file from the checkstyle
line-length suppressions.
This commit adds a test that NoDuplicatesProperties throws a
NullPointerException if an attempt is made to put a key that corresponds
to a null value. This behavior ultimately comes from the super class
Properties but the test ensures that we retain this behavior.
This commit fixes a line-length checkstyle violation in
PropertiesSettingsLoader.java and removes this file from the checkstyle
line-length suppressions.
The sole constructor of XContentSettingsLoader accepts a boolean flag
that indicates whether or not null values parsed from the source should
be rejected or not. Previously a true value for this flag meant that
null values should be rejected. With this commit, the meaning of this
flag is reversed so that a true value means that null values should be
accepted (note that this is needed due to the way that settings are
unset via the cluster update settings API). The name of this flag has
been changed from guardAgainstNullValuedSettings to allowNullValues, for
clarity.
All our fields are supposed to support multi fields, so we could put the logic in
`TypeParsers.parseField` instead of duplicating the logic in every type parser.
Change version, required a minor fix in the RPM building.
In case of a alpha/beta version, the release will contain alpha/beta
as the RPM version cannot contains dashes/tildes.
Waiting for completion of list tasks tasks can cause an infinite loop of a list tasks task waiting for its own completion or completion of its children. To reproduce run:
```
curl "localhost:9200/_tasks?wait_for_completion"
```
This commit adds a guard against null-valued settings that are loaded
from yaml or json settings files, and also adds a test that ensures
the same remains true for settings loaded from properties files.
javanna
Nicholas Knize
Boaz Leskes
Tal Levy
Nik Everett
Simon Willnauer
Simon Willnauer
Jason Tedor
Martijn van Groningen
Adrien Grand
Jim Ferenczi
Alexander Reelsen
Igor Motov