Description:
On Windows, the upgrade from TIBCO ActiveMatrix BPM 2.0,2.1 to TIBCO ActiveMatrix BPM 2.2,3.0,3.1 fails at tibcohost upgrade with the error, "TIBCO-AMX-INFRA-002126: error renaming...."


Symptoms:
The upgrade from TIBCO ActiveMatrix BPM 2.0,2.1 to TIBCO ActiveMatrix BPM 2.2,3.0,3.1 fails with the above error. It happens while using TIBCO Configuration Tool (TCT) option :Upgrade TIBCO ActiveMatrix BPM Instance.

The upgrade fails while upgrading tibcohost. In the "upgrade.tibcohost" log present at  <CONFIG_HOME>\tct\bpmupgrade\<date-time>\logs, the following error is seen :

TIBCO-AMX-HPA-CLI-000104: error converting existing host to new version
    at com.tibco.amf.hpa.client.cli.commands.ConvertHostCommand.execute(ConvertHostCommand.java:134)
    at com.tibco.amf.hpa.client.ant.tasks.HPAClientTask.execute(HPAClientTask.java:195)
    at com.tibco.amf.hpa.client.ant.tasks.UpgradeHostTask.execute(UpgradeHostTask.java:52)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
..
Caused by: TIBCO-AMX-INFRA-002124: error preparing for rename of E:\ProgramData\BPM-2.1-XX\tibco\data\tibcohost\Admin-AMX BPM-AMX BPM Server\host to E:\ProgramData\BPM-2.1-XX\tibco\data\tibcohost\Admin-AMX BPM-AMX BPM Server\data_3.2.x\host
    at com.tibco.neo.util.FileChangeRecord.renameFile(FileChangeRecord.java:201)
    at com.tibco.amf.hpa.core.common.store.StoreManager.convert(StoreManager.java:301)
    ... 109 more
Caused by: TIBCO-AMX-INFRA-002126: error renaming E:\ProgramData\BPM-2.1-XX\tibco\data\tibcohost\Admin-AMX BPM-AMX BPM Server\host to E:\ProgramData\BPM-2.1-XX\tibco\data\tibcohost\Admin-AMX BPM-AMX BPM Server\host.tmp0
    at com.tibco.neo.util.FileUtils.simpleRenameFile(FileUtils.java:532)
    at com.tibco.neo.util.FileChangeRecord.renameFile(FileChangeRecord.java:185)
    ... 110 more


Cause:
The error is because the upgrade script is not able to rename the <CONFIG_HOME>\tibcohost\<instance name>\host folder to <CONFIG_HOME>\tibcohost\<instance name>\host.tmp0. On Windows, typically a lot of customers start the tibcohost using the command prompt. The upgrade script first stops the tibcohost and then tries to rename the folder as part of upgrading the host from 3.1.5 to 3.3.0. It fails to rename the folder as the command prompt (from which tibcohost is started) holds the lock of the folder. In Windows, a folder is considered locked if it is displayed in Windows Explorer or if a command shell is open with the folder as the current directory.

TIBCO-AMX-INFRA-002126: error renaming while upgrading from TIBCO ActiveMatrix BPM 2.0,2.1 to TIBCO ActiveMatrix BPM 2.2,3.0,3.1.

The error happened at the first step in the upgrade process which is to upgrade the tibcohost. As it was the first step, it is safe to rerun the TCT upgrade. Make sure to follow these steps:

1). Stop the tibcohost, exit all the command prompts and Windows Explorer.

2). Start the tibcohost by double clicking the tibcohost.exe present at <CONFIG_HOME>\tibcohost\<instance name>\host\bin or you can do right click -> Run as administrator. This way the command prompt will be closed when the upgrade script stops the tibcohost. Make sure to exit Windows Explorer.

3). Run the TCT Upgrade TIBCO ActiveMatrix BPM Instance and follow the upgrade steps.

https://docs.tibco.com/pub/amx-bpm/3.1.0/doc/html/bpmhelp/GUID-59B839FA-C87E-4E5C-8112-AC38356BE71E.html