This experimental setting enables relocation of shards that are being snapshotted, which can cause the shard allocation failures. This setting is undocumented and there is no good reason to set it in production.
This commit upgrades the transport-netty4 module dependency from Netty
version 4.1.5 to version 4.1.6. This is a bug fix release of Netty.
Relates #21051
This commit cleans up the code handling load averages in OsProbe:
- remove support for BSD; we do not support this OS
- add Javadocs
- strengthen assertions and testing
- add debug logging for exceptional situation
Relates #21037
Follow up for #21039.
We can revert the previous change and do that a bit smarter than it was.
Patch tested successfully manually on ec2 with 2 nodes with a configuration like:
```yml
discovery.type: ec2
network.host: ["_local_", "_site_", "_ec2_"]
cloud.aws.region: us-west-2
```
(cherry picked from commit fbbeded)
Backport of #21048 in master branch
This change moves providing UnicastHostsProvider for zen discovery to be
pull based, adding a getter in DiscoveryPlugin. A new setting is added,
discovery.zen.hosts_provider, to separate the discovery type from the
hosts provider for zen when it is selected. Unfortunately existing
plugins added ZenDiscovery with their own name in order to just provide
a hosts provider, so there are already many users setting the hosts
provider through discovery.type. This change also includes backcompat,
falling back to discovery.type when discovery.zen.hosts_provider is not
set.
Here is what is happening without this fix when you try to connect to ec2 APIs:
```
[2016-10-20T12:41:49,925][DEBUG][c.a.a.AWSCredentialsProviderChain] Unable to load credentials from EnvironmentVariableCredentialsProvider: Unable to load AWS credentials from environment variables (AWS_ACCESS_KEY_ID (or AWS_ACCESS_KEY) and AWS_SECRET_KEY (or AWS_SECRET_ACCESS_KEY))
[2016-10-20T12:41:49,926][DEBUG][c.a.a.AWSCredentialsProviderChain] Unable to load credentials from SystemPropertiesCredentialsProvider: Unable to load AWS credentials from Java system properties (aws.accessKeyId and aws.secretKey)
[2016-10-20T12:41:49,926][DEBUG][c.a.a.AWSCredentialsProviderChain] Unable to load credentials from com.amazonaws.auth.profile.ProfileCredentialsProvider@1ad14091: access denied ("java.io.FilePermission" "/home/ubuntu/.aws/credentials" "read")
[2016-10-20T12:41:49,927][DEBUG][c.a.i.EC2MetadataClient ] Connecting to EC2 instance metadata service at URL: http://169.254.169.254/latest/meta-data/iam/security-credentials/
[2016-10-20T12:41:49,951][DEBUG][c.a.i.EC2MetadataClient ] Connecting to EC2 instance metadata service at URL: http://169.254.169.254/latest/meta-data/iam/security-credentials/discovery-tests
[2016-10-20T12:41:49,965][DEBUG][c.a.a.AWSCredentialsProviderChain] Unable to load credentials from InstanceProfileCredentialsProvider: Unable to parse Json String.
[2016-10-20T12:41:49,966][INFO ][o.e.d.e.AwsEc2UnicastHostsProvider] [dJfktmE] Exception while retrieving instance list from AWS API: Unable to load AWS credentials from any provider in the chain
[2016-10-20T12:41:49,967][DEBUG][o.e.d.e.AwsEc2UnicastHostsProvider] [dJfktmE] Full exception:
com.amazonaws.AmazonClientException: Unable to load AWS credentials from any provider in the chain
at com.amazonaws.auth.AWSCredentialsProviderChain.getCredentials(AWSCredentialsProviderChain.java:131) ~[aws-java-sdk-core-1.10.69.jar:?]
at com.amazonaws.services.ec2.AmazonEC2Client.invoke(AmazonEC2Client.java:11117) ~[aws-java-sdk-ec2-1.10.69.jar:?]
at com.amazonaws.services.ec2.AmazonEC2Client.describeInstances(AmazonEC2Client.java:5403) ~[aws-java-sdk-ec2-1.10.69.jar:?]
at org.elasticsearch.discovery.ec2.AwsEc2UnicastHostsProvider.fetchDynamicNodes(AwsEc2UnicastHostsProvider.java:116) [discovery-ec2-5.0.0.jar:5.0.0]
at org.elasticsearch.discovery.ec2.AwsEc2UnicastHostsProvider$DiscoNodesCache.refresh(AwsEc2UnicastHostsProvider.java:234) [discovery-ec2-5.0.0.jar:5.0.0]
at org.elasticsearch.discovery.ec2.AwsEc2UnicastHostsProvider$DiscoNodesCache.refresh(AwsEc2UnicastHostsProvider.java:219) [discovery-ec2-5.0.0.jar:5.0.0]
at org.elasticsearch.common.util.SingleObjectCache.getOrRefresh(SingleObjectCache.java:54) [elasticsearch-5.0.0.jar:5.0.0]
at org.elasticsearch.discovery.ec2.AwsEc2UnicastHostsProvider.buildDynamicNodes(AwsEc2UnicastHostsProvider.java:102) [discovery-ec2-5.0.0.jar:5.0.0]
at org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing.sendPings(UnicastZenPing.java:358) [elasticsearch-5.0.0.jar:5.0.0]
at org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing$1.doRun(UnicastZenPing.java:272) [elasticsearch-5.0.0.jar:5.0.0]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:504) [elasticsearch-5.0.0.jar:5.0.0]
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-5.0.0.jar:5.0.0]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_91]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_91]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
```
For whatever reason, it can not parse what is coming back from http://169.254.169.254/latest/meta-data/iam/security-credentials/discovery-tests.
But, if you wrap the code within an `AccessController.doPrivileged()` call, then it works perfectly.
Closes#21039.
(cherry picked from commit abfdc70)
The max score returned in the response of a query does not take rescorer into account.
This change updates the max_score when a rescorer is used in a query.
Fixes#20651
This change adds a TypesQuery that checks if the disjunction of types should be rewritten to a MatchAllDocs query. The check is done only if the number of terms is below a threshold (16 by default and configurable via max_boolean_clause).
* Move all zen discovery classes into o.e.discovery.zen
This collapses sub packages of zen into zen. These all had just a couple
classes each, and there is really no reason to have the subpackages.
* fix checkstyle
Date math index/alias expressions in mget will now be resolved to a concrete single index instead of failing the mget item with an `IndexNotFoundException`.
Added also an integration test to verify multi index aliases do not fail the entire mget request.
Closes#17957
This commit removes an undocumented output parameter node_info_format
from the cluster stats and node stats APIs. Currently the parameter does
not even work as it is not whitelisted as an output parameter. Since
this parameter is not documented, we opt to just remove it.
Relates #21021
When indices stats are requested via the node stats API, there is a
level parameter to request stats at the index, node, or shards
level. This parameter was not whitelisted when URL parsing was made
strict. This commit whitelists this parameter.
Additionally, there was some leniency in the parsing of this parameter
that has been removed.
Relates #21024
This change makes the ElectMasterService local to ZenDiscovery, no
longer created by guice, and thus also removes the ability for plugins
to customize. This extension point is no longer used by anything.
This was an error-prone version type that allowed overriding previous
version semantics. It could cause primaries and replicas to be out of
sync however, so it has been removed.
This is related to #20377, which removed the feature entirely. This
allows operations to continue to use the `force` version type if the
index was created before 6.0, in the event a document using it exists in
a translog being replayed.
Previous to this change any request using a script sort in a top_hits
aggregation would fail because the compilation of the script happened
after the QueryShardContext was frozen (after we had worked out if the
request is cachable).
This change moves the calling of build() on the SortBuilder to the
TopHitsAggregationBuilder which means that the script in the script_sort
will be compiled before we decide whether to cache the request and freeze
the context.
Closes#21022
This commit removes an undocumented output parameter output_uuid from
the cluster stats API. Currently the parameter does not even work as it
is not whitelisted as an output parameter. Since the cluster UUID is
available from the main action, and this parameter is not documented, we
opt to just remove it.
Relates #21020
This allows you to whitelist `localhost:*` or `127.0.10.*:9200`.
It explicitly checks for patterns like `*` in the whitelist and
refuses to start if the whitelist would match everything. Beyond
that the user is on their own designing a secure whitelist.
`LocalDiscovery` is a discovery implementation that uses static in memory maps to keep track of current live nodes. This is used extensively in our tests in order to speed up cluster formation (i.e., shortcut the 3 second ping period used by `ZenDiscovery` by default). This is sad as that mean that most of the test run using a different discovery semantics than what is used in production. Instead of replacing the entire discovery logic, we can use a similar approach to only shortcut the pinging components.
When running `gradle run`, a developer usually intends to get a running
instance as if they had run elasticsearch from the command line. This is
different than the isolated environment we use for integration testing
plugins. This change switches the run task to use the zip distribution,
so that all modules included in the normal distribution are included.
This tests that the templates shipped with 5.0 versions of Logstash and
Beats still work on an Elasticsearch 6.0+ node, so that we ensure that
ES can be upgraded prior to upgrading tools dependent on it.
Related to #20491Resolves#17275
* Only negate index expression on all indices with preceding wildcard
There is currently a very confusing behavior in Elasticsearch for the
following:
Given the indices: `[test1, test2, -foo1, -foo2]`
```
DELETE /-foo*
```
Will cause the `test1` and `test2` indices to be deleted, when what is
usually intended is to delete the `-foo1` and `-foo2` indices.
Previously we added a change in #20033 to disallow creating indices
starting with `-` or `+`, which will help with this situation. However,
users may have existing indices starting with these characters.
This changes the negation to only take effect in a wildcard (`*`) has
been seen somewhere in the expression, so in order to delete `-foo1` and
`-foo2` the following now works:
```
DELETE /-foo*
```
As well as:
```
DELETE /-foo1,-foo2
```
so in order to actually delete everything except for the "foo" indices
(ie, `test1` and `test2`) a user would now issue:
```
DELETE /*,--foo*
```
Relates to #19800
Updating the circuit breaker settings (and other settings) should always be possible, even if the cluster is under stress. With #20827 we updated the cluster settings request to not trigger circuit breakers. However that change is not complete since the resulting cluster state can potentially not be published. This change makes sure cluster state publishing to not trigger circuit breakers as well.
Relates to #20960 where this was discovered.
Cleaning up a few remaining occurences of using junits ExpectedException rule in
favor of using LuceneTestCase#expectThrows() which is more concise and versatile.
* Scripting: Add support for booleans in scripts
Since 2.0, booleans have been represented as numeric fields (longs).
However, in scripts, this is odd, since you expect doing a comparison
against a boolean to work. While languages like groovy will auto convert
between booleans and longs, painless does not.
This changes the doc values accessor for boolean fields in scripts to
return Boolean objects instead of Long objects.
closes#20949
* Make Booleans final and remove wrapping of `this` for getValues()
Igor Motov
Jason Tedor
David Pilato
Jack Conradson
Nik Everett
Ryan Ernst
markharwood
Jim Ferenczi
javanna
qwerty4030
Lee Hinman
Colin Goodheart-Smithe
Fanfan
Honza Král
Alexander Reelsen
Boaz Leskes
Tal Levy
Chris Earle
Chris Earle
Lee Hinman
Christoph Büscher
Joshua Rich
Clinton Gormley