[omniORB] [help] [beginner] cannot run naming service examples
from python chapter 2 "The Basics"
Alistair Bayley
alistair at abayley.org
Thu Aug 25 11:41:44 BST 2011
>> omniNames is configured in a fishy way:
>>
>> It is publishing endpoints localhost:2808 and 172.30.135.150:2809. We
>> can't tell from the IOR exactly how it is listening on those endpoints,
>> but my guess is that it is bound specifically to localhost on port 2808
>> and 172.30.135.150 on port 2809, meaning that when your client tries to
>> connect to localhost:2809, the connection is rejected.
>>
>> How is omniNames invoked? if you haven't done anything to it, I suspect
>> there's a bug in the Ubuntu package.
I've removed all omniorb packages I could find (including
libomniorb4-1) and reinstalled. The /etc/omniORB4.cfg file was not
removed when the packages were removed, so I deleted it manually.
Nothing in the installed packagws seems to provide it, although
apt-file claims it is in libomniorb4-1.
omniNames is not given any interesting arguments:
/etc$ ps -ef | grep omni
root 29609 1 0 10:28 ? 00:00:00 /usr/bin/omniNames
-errlog /var/log/omniorb4-nameserver.log
abayley 29640 12712 0 10:31 pts/4 00:00:00 grep --color=auto omni
I have this in /etc/omniORB4.cfg:
#InitRef = NameService=corbaloc::localhost:2809/NameService
#DefaultInitRef = corbaloc::
With that omniORB4.cfg, I have this IOR:
~$ catior IOR:010000002b00000049444c3a6f6d672e6f72672f436f734e616d696e672f4e616d696e67436f6e746578744578743a312e300000010000000000000074000000010102000f0000003137322e33302e3133352e3135300000f90a00000b0000004e616d6553657276696365000300000000000000080000000100000000545441010000001c000000010000000100010001000000010001050901010001000000090101000354544108000000a027434e01003e99
Type ID: "IDL:omg.org/CosNaming/NamingContextExt:1.0"
Profiles:
1. IIOP 1.2 172.30.135.150 2809 "NameService"
TAG_ORB_TYPE omniORB
TAG_CODE_SETS char native code set: ISO-8859-1
char conversion code set: UTF-8
wchar native code set: UTF-16
wchar conversion code set: UTF-16
TAG_OMNIORB_PERSISTENT_ID a027434e01003e99
And here is the test output:
~/omniorb$ sudo python server2.py -ORBtraceLevel 40
omniORB: Read from configuration file "/etc/omniORB4.cfg".
omniORB: Version: 4.1.2
omniORB: Distribution date: Thu Feb 14 14:19:08 GMT 2008 dgrisby
omniORB: My addresses are:
omniORB: 127.0.0.1
omniORB: 172.30.135.150
omniORB: 172.16.180.1
omniORB: ::1
omniORB: Maximum supported GIOP version is 1.2
omniORB: Native char code sets: ISO-8859-1 UTF-8.
omniORB: Transmission char code sets: ISO-8859-1(1.2) ISO-8859-1(1.1)
ISO-8859-1(1.0) UTF-8(1.2) UTF-8(1.1).
omniORB: Native wide char code sets: UTF-16.
omniORB: Transmission wide char code sets: UTF-16(1.2).
omniORB: Information: the omniDynamic library is not linked.
omniORB: Current configuration is as follows:
omniORB: DefaultInitRef (file) =
omniORB: DefaultInitRef (args) =
omniORB: abortOnInternalError = 0
omniORB: abortOnNativeException = 0
omniORB: acceptBiDirectionalGIOP = 0
omniORB: acceptMisalignedTcIndirections = 0
omniORB: bootstrapAgentHostname =
omniORB: bootstrapAgentPort = 900
omniORB: clientCallTimeOutPeriod = 0
omniORB: clientConnectTimeOutPeriod = 0
omniORB: clientTransportRule = * unix,ssl,tcp
omniORB: configFile = /etc/omniORB4.cfg
omniORB: connectionWatchImmediate = 0
omniORB: connectionWatchPeriod = 50000
omniORB: copyValuesInLocalCalls = 1
omniORB: diiThrowsSysExceptions = 0
omniORB: dumpConfiguration = 0
omniORB: endPoint = giop:tcp::
omniORB: endPointPublish = addr
omniORB: giopMaxMsgSize = 2097152
omniORB: giopTargetAddressMode = KeyAddr
omniORB: id = omniORB4
omniORB: idleThreadTimeout = 10
omniORB: immediateAddressSwitch = 0
omniORB: inConScanPeriod = 180
omniORB: lcdMode = 0
omniORB: maxGIOPConnectionPerServer = 5
omniORB: maxGIOPVersion = 1.2
omniORB: maxInterleavedCallsPerConnection = 5
omniORB: maxServerThreadPerConnection = 100
omniORB: maxServerThreadPoolSize = 100
omniORB: maxSocketRecv = 2147483647
omniORB: maxSocketSend = 2147483647
omniORB: nativeCharCodeSet = ISO-8859-1
omniORB: nativeWCharCodeSet = UTF-16
omniORB: objectTableSize = 0
omniORB: offerBiDirectionalGIOP = 0
omniORB: oneCallPerConnection = 1
omniORB: outConScanPeriod = 120
omniORB: poaHoldRequestTimeout = 0
omniORB: poaUniquePersistentSystemIds = 1
omniORB: principal = [Null]
omniORB: resetTimeOutOnRetries = 0
omniORB: scanGranularity = 5
omniORB: serverCallTimeOutPeriod = 0
omniORB: serverTransportRule = * unix,ssl,tcp
omniORB: socketSendBuffer = -1
omniORB: strictIIOP = 1
omniORB: supportBootstrapAgent = 0
omniORB: supportCurrent = 1
omniORB: supportPerThreadTimeOut = 0
omniORB: tcAliasExpand = 0
omniORB: threadPerConnectionLowerLimit = 9000
omniORB: threadPerConnectionPolicy = 1
omniORB: threadPerConnectionUpperLimit = 10000
omniORB: threadPoolWatchConnection = 1
omniORB: traceExceptions = 1
omniORB: traceFile = [stderr]
omniORB: traceInvocationReturns = 0
omniORB: traceInvocations = 0
omniORB: traceLevel = 40
omniORB: traceThreadId = 0
omniORB: traceTime = 0
omniORB: unixTransportDirectory = /tmp/omni-%u
omniORB: unixTransportPermission = 777
omniORB: useTypeCodeIndirections = 1
omniORB: verifyObjectExistsAndType = 1
omniORB: omniORBpy distribution date: Thu Feb 14 14:20:23 GMT 2008 dgrisby
omniORB: Initialising incoming endpoints.
omniORB: Instantiate endpoint 'giop:tcp::0'
omniORB: Python thread state scavenger start.
omniORB: Bind to address 0.0.0.0
omniORB: Publish specification: 'addr'
omniORB: Try to publish 'addr' for endpoint giop:tcp:172.30.135.150:42046
omniORB: Publish endpoint 'giop:tcp:172.30.135.150:42046'
omniORB: Starting serving incoming endpoints.
omniORB: AsyncInvoker: thread id = 2 has started. Total threads = 1
omniORB: giopRendezvouser task execute for giop:tcp:172.30.135.150:42046
omniORB: Adding root<0> (activating) to object table.
omniORB: State root<0> (activating) -> active
omniORB: Creating ref to local: root<0>
target id : IDL:omg.org/CORBA/Object:1.0
most derived id: IDL:Example/Echo:1.0
omniORB: Creating Python ref to local: root<0>
target id : IDL:Example/Echo:1.0
most derived id: IDL:Example/Echo:1.0
omniORB: ObjRef(IDL:Example/Echo:1.0) -- deleted.
omniORB: throw NO_RESOURCES from initRefs.cc:699
(NO,NO_RESOURCES_InitialRefNotFound)
Traceback (most recent call last):
File "server2.py", line 21, in <module>
obj = orb.resolve_initial_references("NameService")
File "/usr/lib/python2.6/dist-packages/omniORB/CORBA.py", line 566,
in resolve_initial_references
return _omnipy.orb_func.resolve_initial_references(self, identifier)
omniORB.CORBA.NO_RESOURCES:
CORBA.NO_RESOURCES(omniORB.NO_RESOURCES_InitialRefNotFound,
CORBA.COMPLETED_NO)
omniORB: ObjRef(IDL:Example/Echo:1.0) -- deleted.
omniORB: ORB not destroyed; no final clean-up.
If I uncomment the two lines in omniORB4.cfg, I get this test output:
~/omniorb$ sudo python server2.py -ORBtraceLevel 40
omniORB: Read from configuration file "/etc/omniORB4.cfg".
omniORB: Version: 4.1.2
omniORB: Distribution date: Thu Feb 14 14:19:08 GMT 2008 dgrisby
omniORB: My addresses are:
omniORB: 127.0.0.1
omniORB: 172.30.135.150
omniORB: 172.16.180.1
omniORB: ::1
omniORB: Maximum supported GIOP version is 1.2
omniORB: Native char code sets: ISO-8859-1 UTF-8.
omniORB: Transmission char code sets: ISO-8859-1(1.2) ISO-8859-1(1.1)
ISO-8859-1(1.0) UTF-8(1.2) UTF-8(1.1).
omniORB: Native wide char code sets: UTF-16.
omniORB: Transmission wide char code sets: UTF-16(1.2).
omniORB: Information: the omniDynamic library is not linked.
omniORB: Current configuration is as follows:
omniORB: DefaultInitRef (file) = corbaloc::
omniORB: DefaultInitRef (args) =
omniORB: InitRef = NameService=corbaloc::localhost:2809/NameService
omniORB: abortOnInternalError = 0
omniORB: abortOnNativeException = 0
omniORB: acceptBiDirectionalGIOP = 0
omniORB: acceptMisalignedTcIndirections = 0
omniORB: bootstrapAgentHostname =
omniORB: bootstrapAgentPort = 900
omniORB: clientCallTimeOutPeriod = 0
omniORB: clientConnectTimeOutPeriod = 0
omniORB: clientTransportRule = * unix,ssl,tcp
omniORB: configFile = /etc/omniORB4.cfg
omniORB: connectionWatchImmediate = 0
omniORB: connectionWatchPeriod = 50000
omniORB: copyValuesInLocalCalls = 1
omniORB: diiThrowsSysExceptions = 0
omniORB: dumpConfiguration = 0
omniORB: endPoint = giop:tcp::
omniORB: endPointPublish = addr
omniORB: giopMaxMsgSize = 2097152
omniORB: giopTargetAddressMode = KeyAddr
omniORB: id = omniORB4
omniORB: idleThreadTimeout = 10
omniORB: immediateAddressSwitch = 0
omniORB: inConScanPeriod = 180
omniORB: lcdMode = 0
omniORB: maxGIOPConnectionPerServer = 5
omniORB: maxGIOPVersion = 1.2
omniORB: maxInterleavedCallsPerConnection = 5
omniORB: maxServerThreadPerConnection = 100
omniORB: maxServerThreadPoolSize = 100
omniORB: maxSocketRecv = 2147483647
omniORB: maxSocketSend = 2147483647
omniORB: nativeCharCodeSet = ISO-8859-1
omniORB: nativeWCharCodeSet = UTF-16
omniORB: objectTableSize = 0
omniORB: offerBiDirectionalGIOP = 0
omniORB: oneCallPerConnection = 1
omniORB: outConScanPeriod = 120
omniORB: poaHoldRequestTimeout = 0
omniORB: poaUniquePersistentSystemIds = 1
omniORB: principal = [Null]
omniORB: resetTimeOutOnRetries = 0
omniORB: scanGranularity = 5
omniORB: serverCallTimeOutPeriod = 0
omniORB: serverTransportRule = * unix,ssl,tcp
omniORB: socketSendBuffer = -1
omniORB: strictIIOP = 1
omniORB: supportBootstrapAgent = 0
omniORB: supportCurrent = 1
omniORB: supportPerThreadTimeOut = 0
omniORB: tcAliasExpand = 0
omniORB: threadPerConnectionLowerLimit = 9000
omniORB: threadPerConnectionPolicy = 1
omniORB: threadPerConnectionUpperLimit = 10000
omniORB: threadPoolWatchConnection = 1
omniORB: traceExceptions = 1
omniORB: traceFile = [stderr]
omniORB: traceInvocationReturns = 0
omniORB: traceInvocations = 0
omniORB: traceLevel = 40
omniORB: traceThreadId = 0
omniORB: traceTime = 0
omniORB: unixTransportDirectory = /tmp/omni-%u
omniORB: unixTransportPermission = 777
omniORB: useTypeCodeIndirections = 1
omniORB: verifyObjectExistsAndType = 1
omniORB: omniORBpy distribution date: Thu Feb 14 14:20:23 GMT 2008 dgrisby
omniORB: Initialising incoming endpoints.
omniORB: Instantiate endpoint 'giop:tcp::0'
omniORB: Python thread state scavenger start.
omniORB: Bind to address 0.0.0.0
omniORB: Publish specification: 'addr'
omniORB: Try to publish 'addr' for endpoint giop:tcp:172.30.135.150:40859
omniORB: Publish endpoint 'giop:tcp:172.30.135.150:40859'
omniORB: Starting serving incoming endpoints.
omniORB: AsyncInvoker: thread id = 2 has started. Total threads = 1
omniORB: giopRendezvouser task execute for giop:tcp:172.30.135.150:40859
omniORB: Adding root<0> (activating) to object table.
omniORB: State root<0> (activating) -> active
omniORB: Creating ref to local: root<0>
target id : IDL:omg.org/CORBA/Object:1.0
most derived id: IDL:Example/Echo:1.0
omniORB: Creating Python ref to local: root<0>
target id : IDL:Example/Echo:1.0
most derived id: IDL:Example/Echo:1.0
omniORB: ObjRef(IDL:Example/Echo:1.0) -- deleted.
omniORB: Creating ref to remote: key<NameService>
target id : IDL:omg.org/CORBA/Object:1.0
most derived id:
omniORB: Initial reference `NameService' resolved from configuration file.
omniORB: Creating Python ref to remote: key<NameService>
target id : IDL:omg.org/CORBA/Object:1.0
most derived id:
omniORB: AsyncInvoker: thread id = 3 has started. Total threads = 2
omniORB: Client attempt to connect to giop:tcp:localhost:2809
omniORB: Scavenger task execute.
omniORB: Switch rope to use address giop:tcp:localhost:2809
omniORB: Unable to open new connection: giop:tcp:localhost:2809
omniORB: throw giopStream::CommFailure from
giopStream.cc:1148(0,NO,TRANSIENT_ConnectFailed)
omniORB: throw TRANSIENT from omniObjRef.cc:789 (NO,TRANSIENT_ConnectFailed)
Traceback (most recent call last):
File "server2.py", line 22, in <module>
rootContext = obj._narrow(CosNaming.NamingContext)
File "/usr/lib/python2.6/dist-packages/omniORB/CORBA.py", line 787, in _narrow
return _omnipy.narrow(self, repoId, 1)
omniORB.CORBA.TRANSIENT:
CORBA.TRANSIENT(omniORB.TRANSIENT_ConnectFailed, CORBA.COMPLETED_NO)
omniORB: ObjRef(IDL:Example/Echo:1.0) -- deleted.
omniORB: omniRemoteIdentity deleted.
omniORB: ObjRef() -- deleted.
omniORB: omniRemoteIdentity deleted.
omniORB: ObjRef() -- deleted.
omniORB: ORB not destroyed; no final clean-up.
I'm not sure how /etc/omniORB4.cfg should look. I notice that the IOR
written to /var/log/omniorb4-nameserver.log is the same for both tests
(i.e. uncommenting the two lines in omniORB4.cfg doesn't change the
IOR, where I presume the ports and addresses are encoded).
Thanks,
Alistair
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