This avoids a potential problems with ordering between Dropwizard and
normal repository configuration. A Dropwizard sample has been added to
verify the behaviour.
Different physical sources for the same logical metric just need to
publish them with a period-separated prefix, and this reader will
aggregate (by truncating the metric names, dropping the prefix).
Very useful (for instance) if multiple application instances are
feeding to a central (e.g. redis) repository and you want to
display the results. Useful in conjunction with a
MetricReaderPublicMetrics for hooking up to the /metrics endpoint.
This seems pretty efficient (approx 12M write/s as opposed to 2M with
the DefaultCounterService). N.B. there is no need to change most of
the rest of the metrics stuff because metrics are write-often, read-
seldom, so we don't need high performance reads as much.
The Spring Integration configuration and Dropwizard support has changed
a bit. Functionally very similar and probably opaque to users, but now
the messaging operates as an Exporter on a @Scheduled method, and
Dropwizard is a replacement [Gauge,Counter]Service.
Metrics are all
collected live in-memory (and can be very fast with Java 8), buffered
there and shipped out to a MessageChannel (if one exists with id
"metricsChannel") in a background thread.
We can still use Java 8 library APIs (like LongAdder) but to compile
to java 7 compatible byte code we have to forgo the use of lambdas :-(
and shorthand generics (<>).
Fixes gh-2682, fixes gh-2513 (for Java 8 and Dropwizard users).
Spring Framework 4.2 introduces improved support for CORS. Notably this
means that a DispatcherServlet will now process an OPTIONS request if
it contains an Origin header, without having to enable OPTIONS request
dispatching for every endpoint.
This commit takes advantage of these changes in Spring Framework 4.2 by
configuring the controller that wraps Jolokia’s AgentServlet to handle
OPTIONS requests. This allows Jolokia’s CORS support to be configured
using Jolokia’s standard configuration, as described in section 4.1.5
of the Jolokia documentation [1].
Closes gh-1987
[1] https://jolokia.org/reference/html/security.html
Previously ManagementSecurityAutoConfiguration used Spring Security's
default realm of "Realm" when authentication failed. This was confusing
because when prompted for authentication (i.e. no credentials provided)
the realm "Spring" was requested.
This commit ensures the Realm that is used is consistent for all of of the
security auto configuration.
Fixes#2466
In addition to the changes already made in 1.2.x, this commit updates
the tests in spring-boot-actuator to ensure that any Elasticsearch
data files are written into the target directory. This avoids problems
when switching branches caused by different versions of Elasticsearch
trying to read the files.
Update CacheStatisticsProvider to use a generic to indicate the type
of cache supported. Also extract individual CacheStatisticsProvider
implementations and made statistics an auto-configuration.
See gh-2633
Prior to this commit, EndpointWebMvcAutoConfiguration would start a
child context if the management port was different to the server port
and the application context was a web application context. This caused
two problems:
If a user built an executable war and configured the management port so
that it was different to the server port, their application would run
successfully when launched with java -jar, but it would fail when
deployed to Tomcat as an attempt would be made to start embedded Tomcat.
Secondly, if a user ran a test annotated with @WebAppConfiguration the
main embedded Tomcat instance would not be started, but the child
context would trigger the creation of a Tomcat instance listening on the
configured management port. This is unexpected as @WebIntegrationTest
or @IntegrationTest and @WebAppConfiguration should be required to have
the test trigger full startup of the application and listen on the
configured ports.
This commit updates EndpointWebMvcAutoConfiguration so that it will only
start a child context when the management port is different to the
server port and the EmbeddedWebApplicationContext has an embedded
servlet container. This resolves the two problems described above as
there will be no embedded servlet container when deployed to a
standalone container or when a test is run without @IntegrationTest.
Fixes gh-2798
Previously, when multiple cache managers had a cache with the same name,
the prefix for the first cache that was processed would not include its
cache manager’s name, but all subsequent prefixes would include the
cache manager’s name. This was inconsistent, and due to the cache
managers being unordered, the prefixing was not deterministic.
This commit updates the prefixing logic so that when there is a clash,
all of the affected prefixes will include the name of the cache manager.
For example, with cache managers named first and second and each
with a cache named users, the prefixes will be cache.first_users and
cache.second_users rather than cache.users and
cache.{first|second}_users.
Closes gh-2824
multipleCacheManagers fails on the CI server but does not fail
locally. This commit updates assertMetrics to include information
about the actual metrics so it's clear why the expectation was not
met.
Add an abstraction that provides a standard manner to retrieve a
statistics snapshot of a cache.
Specific implementations for JSR-107, ehcache, hazelcast, guava and
concurrent map are provided. At the moment the size of the cache and
the hit/miss ratios are recorded. Cache metrics are exposed via the
`cache.` prefix followed by the name of the cache. In case of conflict,
the name of the cache manager is added as a qualifier.
It is possible to easily register a new CacheStatisticsProvider for an
unsupported cache system and the CacheStatistics object itself can be
extended to provide additional metrics.
See gh-2633
Closes gh-2770
Previously, if a call to doFilter in MetricFilter failed (i.e. it threw
an exception), it would be handled as if it had a response status of
200. This is because the servlet container was yet to handle the
exception and set the response status to 500.
This commit updates MetricFilter to assume that an exception thrown from
doFilter will result in a response with a status of 500. Strictly
speaking, even though the filter has highest precedence and will
therefore run last on the way back out, this may not always be the case.
For example, a custom Tomcat Valve could handle the exception and result
in a 200 response but that’s an edge case that’s into shooting yourself
in the foot territory.
Closes gh-2818
- added setIndices to ElasticsearchHealthIndicatorProperties to enable
setting the indices property from configuration files
- Elasticsearch cannot handle "null" if the health of all indices should
be checked; use "_all" instead
Closes gh-2812
This commit updates Spring Boot to use Spring Security 4. As a result
of this, the coordinates of Thmyeleaf's Spring Security extra, for
which dependency management and auto-configuration is provided, have
been updated to the Spring Security 4 variant.
Closes gh-2727
- Nest the configuration class in HealthIndicatorAutoConfiguration,
bringing it into line with the other health indicator configuration
classes
- Include the statistics from the response in the health’s details
- Map YELLOW to UP rather than UNKNOWN as it indicates that the cluster
is running but that “the primary shard is allocated but replicas are
not” [1]. The details can be used to determine the precise state of
the cluster.
- Add a property to configure the time that the health indicator will
wait to receive a response from the cluster
- Document the configuration properties
- Update the tests to cover the updated functionality
See gh-2399
[1] http://www.elastic.co/guide/en/elasticsearch/reference/1.x/cluster-health.html
This commit improves upon the changes made in a8bf9d3 by adding
support for relaxed binding of the endpoints.enabled and
endpoints.<name>.enabled properties. This is achieved by replacing
use of @ConditionalOnExpression (which does not support relaxed
binding) with a custom condition implementation that uses
RelaxedPropertyResolver.
Closes gh-2767
Dave Syer
Andy Wilkinson
Josh Thornhill
Rob Winch
Phillip Webb
Stephane Nicoll
Christian Laakmann
Sergey Egorov
Binwei Yang