UnknownHostException for AWS private host results in startup failure
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
Bamboo will not start due to UnknownHostException for the AWS private hostname. An error like below can be found in the <bamboo-home>/logs/atlassian-bamboo.log:
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2016-02-05 16:34:50,686 FATAL [finishsetupBackgroundThread] [BambooContainer] Cannot start bamboo
java.lang.RuntimeException: java.net.UnknownHostException: ip-10-1-0-112: ip-10-1-0-112: unknown error
at com.atlassian.security.auth.trustedapps.UIDGenerator.generateUID(UIDGenerator.java:71)
at com.atlassian.security.auth.trustedapps.BaseEncryptionProvider.generateUID(BaseEncryptionProvider.java:18)
at com.atlassian.bamboo.container.startup.InitialiseTrustedAppsOnStartup.run(InitialiseTrustedAppsOnStartup.java:41)
at com.atlassian.bamboo.container.BambooContainer.start(BambooContainer.java:252)
at com.atlassian.bamboo.upgrade.UpgradeLauncher.upgradeAndStartBamboo(UpgradeLauncher.java:153)
at com.atlassian.bamboo.ww2.actions.setup.FinishSetupAction.execute(FinishSetupAction.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)
at org.apache.struts2.interceptor.BackgroundProcess$1.run(BackgroundProcess.java:57)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.UnknownHostException: ip-10-1-0-112: ip-10-1-0-112: unknown error
at java.net.InetAddress.getLocalHost(InetAddress.java:1505)
at com.atlassian.security.auth.trustedapps.UIDGenerator.generateUID(UIDGenerator.java:25)
... 13 more
Caused by: java.net.UnknownHostException: ip-10-1-0-112: unknown error
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getLocalHost(InetAddress.java:1500)
... 14 more
Cause
/etc/hosts file is misconfigured missing the private IP for localhost:
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127.0.0.1 localhost localhost.localdomainResolution
Stop Bamboo
Add private hostname to localhost domain in
/etc/hostsfile for the host shown in the error log (e.g. ip-10-1-0-112):1127.0.0.1 localhost localhost.localdomain ip-10-1-0-112Start Bamboo
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