Agent tries to register while it is already registered

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We have TeamCity server 10.0.2 (build 42234) and 10 Agents installed and running locally on the same server.

buildAgent.properties for each of the agent looks like this:

serverUrl=http://localhost:8080/teamcity
name=agent-<N>
workDir=../work
tempDir=../temp
systemDir=../system

all having unique agent name and authorizationToken. However we continuously receiving such warnings:

jetbrains.buildServer.AGENT - Agent "agent-1" {id=1} tries to register while it is already registered.
jetbrains.buildServer.AGENT - Agent "agent-2" {id=2} tries to register while it is already registered.
jetbrains.buildServer.AGENT - Agent "agent-10" {id=10} tries to register while it is already registered.
jetbrains.buildServer.AGENT - Agent "agent-7" {id=7} tries to register while it is already registered.
jetbrains.buildServer.AGENT - Agent "agent-6" {id=6} tries to register while it is already registered.
jetbrains.buildServer.AGENT - Agent "agent-8" {id=8} tries to register while it is already registered.
jetbrains.buildServer.AGENT - Agent "agent-9" {id=9} tries to register while it is already registered.

 

Any assumptions on this? What could be the origin problem?

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Hello,

 

Could you please provide ownPort values of your agents in buildAgent-<N>/conf/buildAgent.properties files?

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Hi,

 

We don't have such property specified in buildAgent.properties files. As I understand, such way agents should dynamically pick the first unused port from some ports range, right?

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Please refer to the similar topic: 

https://teamcity-support.jetbrains.com/hc/en-us/community/posts/206293149-Simultaneous-Concurrent-builds-on-a-single-build-agent

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Ok, we set unique port numbers for all agents using ownPort property, but still see the same warning:

[2017-02-13 02:43:35,857] WARN - jetbrains.buildServer.AGENT - Agent "agent-6" {id=6} tries to register while it is already registered.
[2017-02-13 02:43:35,860] WARN - jetbrains.buildServer.AGENT - Agent "agent-10" {id=10} tries to register while it is already registered.
[2017-02-13 02:43:37,041] WARN - jetbrains.buildServer.AGENT - Agent "agent-1" {id=1} tries to register while it is already registered.
[2017-02-13 02:43:39,076] WARN - jetbrains.buildServer.AGENT - Agent "agent-4" {id=4} tries to register while it is already registered.
[2017-02-13 02:44:10,170] WARN - jetbrains.buildServer.AGENT - Agent "agent-6" {id=6} tries to register while it is already registered.
[2017-02-13 02:44:16,266] WARN - jetbrains.buildServer.AGENT - Agent "agent-7" {id=7} tries to register while it is already registered.
[2017-02-13 02:44:17,859] WARN - jetbrains.buildServer.AGENT - Agent "agent-1" {id=1} tries to register while it is already registered.

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I'm seeing the same issue... does anyone have an answer out there? this just seems to have been dropped.

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here's our log output:

[2018-04-11 09:35:41,785] WARN - jetbrains.buildServer.AGENT - Agent "devit-bld-test4" {id=2827} tries to register while it is already registered.
[2018-04-11 09:35:41,800] WARN - jetbrains.buildServer.AGENT - Agent "devit-bld-test5" {id=2826} tries to register while it is already registered.
[2018-04-11 09:35:41,816] WARN - jetbrains.buildServer.AGENT - Agent "dvbldpl003" {id=1511} tries to register while it is already registered.
[2018-04-11 09:35:41,816] WARN - jetbrains.buildServer.AGENT - Agent "Coverity016" {id=801} tries to register while it is already registered.
[2018-04-11 09:35:41,832] WARN - jetbrains.buildServer.AGENT - Agent "dvbldpl004" {id=1512} tries to register while it is already registered.
[2018-04-11 09:35:41,847] WARN - jetbrains.buildServer.AGENT - Agent "dvbldpl005" {id=1514} tries to register while it is already registered.
[2018-04-11 09:35:41,847] WARN - jetbrains.buildServer.AGENT - Agent "Coverity027" {id=3691} tries to register while it is already registered.
[2018-04-11 09:35:41,863] WARN - jetbrains.buildServer.AGENT - Agent "dvbldpl006" {id=1513} tries to register while it is already registered.
[2018-04-11 09:35:41,878] WARN - jetbrains.buildServer.AGENT - Agent "dvbldpl007" {id=2245} tries to register while it is already registered.
[2018-04-11 09:35:41,894] WARN - jetbrains.buildServer.AGENT - Agent "dvbldpl008" {id=1674} tries to register while it is already registered.

when this started to happen, the server was under high memory pressure.

the server was rebooted, and the agents took 14+  minutes to 'find' the prod server again. 

Anyone have a clue?

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