We set `dumppath` in `-XX:FlightRecorderOptions` or `JFR.configure dumppath` jcmd when we want to set emergency dump path. However they do not afffect.
### -XX:FlightRecorderOptions
```
$ java -XX:FlightRecorderOptions=dumppath=`pwd` -XX:StartFlightRecording -Xlog:exceptions=info --version
[0.032s][info][exceptions] Exception <a 'java/lang/IllegalArgumentException'{0x00000007470163b8}: Unknown argument 'dumppath' in diagnostic command.> (0x00000007470163b8)
thrown [open/src/hotspot/share/services/diagnosticFramework.cpp, line 215]
for thread 0x00007f4f700236a0
[0.033s][error][arguments ] Unknown argument 'dumppath' in diagnostic command.
Error occurred during initialization of VM
Failure when starting JFR on_create_vm_2
```
### jcmd
`jcmd` shows the configuration change was succeeded, but it would not affect.
```
$ jcmd 1046 JFR.configure dumppath=/tmp
1046:
Dump path: /tmp
```
### -XX:FlightRecorderOptions
```
$ java -XX:FlightRecorderOptions=dumppath=`pwd` -XX:StartFlightRecording -Xlog:exceptions=info --version
[0.032s][info][exceptions] Exception <a 'java/lang/IllegalArgumentException'{0x00000007470163b8}: Unknown argument 'dumppath' in diagnostic command.> (0x00000007470163b8)
thrown [open/src/hotspot/share/services/diagnosticFramework.cpp, line 215]
for thread 0x00007f4f700236a0
[0.033s][error][arguments ] Unknown argument 'dumppath' in diagnostic command.
Error occurred during initialization of VM
Failure when starting JFR on_create_vm_2
```
### jcmd
`jcmd` shows the configuration change was succeeded, but it would not affect.
```
$ jcmd 1046 JFR.configure dumppath=/tmp
1046:
Dump path: /tmp
```
- csr for
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JDK-8275314 Add dumppath to -XX:FlightRecorderOptions
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- Closed
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- relates to
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JDK-8275373 JFR tests failing: IllegalStateException: Flight Recorder is not supported on this VM
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- Closed
-
-
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- Closed
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JDK-8270091 The path of JFR emergency dump should be able to specified by the user
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- Closed
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-
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- Closed
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(2 links to)