OpenShift Pet vs Cattle metaphor
by Jiri Kremser
Hello,
today, I was on L&L about storage in OpenShift and I learn interesting
thing. I always thought, that everything needs to be immutable and
stateless and all the state needs to be handled by means of NFS persistent
volumes. Luckily, there is a feature in Kubernetess (since 1.3) that allows
the PODs to be treated as pets. It's called PetSet [1] and it assigns a
unique ID (and persistent DNS record) to a POD that runs in this "mode".
Common use-case for PetSet is a set of pods with a relational DBs that uses
some kind of master-slave replication and slaves needs to know the master's
address. But it can be used for anything. We can use the hostname as the
feed id for instance.
I don't know how much this will be popular because it kind of defeats the
purpose of immutable infrastructure but it can save us some work with the
feed identity. And of course we need to support also the "normal" POD
scenario.
[1]: http://kubernetes.io/docs/user-guide/petset/
jk
8 years, 8 months
New repo for various travis scripts?
by Joel Takvorian
Hi,
I just wonder if we should create a new git repo to store the different
files that are required for integration tests on the hawkular clients
(ruby, java, now dropwizard...). For now there's just 2 required files
afaik: ".travis/wait_for_services.rb" and the docker-compose file, but
there may be more in the future.
So, rather than storing a copy of each file in each client that use that
docker-based integration tests, isn't it better to store them in a new repo
and download them from travis script?
There's also a maven install script that I picked from inventory and copied
to the java client repo, that would fit in this scripts repo as well.
Joel
8 years, 8 months
open shift agent - what to call it?
by John Mazzitelli
OK, folks, as much as I hate these "what should we name this thing?" threads, I have to do it.
We are at the point where we are going to start going full-throttle on building out an agent that can monitor things on Open Shift (and Heiko wants to be able to monitor things outside of Open Shift - I'll let him chime in on what his use cases are to get a better feel for what he's thinking)
We need a name ASAP so we can create a repository under the Hawkular github namespace and put the code up there so people can start working on it. I would like to do this sooner rather than later - say, by Thursday???
Matt was thinking "hawkulark" (Hawk-U-Lark, Hawkular-K) because "k" == kubernetes.
I was thinking "GoHawk" (rhymes with "mohawk") because it is implemented in "Go"
I wasn't keen on relying on "kubernetes" as part of the name since its really targeting Open Shift and even then doesn't have to run in Open Shift (back to the ideas Heiko has for this thing).
"GoHawk" doesn't seem to be a winner simply because what happens if we implement other hawkular feeds in Golang?
I'm assuming we'll come up with a name and agree to it collectively as a group - but I nominate Thomas H, Heiko R, and John D. as the committee to give the final approval/tie-breaking authority :) It won't be me. I suck at coming up with names.
--John Mazz
P.S. Who knows how to setup one of those online polls/surveys where you can enter your submissions and vote for other submissions?
8 years, 8 months
gohawk - need Go code to write to H-Metrics
by John Mazzitelli
I am close to having GoHawk [1] be able to take flight :) He's still a fledgling, not quite ready to leave the nest yet.. but close. I could even demo what I got if some folks are interested in learning how GoHawk is configured (YAML!!!), seeing it react to changes to an Open Shift node environment on the fly, collecting Prometheus data, and mock-storing the metrics to h-Metrics.
BUT! Right now I'm at the point where I need code that writes data to Hawkular Metrics from a Go client. Anyone have code that shows how to do this? This isn't code that QUERIES the H-Metrics for existing metric data - it is code that WRITES metrics to Hawkular Metrics. I already have a array of MetricHeader objects ([]metrics.MetricHeader) - I just need code that builds up the HTTP request and sends it (including any encryption/credential parameters/settings required?).
[1] https://github.com/jmazzitelli/gohawk
8 years, 8 months
Hawkular APM 0.11.0.Final now available
by Gary Brown
Hi
The Hawkular APM team are pleased to announce the release of version 0.11.0.Final.
The release details, including distributions, can be found here: https://github.com/hawkular/hawkular-apm/releases/tag/0.11.0.Final
The release includes:
* Improvements in the UI for displaying service dependency and trace instance information
* Zipkin integration now includes Kafka support (with json and thrift encoded data)
* Initial implementation of a Java opentracing provider
* Integration with Hawkular Alerts to trigger alerts based on trace completion events
Blogs and videos will follow in the next couple of days to demonstrate these capabilities.
Regards
Gary
8 years, 8 months
MiQ log/middleware.log
by mike thompson
So currently, we aren’t really logging anything to this middleware.log (as far as I can tell). Should we be? What is our policy around using this log (versus evm.log)?
This may be more important once we are in CFME and have to debug some customer issues.
Should all of our logging goto this log? Should some? If so what?
Sorry, just a bit confused about the purpose of this log since it shows empty for me.
— Mike
8 years, 8 months
Inventory and postgres ?
by Heiko W.Rupp
Lukas,
I suspect we have an issue in inventory (or two)
- when I run inventory as is with h2db, it works, but may or may not
contribute (a lot) to the growth of the heap as seen in the
"Hawkular-services and memory" thread.
- When I try to run against postgres 9.5, the WildFly of the platform
never is available inside inventory. I see tables in postgres, but the
WF never shows. Also later on I got below error
I am also a bit puzzled, that using postgres starts of a c3p0 connection
pool instead of using what is already present in WildFly
hawkular_1 | 20:11:37,309 WARN [org.hawkular.inventory.rest]
(default task-26) RestEasy exception, :
java.lang.IllegalArgumentException: A metric type with path
'/t;hawkular/f;f38c6e77-6ee0-47da-a80a-bdac9a249457/mt;Singleton%20EJB%20Metrics~Wait%20Time'
not found relative to
'/t;hawkular/f;f38c6e77-6ee0-47da-a80a-bdac9a249457/r;Local~~/r;Local~%2Fdeployment%3Dhawkular-metrics.ear/r;Local~%2Fdeployment%3Dhawkular-metrics.ear%2Fsubdeployment%3Dhawkular-alerts.war/r;Local~%2Fdeployment%3Dhawkular-metrics.ear%2Fsubdeployment%3Dhawkular-alerts.war%2Fsubsystem%3Dejb3%2Fsingleton-bean%3DPartitionManagerImpl'.
hawkular_1 | at
org.hawkular.inventory.base.BaseMetrics$ReadWrite.wireUpNewEntity(BaseMetrics.java:79)
hawkular_1 | at
org.hawkular.inventory.base.BaseMetrics$ReadWrite.wireUpNewEntity(BaseMetrics.java:51)
hawkular_1 | at
org.hawkular.inventory.base.Mutator.doCreate(Mutator.java:168)
hawkular_1 | at
org.hawkular.inventory.base.Mutator.lambda$doCreate$95(Mutator.java:81)
hawkular_1 | at
org.hawkular.inventory.base.TransactionPayload$Committing.lambda$committing$44(TransactionPayload.java:34)
hawkular_1 | at
org.hawkular.inventory.base.Traversal.lambda$inCommittableTxWithNotifications$94(Traversal.java:119)
hawkular_1 | at
org.hawkular.inventory.base.Util.onFailureRetry(Util.java:110)
hawkular_1 | at
org.hawkular.inventory.base.Util.inCommittableTx(Util.java:81)
hawkular_1 | at
org.hawkular.inventory.base.Traversal.inCommittableTxWithNotifications(Traversal.java:118)
hawkular_1 | at
org.hawkular.inventory.base.Traversal.inTxWithNotifications(Traversal.java:91)
hawkular_1 | at
org.hawkular.inventory.base.Mutator.doCreate(Mutator.java:81)
hawkular_1 | at
org.hawkular.inventory.base.BaseMetrics$ReadWrite.create(BaseMetrics.java:122)
hawkular_1 | at
org.hawkular.inventory.base.BaseMetrics$ReadWrite.create(BaseMetrics.java:51)
hawkular_1 | at
org.hawkular.inventory.api.WriteInterface.create(WriteInterface.java:60)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher$1.visitMetric(SingleSyncedFetcher.java:313)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher$1.visitMetric(SingleSyncedFetcher.java:305)
hawkular_1 | at
org.hawkular.inventory.paths.ElementTypeVisitor.accept(ElementTypeVisitor.java:36)
hawkular_1 | at
org.hawkular.inventory.paths.Path$Segment.accept(Path.java:648)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.create(SingleSyncedFetcher.java:305)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.create(SingleSyncedFetcher.java:350)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.create(SingleSyncedFetcher.java:350)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.create(SingleSyncedFetcher.java:350)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.lambda$syncTrees$121(SingleSyncedFetcher.java:246)
hawkular_1 | at java.lang.Iterable.forEach(Iterable.java:75)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.syncTrees(SingleSyncedFetcher.java:246)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.lambda$synchronize$119(SingleSyncedFetcher.java:123)
hawkular_1 | at
org.hawkular.inventory.base.TransactionPayload$Committing.lambda$committing$44(TransactionPayload.java:34)
hawkular_1 | at
org.hawkular.inventory.base.Traversal.lambda$inCommittableTx$93(Traversal.java:106)
hawkular_1 | at
org.hawkular.inventory.base.Util.onFailureRetry(Util.java:110)
hawkular_1 | at
org.hawkular.inventory.base.Util.inCommittableTx(Util.java:81)
hawkular_1 | at
org.hawkular.inventory.base.Traversal.inCommittableTx(Traversal.java:105)
hawkular_1 | at
org.hawkular.inventory.base.Traversal.inTx(Traversal.java:96)
hawkular_1 | at
org.hawkular.inventory.base.Traversal.inTx(Traversal.java:79)
hawkular_1 | at
org.hawkular.inventory.base.SingleSyncedFetcher.synchronize(SingleSyncedFetcher.java:93)
hawkular_1 | at
org.hawkular.inventory.base.BaseResources$Single.synchronize(BaseResources.java:206)
hawkular_1 | at
org.hawkular.inventory.rest.RestSync.sync(RestSync.java:80)
hawkular_1 | at
org.hawkular.inventory.rest.RestSync$Proxy$_$$_WeldClientProxy.sync(Unknown
Source)
hawkular_1 | at
sun.reflect.GeneratedMethodAccessor108.invoke(Unknown Source)
hawkular_1 | at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
hawkular_1 | at java.lang.reflect.Method.invoke(Method.java:498)
hawkular_1 | at
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139)
hawkular_1 | at
org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295)
hawkular_1 | at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249)
hawkular_1 | at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:236)
hawkular_1 | at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:395)
hawkular_1 | at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:202)
hawkular_1 | at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221)
hawkular_1 | at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
hawkular_1 | at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
hawkular_1 | at
javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
hawkular_1 | at
io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
hawkular_1 | at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
hawkular_1 | at
io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:129)
hawkular_1 | at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
hawkular_1 | at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
hawkular_1 | at
io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
hawkular_1 | at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
hawkular_1 | at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
hawkular_1 | at
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
hawkular_1 | at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
hawkular_1 | at
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
hawkular_1 | at
io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
hawkular_1 | at
io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33)
hawkular_1 | at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
hawkular_1 | at
io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51)
hawkular_1 | at
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
hawkular_1 | at
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
hawkular_1 | at
io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56)
hawkular_1 | at
io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
hawkular_1 | at
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
hawkular_1 | at
io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
hawkular_1 | at
io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
hawkular_1 | at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
hawkular_1 | at
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
hawkular_1 | at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
hawkular_1 | at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
hawkular_1 | at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)
hawkular_1 | at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
hawkular_1 | at
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
hawkular_1 | at
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)
hawkular_1 | at
io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
hawkular_1 | at
io.undertow.server.HttpServerExchun(HttpServerExchange.java:793)
hawkular_1 | at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
hawkular_1 | at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
hawkular_1 | at java.lang.Thread.run(Thread.java:745)
hawkular_1 |
8 years, 8 months
