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openzipkinzipkin
two separate bugfixe
Bug
1 bugfix gototrace not trigger on other page than default create a malformed url 2 webpack devproxy only target default page locally and get resource from upstream api if you attach an external dev server the external zipkin server can now be configure with an environment variable
openzipkinzipkin
ui fail to render trace without endpoint
Bug
the thrift l276 schema state that endpoint be optional however when render it appear that for some core annotation the endpoint be require and override the value see this l132 otherwise the page fail to render
openzipkinzipkin
zipkin web trace display error
Question
the trace show be out of order use golang image theoretically it should be like this use c image json datum generate by the same two language image and sometimes on the first page after click find trace trace time display will be more than 100 image if you click it you can ...
openzipkinzipkin
fix ui display of json value
Bug
before json in a binary annotation value result in the ui display object object this guard and stringifie object while leave primitive alone fix 1113
openzipkinzipkin
display service name when show address in the span detail element
Enhancement
example screenshot image why when a request come from or go to uninstrumented service the instrumented part may log can sa annotation that include not only the peer ip address but also the service name however the current ui while it have a special handing for ca sa annotation do not display the s...
openzipkinzipkin
ui do not display binary annotation value if it contain a json string
Enhancement
our instrumentation emit some binary annotation as json string when return from query service it look all properly escape key haproxy logmessage value msg tw 0 tt 8625 tr 0 tq 8624 tc 1 backend but in the span popup it ...
openzipkinzipkin
zipkin ui text roll off the rhs
Enhancement
would be nice if we could do something to prevent text roll off the screen image json traceid daeea3ed1a5c9002 name query i d daeea3ed1a5c9002 timestamp 1462244752792000 duration 406000 annotation endpoint servicename c test cluster localhost ipv4 172 18 0 1...
openzipkinzipkin
make servicename an option string in queryrequest
Enhancement
issue zipkin query currently have no way to request trace across service make it difficult to show any sort of int service overview ui propose solution change servicename from be require to be optional I m new to cql so feedback on repository java change would be appreciate
openzipkinzipkin
zipkin ui could provide well feedback on slow response
Enhancement
when an api query be slow it could look misallocated in chrome debug for example the below slow call to service wasn t cause by api v1 service rather api v1 trace which take 200second to return thank to yzhang8015 for report
openzipkinzipkin
can not find trace in ui
Question
I input traceid in ui web curl I response be 404 how can I input traceid find trace info
openzipkinzipkin
add save a trace functionality
Enhancement
it d be really nice if individual trace could be tag to not age out of cassandra through the ui
openzipkinzipkin
not all the span render in the ui
Bug
give the following trace where I see a lot of servicea there be 10 I only see two of they render in the ui which seem very weird the ui in fact seem to keep space time to render they but do not render anything traceid bd8283279c35f5e1 name get i d 54f3362c23fd3423 parentid bd82...
openzipkinzipkin
how to get the trace from brave client filter for inter service call
Question
hi currently I be do a poc on zipkin for java web service implement in jersey2 I want to trace the call make by one web service application to other application the call be make by http use jersey2 client and also by httpurlconnection I have follow follow step 1 2 web service application jersey2 both w...
openzipkinzipkin
ui work splash stick on span view screen
Bug
I see this when run ui from the query service I e 1 37 screen shoot 2016 04 04 at 11 24 30 am the console error trace look like uncaught typeerror can not read property openchildren of undefined anonymous function trace js 94 jquery extend each jquery js 365 anonymous function tra...
openzipkinzipkin
high level step to instrument a java application and get result on zipkin ui
Question
hi I have recently setup zipkin and zookeper as per the documentation I have also brave library for java however I be struggle to find anywhere what will be the next step be there any documentation or reference that I can follow to instrument a sample application if someone who have already instrument fo...
openzipkinzipkin
don t distribute non shadow jar of collector service and query service
Bug
when people download the wrong jar the ui asset win t be bundle neither will any of the jar dependency I think mansu have this problem get the wrong jar or so it seem from the gitter conversation if there s no good reason why we re publish the not shadow jar maybe we could just as well not distribu...
openzipkinzipkin
first index page be hit api v1 span servicename undefined
Bug
when first load the zipkin ui test with zipkin query 1 39 docker container it seem that the javascript be try to load span with undefined servicename
openzipkinzipkin
proposal drop scala backend implementation in favor of zipkin java
Enhancement
the zipkin java project be create out of issue 451 463 it be now approach version 1 0 and result in question about the future of the scala implementation this issue will enumerate opportunity concern and any action to take on this topic pro zipkin java have more feature it have a no dep...
openzipkinzipkin
favicon ico miss from zipkin ui
Bug
seem like the zipkin ui be miss a favicon ico one we can use can be take from
openzipkinzipkin
allow specification of start time in web search ui
Enhancement
sometimes it s nice to be able to narrow down your search a bit more the absence of this feature always seem a bit odd
openzipkinzipkin
feature request please add an ability query with startts and not just endts
Enhancement
so the zipkin ui have a filter for the end timestamp be it possible to add a way to also query by the starting timestamp one example be if I be look for new trace I don t want to see trace that be 12 hour old so I would be able to provide a stop point in history not to pull those old trace
openzipkinzipkin
zipkin ui consider open a new tab when click on a trace
null
when navigate from the find trace view to a trace you be fine navigate back be a problem as the result might be different gena01 suggest open a new tab on trace detail so that the find view be stable when the trace click isn t the one you want
openzipkinzipkin
zipkin ui add hash to filename of app min js css map
Enhancement
the inside of the jar list look like this after the change meta inf meta inf manifest mf zipkin ui zipkin ui 448c34a56d699c29117adc64c43affeb woff2 zipkin ui 614fad616d014daf5367e068505cad35 png zipkin ui 89889688147bd7575d6327160d64e760 svg zipkin ui 8b55a822e72b8fd5e2ee069236f2d797 png zipkin ui app 8f28...
openzipkinzipkin
feature request update response header in zipkin query for zipkin ui asset
Enhancement
please add update response header to include cache control and or expire header when serve zipkin ui static file I see they be reload on every page click also seem like 8b55a822e72b8fd5e2ee069236f2d797 png which might be a favicon return the follow response header text content type image png ch...
openzipkinzipkin
zipkin web 1 37 and zipkin query 1 38 web ui return error in web console
Bug
I be unable to use the late 1 37 docker container for zipkin web or just try zipkin query 1 38 with the web ui when I select a service from the dropdown list I be see nothing load and error in web console in both firefox and chrome firefox report too much recursion chrome report text lodash js 13824un...
openzipkinzipkin
document improve zipkin ui route rule
Enhancement
the readme be available at before merge x merge 1049 this pr be base off of that x add reasoning on the packaging format choice to readme maybe eirslett could explain it well x verify zipkin query serve index html I can t compile it locally atm host method initially this pr...
openzipkinzipkin
ui make expand all the default view for a trace
Question
transfer one of our internal ticket many user have ask for trace to be fully expand by default unless it exceed a certain n of span especially new user often get confuse by see incomplete trace by default
openzipkinzipkin
deprecate zipkin ui web reorganize webpack structure
Enhancement
close in favor of 1049 same changeset initially but on a share branch
openzipkinzipkin
load configuration from config json
Enhancement
rename the config js endpoint return json instead of set window config this be more flexible but also somewhat more involved since we have to load configuration asynchronously from the client code also add source map generation for js and css easy debugging
openzipkinzipkin
feature more es6ify
Enhancement
a pretty big diff this be a bunch of cosmetic change to the js code it s all es2015 now I ve apply airbnb s code style guide with a few tweak we run linte with npm run lint abesto do you think it should be part of the gradle build set up with some kind of dependency
openzipkinzipkin
span should get child ids
Bug
it look like there be a bug in rendertrace probably an oversight after a refactoring in the web ui the datum modelview prepare for trace render every span have a list of child child span id this list only contain a single element the i d of the span itself I m sure the intention be to get the actual list o...
openzipkinzipkin
thrift less cassandra schema
Enhancement
both michaelsembwever and yurishkuro hint that a thrift less cassandra schema might be useful let s evaluate what such a schema might look like and a transition plan
openzipkinzipkin
master branch duration in waterfall show incorrectly
Question
I run zipkin from source commit be 95c017e4eaf372060fe2e587ea6638c2a8448775 see below screenshot image duration be calculate by server receive server send instead of client receive client send
openzipkinzipkin
render the index default page completely client side
Enhancement
the default page use to leverage a modelview endpoint on the scala server to generate a model to pass into its mustache template the logic from that modelview endpoint be now port to javascript so that all the pre render business logic happen on the client side since this be a high risk ch...
openzipkinzipkin
1 33 2 collapse button in trace detail page not work
Duplicate
use the datum in tracegen when click the button at the left of service natoque the service do not expand before click after click
openzipkinzipkin
the total time of each span seem incorrect
Question
in the summary page home page zipkin will show a summary time of each span below each trace we have many redi span each cost 300u but in the summary page it show redis 232 5ms 5ms 232 21 5us so I think may be the summary data be incorrect
openzipkinzipkin
add health endpoint to zipkin query and zipkin web
Enhancement
various platform have admin instance that expose health and twitter s do so on a different port by introduce a health endpoint we can start a portable conversation about health that doesn t rely on platform convention or open more port on the firewall the use case for this be load balancer health check and...
openzipkinzipkin
support heath endpoint
Enhancement
in our testing tool we be check that the zipkin query server be run but do a head request to the api this will return 404 but if we do a get request it will respond normally with 200 that s an extra burden to be send datum when it do need to and the api should be respond to head also optionally or in additio...
openzipkinzipkin
fix ui navbar highlighting
Bug
the find a trace menu element be hard code to always be select this fix create a navbarui component which listen to navigate event and highlight the correct menu item depend on the route
openzipkinzipkin
fix ui bug trace placeholder wasn t show
Bug
after the ui refactore a bug in the handling of queryresult surface this mean the placeholder that be show before you have make any query be never render this fix add a querywasperformed property that be compute client side the structure of the json return from the server be also simplify a bit yur...
openzipkinzipkin
improve ux when multiple binary annoation exist in the same span with the same key
Bug
why do the same binary annotation pop up twice in zipkin it be possible to have multiple host in the same span each of they can log the same binary annotation tag ex http status when they match this look like a duplicate when they don t match this could be helpful ex the client perceive an erro...
openzipkinzipkin
improve cache heard of the ui s asset
Question
zipkin ui render very fast once all the asset be retrieve app min js have max age 600 must revalidate cache header and it s be send every time that s the main source of wait on the ui for I at least I think add well cache header will make wonder for ux eirslett probably interested
openzipkinzipkin
remove all server side mustache code from zipkin web
Enhancement
the server now only deliver a static index html page which in turn load javascript css to run the application remove mustache dependency from gradle add index html container page for host the application add new flight ui component common for render the application layout the environmentui c...
openzipkinzipkin
ui refactore
Enhancement
my plan be to refactor zipkin web to that the web gui for zipkin become a pure html javascript css frontend on top of zipkin query s rest api a lot of work have already be do introduce webpack as a build system for the frontend move bit and piece of logic from server to client some more to be do render ...
openzipkinzipkin
move all mustache render to the browser
Enhancement
this mean the zipkin web backend be now only basically a json api deliver static asset there s a lot of complexity go on in the transformation from trace span json datum to datum that be feed into mustache template these transformation be still write in scala but host at modelview endpoint ideally they s...
openzipkinzipkin
ui the dependency be not present at all for service
Question
for the follow json receive from the query server traceid 5a646801ed9b6dc5 name http reservation name i d 5a646801ed9b6dc5 timestamp 1 455352726564e 15 duration 866000 annotation endpoint servicename ...
openzipkinzipkin
ui span be shift to the left their relative time be negative
Question
image span bug json span bug txt
openzipkinzipkin
bugfix make sure that the span be wrap in jquery
Bug
I m not sure if it s affect the end user experience in any way but we get a javascript exception that block execution when you click the expand all button to show all span in a trace you must open the browser debugger to see it apparently javascript s weak type system have be abuse leveraged se...
openzipkinzipkin
how should we handle single host rpc span in the ui
Enhancement
at least htrace opentracing google cloud trace and sleuth use single host span for example client send and server receive be in different span base on the client or the server tracer zipkin s v1 model be design to have client and server in the same span hence the need for the annotation cs sr ss ...
openzipkinzipkin
ui service name not present for some span
Question
hello in our e2e test project we re test integration with zipkin for some of the create span the ui be not present the service name zipkin I ve do an analysis of the json from zipkin and it seem to be valid most likely there be a bug in the ui how to reproduce either see the attach json ...
openzipkinzipkin
ui frozen highlighting in the navigation bar
Bug
maybe someone know how to quickly fix it in mustache l23 html find a trace dependency the class active be always hardcode on the find a trace menu item even if the page be show dependency
openzipkinzipkin
zipkin v2 span model
Enhancement
we should not try to do all thing as zipkin v2 the large amount of interesting thing may lead we to never even start I believe that if we pare down do basic create a model that only include feature that work in zipkin 1 backend we can start and finish something for example zipkin 1 only really support str...
openzipkinzipkin
rfc fix anormdb dependency
Bug
as describe in 929 shortly anormdependencystore do not report dependency that have intermediate span between rpc like span1 sr ss span2 call span3 cs sr ss cr dependency 1 this change also add dependency use client addr and server addr like span1 can sr ss dependency 1 ...
openzipkinzipkin
rfc extend dependencylink datum model to include infer instrumentation
Enhancement
background adoption be one of the big challenge to successful deployment of distribute tracing in an organization developer often need to upgrade dependency of their service and change configuration in the good case or even change the application code in the bad case therefore automatic tracking of...
openzipkinzipkin
how to track async span
Enhancement
so I think we ll need to think about async or background task a little bit more at this moment if you have let say service a calling service b and service b use a background task to send an email you can do two thing the background task be in the same trace the background task be in a different trace t...
openzipkinzipkin
track indirect service dependency
Enhancement
imagine a case where some route layer like haproxy be add its own span to pass through trace this make the dependency graph not very interesting as instead of a b link for any pair of a and b we would get a haproxy and haproxy b such edge have merit but they completely lose the a...
openzipkinzipkin
fix select end time no effect
Bug
end time handling seem to be corrupt and this change fix 786
openzipkinzipkin
why do span servicename give priority to serveraddress
Question
I agree that server side should take precedence over client side but it seem the coreserver annotation should be the top priority not serveraddress binary annotation in the current form if 10 client call the same service but all decide to call it differently in serveraddress it will appear under 10 differen...
openzipkinzipkin
improve ui control behaviour before js have load
Bug
I find often that before the js have fully load execute on the query result page I ll mistakenly click on a ui control such as the sort order dropdown and find that it do nothing imo it would feel much nice to do one of the follow make it clear to the user that any interaction with the page before js have l...
openzipkinzipkin
single sided rpc span be not recognize for dependency diagram
Enhancement
specifically in cassandra implementation in zipkin dependency spark not sure about other store there be situation where only the server or the client be instrument yet it be able to identify the peer and emit a clientaddress or serveraddress annotation within the single sided span I want to add a test to th...
openzipkinzipkin
do not replace empty string with unknown and do not return they to ui
Bug
fix 896
openzipkinzipkin
ui should not prefer empty service name in annotation over non empty one
Bug
when instrument outgoing http call the target service name be not always know so the client can emit serveraddress annotation with the correct host port but empty service name this result in the span display in the ui with service name of unknown even though when the server be instrument it emit a valid se...
openzipkinzipkin
aggregate tab not visible and how to show dependency graph
Question
hi I be unable to see aggregate tab in zipkin ui be it some sort of configuration or it be remove
openzipkinzipkin
limit select statement in getspanname to avoid timeout
Enhancement
some user can abuse zipkin s design and insert crazy number of span name underneath each service name this will initially manifest itself as a problem through timeout when try to read all span name for a give service name back out again the only purpose to the span name table be for the ui component display all s...
openzipkinzipkin
dependency view should deduplicate edge
Bug
due to the fact that the ui do not specify the startts param call the query service duplicate edge might be add to the graph which result in an exception on the js side uncaught error graph already have edge servicea serviceb the problem be cause by run the dependency job on different day ...
openzipkinzipkin
discrepancy in the number of span per trace report in the ui
Bug
search result show that a trace have 4 span servicea 1x serviceb 3x however when go into detail of that trace there be only 3 span there be indeed 4 record in the database because one of the span be rpc and thus have two side submit to storage separately the front page may not be do the merge of the ...
openzipkinzipkin
add cache control to public css and js
Enhancement
I m not scala programmer but look at this I think it should work the ui be slow look at the cause it be because we have lot of css and js and they be send everytime adriancole please run test xd
openzipkinzipkin
configurable cassandra driver s read timeout
Enhancement
on large dataset I ve notice frequent com datastax driver core operationtimedoutexception default timeout be 12 second which be quite small please add configuration flag for this parameter for query service so it can be overriden or provide a way to override it in config
openzipkinzipkin
can not see late trace when many in the db
Bug
how the ui work now seem to work stage 1 search here you specify the service name endtime and limit stage 2 ordering of result once there be result there be an ordering dropdown to order these result I have 30 000 trace for a give service these trace have be send the last 1 month or so I want to see ...
openzipkinzipkin
introduce local component lc binary annotation and example use case
Enhancement
local span have be discuss at length but have never be formalize this formalize how to tag a span as local include rationale documentation to help demonstrate the point zipkin web and zipkin query use this for bootstrap trace fix 808 here be example local span from finatra and twitter server bootstrap ...
openzipkinzipkin
move clock skew correction to spanstore for portable testing
Enhancement
clock skew correction be vital for the ui to appear properly particularly in the current model this be because there s no concept of sequence of span except by timestamp the type of clock skew adjustment zipkin do be shift child span to a later timestamp when they appear to happen before their parent formerly...
openzipkinzipkin
support local span via a local component lc binary annotation
Enhancement
currently it be tribal knowledge that local in process span exist we need a way to designate span as local and offer insight into how to use they this can lead we to answer what status quo could be on this and how they might be test firstly local span need to be annotate with a namespace that can be us...
openzipkinzipkin
enable duration query by promote span duration timestamp
Enhancement
a commonly request feature be query by duration for example show trace long than 1 minute while the ui support ordering by duration it be a game of chance whether the trace return happen to be long or not even if you put a limit of 1000 you still may not find the long trace as your storage system may have...
openzipkinzipkin
service dropdown double
Bug
run v 1 19 2 on load home page the server log 14 01 27 215 cluster1 nio worker 2 info c t zipkin example servicenamecache cache return service list mezzannine minimez 14 01 27 216 cluster1 nio worker 2 info c t f h filter accessloggingfilter 127 0 0 1 30 oct 2015 18 01 27 0000 ...
openzipkinzipkin
allow viewing of old dependency
Enhancement
while the dependency api accept a stop point endts 1445470517980000 the ui doesn t expose this this mean people make demo with can datum will see nada and have no mean to in the mean time folk use spigo need to re run their simulation before post to zipkin if you see nothing maybe it be just old dat...
openzipkinzipkin
too many connection to the mysql db
Bug
after run the query and collector for a while I can see the mysql db maxe out its connection error 1040 08004 too many connection it seem our setting be 120 connection I can see it slowly build up and never release even when there be no activity in query and probably almost none in the collector
openzipkinzipkin
annotation query search doesn t work if end timestamp give of future
Bug
whenever I play with zipkin to track query realtime I change the end timestamp to tomorrow so that I need not update the timestamp every minute this work fine except for annotation query search step to reproduce 1 find an annotation query which give non zero result 2 change end timestamp to tomorrow ...
openzipkinzipkin
authn support
Enhancement
in our deployment of zipkin some internal customer be ask for authentication support such that we can restrict the access on a per service level the reason for this be mostly that binary annotation may contain security sensitive information what I would be interested in be secure the query service via some for...
openzipkinzipkin
dependency graph be incorrect
Bug
I have a test setup where traceproducerone sleep 0 5 then call traceproducertwo which sleep 0 2 and call traceproducerthree which sleep 0 3 clicking on the dependency graph I would expect traceproducerone traceproducertwo traceproducerthree instead I have the following graph which be incorrect as one...
openzipkinzipkin
revamp the zipkin data model
Enhancement
revamp of the datum model will be summarize here after discussion in a google doc
openzipkinzipkin
doesn t work with amazon rd
Question
we ve be try to get the mysql storage to work on amazon rds with little success use docker zipkin we manage to use the mysql storage and it work fine change the mysql host to an rds instance send dummy trace and try to see they in the web ui by submit the search form end up in error such as query ...
openzipkinzipkin
find an alternative to dagre d3 for dependency view
Enhancement
accord to its homepage dagre d3 be no long maintain let s figure out what we should use instead cc eirslett
openzipkinzipkin
spanname filter should consider character case in zipkin web ui
Bug
I m use finagle which might record it s rpc method as span name e g getresult in the zipkin ui there will be a low case getresult show in the dropdown when I select it I ll find nothing but if I manually change the url from like to I could get the right answer it look like we sh...
openzipkinzipkin
settle on startts endts and fix dependencie ui
Enhancement
troubleshoot subtle problem be unnecessarily difficult as we use many way to refer to the start and end of a span in epoch microsecond this settle on startts and endts which be the dominant name by do so it be cognitively easy as for example we can see that span endts relate directly to the quer...
openzipkinzipkin
initial implementation of cache service name
Enhancement
ui service name dropdown be populate use ajax call to api service endpoint use servicename component http response to api service include cache control max age 300 must revalidate header which make browser return cache value of service name browser cache for api service call expire after 5 minute...
openzipkinzipkin
fix span name selector
Bug
the span name selector ui be call gettrace instead of getspanname this happen during the switch to the json api this change fix that and clarify the confusing naming that be use in the web handler fix 748
openzipkinzipkin
span name selector ui break
Bug
with the merge of the json api branch the selector in zipkin web be break because it load datum from api span servicename xxx which return a nest array of span and then try to display it as if it be a array of string previously the datum be load from a span name endpoint which use getspanname ...
openzipkinzipkin
db error when try to display 1000 item in the ui 698
Bug
quick fix to enable limit on query that use in and order by cassandra 6722 see
openzipkinzipkin
clarifie contract of dependencystore and backfill test
Enhancement
this standardize on micro for dependency start end interval and backfill test in a way that doesn t flake on timezone it also clarify doc and converge the dependencysource sink as prior to our move to json in the near future we be go to migrate from thrift to json api this backfill test and revise the contract...
openzipkinzipkin
convert the communication between web and query to http
Enhancement
formerly zipkin s ui communicate with the query server via thrift rpc this mean that any implementation that support the ui need to run a thrift listener there s many problem with this thrift rpc isn t support in most framework hence a learning curve thrift rpc isn t support by loadbalancer so you have...
openzipkinzipkin
service dependency ui enhancement
Enhancement
each item might need to be split into separate issue but I want to just list they all in one place without some of these feature the dependency graph be practically unusable for large system e g 500 service 1 there should be a combobox with service name and select a service should act similar to what ha...
openzipkinzipkin
regex capability to ui annotation query search
Enhancement
if my http uri be foo bar bla asdf I should be able to search all trace which have value as foo be there already a way for it
openzipkinzipkin
duplicate annotation show in ui
Bug
ui the timeline be weird because I be debug in the service location service but I get the same thing with a normal timeline when I don t do that date time relative time service annotation host 21 09 2015 06 00 30 10 000ms fleet location updater acquire 127 0 0 1 9007 21 09 2015 06 0...
openzipkinzipkin
ui query do not work if be present in the value of a binary annotation
Bug
the current split logic l76 blindly split whole of the query by and do not care if that might be present in the value hence this binnary annotation query fail http uri foo bar 3 I e have another in the value foo bar 2
openzipkinzipkin
allow cache of getservice in the ui
Enhancement
from yurishkuro the query to get all service name in cassandra need to hit every node in the cluster we ve be see strange huge latency with it recently still investigate to mitigate the impact I ve add a cache of service name in cassandra span storage which periodically refresh itself I think we sho...
openzipkinzipkin
reduce duplicate write in cassandra to service name and span name table
Enhancement
problem store span in cassandraspanstore involve write to service name and span name table these table be nothing more than list of service name and span name active within the index ttl period default of 3 day there be both at the application level and in the database a large amount of waste overhead with d...
openzipkinzipkin
zipkin collector service be well configurable
Enhancement
allow more configuration option to be configurable through environment variable especially be able to easily configure log level sample rate and number of queue worker be crucial for we
openzipkinzipkin
revisit zipkin aggregate
Duplicate
zipkin aggregate have 3 part an api a ui and a hadoop job that populate datum I ve see this in eirslett s demo and get excite run the hadoop jar and click on the ui and scratch my head we need to inventory what this do so that folk know what it be suppose to do the lack of knowledge ...
openzipkinzipkin
can not show aggregate on web ui
Question
hi I try to display some agregregate from on web ui and it doesn t work for I here be step I make vim src main scala com twitter zipkin example main scala l22 val gensampletrace flag gensampletrace false generate sample trace val gensampletrace flag gensampletrace true ...
openzipkinzipkin
add environment app name in the web ui
Enhancement
this commit add an environment or app name in the top right corner of the the ui this argument default to the empty string so there will be no visual change to previous version if people don t want to set it