Below is a list of the possible exit codes of the Rhino process.

Rhino Exit Codes

Exit Code Error Action

1

Unspecified error.

See the Rhino and console logs for details.

2

Misconfiguration found while reading a config file. See the Rhino and console logs for details.

Check the config files and fix any problems reported in the logs.

3

Watchdog shutdown

Check the Rhino log for the cause. Most frequently this is caused by system overload or a faulty service.

4

Timeout waiting for normal shutdown to complete

No action required

5

Restart of node requested by management operation

No action required

JVM Exit Codes

The JVM reports a number of exit codes that may be added to from version to version. At the time of writing this they include the following:

Internal JVM Exit Codes

No known exit codes other than 0 (Normal exit)

Signal Handler Exit Codes

Exit codes above 128 occur as a result of the JVM receiving a signal from the OS. These are always a result of either OS process management or a JVM bug that has triggered an OS level protection mechanism. In many cases the console log will have information on the cause. There may also be information in the system log. On Linux these are the following, other OSes differ:

Signal Name Signal Number Exit Code Common causes

HUP

1

129

  • User closed the terminal running Rhino.

  • Operator sent signal to the Rhino process.

INT

2

130

  • Ctrl-C in the terminal running Rhino.

  • Operator sent signal to the Rhino process.

QUIT

3

N/A JVM does not exit.

Operator triggered JVM thread stack dump.

ILL

4

134

JVM Bug

TRAP

5

133

Bug in a debugger attached to the Rhino JVM

ABRT/IOT

6

134

JVM bug

BUS

7(x86) 10(SPARC)

135

JVM bug

FPE

8

134

JVM bug

KILL

9

137

Operator or OS killed the Rhino process (Out of memory or system shutdown)

USR1

10(x86) 30(SPARC)

138

Operator sent a signal to the Rhino process

SEGV

11

134

JVM bug

USR2

12(x86) 31(SPARC)

134

Operator sent a signal to the Rhino process

ALRM

14

142

Native library set an OS alarm timer

TERM

15

143

Operator or OS killed the Rhino process (system shutdown)

STKFLT

16(x86 only)

144

JVM bug

XCPU

24(x86) 30(SPARC)

152

Ulimit on CPU time

VTALRM

26(x86) 28(SPARC)

154

Native library set an OS alarm timer

PROF

27(x86) 29(SPARC)

155

Bug in profiler attached to the Rhino JVM

IO

29(x86) 22(SPARC)

157

Bug in native library performing asynchronous IO

SYS

31(x86) 12(SPARC)

140

Bug in JVM, native library or kernel

Other exit codes

Some libraries may call System.exit() with a code not in this list. We are not aware of any libraries used by Rhino that do this and recommend avoiding any that do when developing services.

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