Re: [ptp-user] Issue with remote C++ development using PTP

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Re: [ptp-user] Issue with remote C++ development using PTP

From: LAVERGNE Julien <julien.lavergne@xxxxxxxxx>
Date: Fri, 28 Jun 2013 15:36:26 +0800
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Thread-topic: [ptp-user] Issue with remote C++ development using PTP

Kill -3 give me following stack:

Looks like it is waiting for a lock. I have no idea yet why it is doing this.

DStore Server Starting...

Server Started Successfully

4033

Server running on: srxhkgmadev02

Exception in thread "Thread-1899" java.lang.NullPointerException

at org.eclipse.dstore.core.model.DataElement.initialize(DataElement.java:1606)

at org.eclipse.dstore.core.model.DataElement.initialize(DataElement.java:1553)

at org.eclipse.dstore.core.model.DataElement.reInit(DataElement.java:262)

at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1369)

at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1299)

at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1269)

at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1234)

at org.eclipse.rse.internal.dstore.universal.miners.filesystem.UniversalDownloadHandler.handleDownload(UniversalDownloadHandler.java:275)

at org.eclipse.rse.internal.dstore.universal.miners.filesystem.UniversalDownloadHandler.run(UniversalDownloadHandler.java:67)

2013-06-28 15:33:05

Full thread dump Java HotSpot(TM) 64-Bit Server VM (23.25-b01 mixed mode):

"Thread-10" prio=10 tid=0x00002aaab4250800 nid=0x22f1 in Object.wait() [0x0000000043527000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e001a440> (a org.eclipse.ptp.internal.remote.rse.core.miners.SpawnerMiner)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e001a440> (a org.eclipse.ptp.internal.remote.rse.core.miners.SpawnerMiner)

at org.eclipse.dstore.core.miners.Miner.waitForInput(Miner.java:688)

- locked <0x00000000e001a440> (a org.eclipse.ptp.internal.remote.rse.core.miners.SpawnerMiner)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"Thread-9" prio=10 tid=0x00002aaab41ce000 nid=0x22f0 in Object.wait() [0x0000000043326000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e004c128> (a org.eclipse.ptp.internal.rdt.core.miners.CDTMiner)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e004c128> (a org.eclipse.ptp.internal.rdt.core.miners.CDTMiner)

at org.eclipse.dstore.core.miners.Miner.waitForInput(Miner.java:688)

- locked <0x00000000e004c128> (a org.eclipse.ptp.internal.rdt.core.miners.CDTMiner)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"Thread-8" prio=10 tid=0x00002aaab41b8800 nid=0x22ef in Object.wait() [0x0000000043125000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e00549d8> (a org.eclipse.rse.dstore.universal.miners.CommandMiner)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e00549d8> (a org.eclipse.rse.dstore.universal.miners.CommandMiner)

at org.eclipse.dstore.core.miners.Miner.waitForInput(Miner.java:688)

- locked <0x00000000e00549d8> (a org.eclipse.rse.dstore.universal.miners.CommandMiner)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"Thread-7" prio=10 tid=0x00002aaab41ab800 nid=0x22ee in Object.wait() [0x0000000042f24000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e0060550> (a org.eclipse.rse.dstore.universal.miners.EnvironmentMiner)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e0060550> (a org.eclipse.rse.dstore.universal.miners.EnvironmentMiner)

at org.eclipse.dstore.core.miners.Miner.waitForInput(Miner.java:688)

- locked <0x00000000e0060550> (a org.eclipse.rse.dstore.universal.miners.EnvironmentMiner)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"process reaper" daemon prio=10 tid=0x00002aaab41aa000 nid=0x22ec waiting on condition [0x0000000040aa6000]

java.lang.Thread.State: TIMED_WAITING (parking)

at sun.misc.Unsafe.park(Native Method)

- parking to wait for <0x00000000e00607c8> (a java.util.concurrent.SynchronousQueue$TransferStack)

at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)

at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Unknown Source)

at java.util.concurrent.SynchronousQueue$TransferStack.transfer(Unknown Source)

at java.util.concurrent.SynchronousQueue.poll(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

"Thread-6" prio=10 tid=0x00002aaab418a000 nid=0x22e8 in Object.wait() [0x0000000042d23000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e0060bf0> (a org.eclipse.rse.dstore.universal.miners.UniversalProcessMiner)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e0060bf0> (a org.eclipse.rse.dstore.universal.miners.UniversalProcessMiner)

at org.eclipse.dstore.core.miners.Miner.waitForInput(Miner.java:688)

- locked <0x00000000e0060bf0> (a org.eclipse.rse.dstore.universal.miners.UniversalProcessMiner)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"Thread-5" prio=10 tid=0x00002aaab4198000 nid=0x22e7 in Object.wait() [0x0000000042b22000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e006e398> (a org.eclipse.rse.dstore.universal.miners.UniversalFileSystemMiner)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e006e398> (a org.eclipse.rse.dstore.universal.miners.UniversalFileSystemMiner)

at org.eclipse.dstore.core.miners.Miner.waitForInput(Miner.java:688)

- locked <0x00000000e006e398> (a org.eclipse.rse.dstore.universal.miners.UniversalFileSystemMiner)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"Thread-4" prio=10 tid=0x000000000d5a6800 nid=0x22e6 waiting on condition [0x0000000042921000]

java.lang.Thread.State: TIMED_WAITING (sleeping)

at java.lang.Thread.sleep(Native Method)

at org.eclipse.dstore.internal.core.util.DataElementRemover.run(DataElementRemover.java:234)

"DestroyJavaVM" prio=10 tid=0x00002aaab416e800 nid=0x22d5 waiting on condition [0x0000000000000000]

java.lang.Thread.State: RUNNABLE

"DStore CommandHandlerThread-0" prio=10 tid=0x00002aaab4169000 nid=0x22e4 in Object.wait() [0x0000000041505000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e00d1e70> (a org.eclipse.dstore.internal.core.server.ServerCommandHandler)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e00d1e70> (a org.eclipse.dstore.internal.core.server.ServerCommandHandler)

at org.eclipse.dstore.core.model.CommandHandler.waitForInput(CommandHandler.java:292)

- locked <0x00000000e00d1e70> (a org.eclipse.dstore.internal.core.server.ServerCommandHandler)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"DStore UpdateHandlerThread-1" prio=10 tid=0x00002aaab416d000 nid=0x22e3 in Object.wait() [0x0000000041304000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e00d62b8> (a org.eclipse.dstore.internal.core.server.ServerUpdateHandler)

at java.lang.Object.wait(Object.java:503)

at org.eclipse.dstore.core.model.Handler.waitForInput(Handler.java:147)

- locked <0x00000000e00d62b8> (a org.eclipse.dstore.internal.core.server.ServerUpdateHandler)

at org.eclipse.dstore.core.model.UpdateHandler.waitForInput(UpdateHandler.java:215)

- locked <0x00000000e00d62b8> (a org.eclipse.dstore.internal.core.server.ServerUpdateHandler)

at org.eclipse.dstore.internal.core.server.ServerUpdateHandler.waitForInput(ServerUpdateHandler.java:470)

- locked <0x00000000e00d62b8> (a org.eclipse.dstore.internal.core.server.ServerUpdateHandler)

at org.eclipse.dstore.core.model.Handler.run(Handler.java:133)

"DStore ReceiverThread-2" prio=10 tid=0x00002aaab416c800 nid=0x22e2 runnable [0x0000000040a7e000]

java.lang.Thread.State: RUNNABLE

at java.net.SocketInputStream.socketRead0(Native Method)

at java.net.SocketInputStream.read(Unknown Source)

at java.io.BufferedInputStream.fill(Unknown Source)

at java.io.BufferedInputStream.read(Unknown Source)

- locked <0x00000000e00d7678> (a java.io.BufferedInputStream)

at org.eclipse.dstore.internal.core.util.XMLparser.readLine(XMLparser.java:394)

at org.eclipse.dstore.internal.core.util.XMLparser.parseDocument(XMLparser.java:569)

at org.eclipse.dstore.core.util.Receiver.handleInput(Receiver.java:155)

at org.eclipse.dstore.core.util.Receiver.run(Receiver.java:127)

"Service Thread" daemon prio=10 tid=0x000000000d33c800 nid=0x22e0 runnable [0x0000000000000000]

java.lang.Thread.State: RUNNABLE

"C2 CompilerThread1" daemon prio=10 tid=0x000000000d33a800 nid=0x22df waiting on condition [0x0000000000000000]

java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" daemon prio=10 tid=0x000000000d32e800 nid=0x22de waiting on condition [0x0000000000000000]

java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" daemon prio=10 tid=0x000000000d32c800 nid=0x22dd waiting on condition [0x0000000000000000]

java.lang.Thread.State: RUNNABLE

"Finalizer" daemon prio=10 tid=0x000000000d2dd800 nid=0x22dc in Object.wait() [0x000000004231e000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e0010948> (a java.lang.ref.ReferenceQueue$Lock)

at java.lang.ref.ReferenceQueue.remove(Unknown Source)

- locked <0x00000000e0010948> (a java.lang.ref.ReferenceQueue$Lock)

at java.lang.ref.ReferenceQueue.remove(Unknown Source)

at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)

"Reference Handler" daemon prio=10 tid=0x000000000d2db800 nid=0x22db in Object.wait() [0x000000004211d000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0x00000000e00106c0> (a java.lang.ref.Reference$Lock)

at java.lang.Object.wait(Object.java:503)

at java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)

- locked <0x00000000e00106c0> (a java.lang.ref.Reference$Lock)

"VM Thread" prio=10 tid=0x000000000d2d4000 nid=0x22da runnable

"GC task thread#0 (ParallelGC)" prio=10 tid=0x000000000d259800 nid=0x22d6 runnable

"GC task thread#1 (ParallelGC)" prio=10 tid=0x000000000d25b000 nid=0x22d7 runnable

"GC task thread#2 (ParallelGC)" prio=10 tid=0x000000000d25d000 nid=0x22d8 runnable

"GC task thread#3 (ParallelGC)" prio=10 tid=0x000000000d25f000 nid=0x22d9 runnable

"VM Periodic Task Thread" prio=10 tid=0x000000000d347000 nid=0x22e1 waiting on condition

JNI global references: 139

Heap

PSYoungGen total 167296K, used 23168K [0x00000000f5560000, 0x0000000100000000, 0x0000000100000000)

eden space 160128K, 14% used [0x00000000f5560000,0x00000000f6c00028,0x00000000ff1c0000)

from space 7168K, 0% used [0x00000000ff900000,0x00000000ff900000,0x0000000100000000)

to space 7296K, 0% used [0x00000000ff1c0000,0x00000000ff1c0000,0x00000000ff8e0000)

ParOldGen total 349568K, used 9787K [0x00000000e0000000, 0x00000000f5560000, 0x00000000f5560000)

object space 349568K, 2% used [0x00000000e0000000,0x00000000e098ef98,0x00000000f5560000)

PSPermGen total 21248K, used 9066K [0x00000000dae00000, 0x00000000dc2c0000, 0x00000000e0000000)

object space 21248K, 42% used [0x00000000dae00000,0x00000000db6dab08,0x00000000dc2c0000)

From: ptp-user-bounces@xxxxxxxxxxx [mailto:ptp-user-bounces@xxxxxxxxxxx] On Behalf Of Chris Recoskie
Sent: Wednesday, June 19, 2013 11:08 PM
To: PTP User list
Cc: PTP User list; ptp-user-bounces@xxxxxxxxxxx
Subject: Re: [ptp-user] Issue with remote C++ development using PTP

If you send a kill -6 to the server, it should generate a javacore file that will give you a full stack trace of where it is hung.

===========================
Chris Recoskie
Team Lead, IBM CDT and RDT
IBM Toronto

Greg Watson ---06/19/2013 08:39:04 AM---I did a quick search of RDT bugs and couldn't find any that matched this. I would suggest opening a

From: Greg Watson <g.watson@xxxxxxxxxxxx>
To: PTP User list <ptp-user@xxxxxxxxxxx>
Date: 06/19/2013 08:39 AM
Subject: Re: [ptp-user] Issue with remote C++ development using PTP
Sent by: ptp-user-bounces@xxxxxxxxxxx

I did a quick search of RDT bugs and couldn't find any that matched this. I would suggest opening a bug as it looks like something is not implemented correctly.

Regards,
Greg

On Jun 18, 2013, at 11:45 PM, LAVERGNE Julien <julien.lavergne@xxxxxxxxx> wrote:

Hi,

It has been few days I am trying to get my C++ environment working and I am facing some issues.
Basically, I am trying to develop my Linux project on Windows. I would like the indexer to parse my includes on the Linux machine to get auto-completion in Eclipse on Windows.
I also would like to launch a build remotely. Later probably remote debugging as well.

Here is my setup:

Windows 7 development machine:
Java 1.7u25
Eclipse Juno 4.2.2
CDT 8.1.2
PTP 6.0.5
RSE 3.5.0

Linux machine:
Java 1.7u25
Linux Red Hat 5.8 x86_64, 2.6.18-308.el5
RDT server 6.0.5

So as you can see, I would like to use RSE over Remote tools because from what I understood, it is recommended.

After declaring my Remote System and starting rdt server and the Linux machine, I am able to browse remote file.
I am also able to create a Remote C++ Project, choosing RSE as provider and targeting a remote directory. I choose Remote Linux Gcc Tool Chain as my remote build service.

Because my remote folder is not empty, the first thing I am doing after creating my project is a Refresh. The refresh is ok.
Then the C/C++ Indexer starts and my issues comes with it.

My Indexing service is RSE C/C++ Indexing Service. The indexing hang in the middle of the process after an exception has been raised on the rdt server side:

Exception in thread "Thread-1597" java.lang.NullPointerException
at org.eclipse.dstore.core.model.DataElement.initialize(DataElement.java:1606)
at org.eclipse.dstore.core.model.DataElement.initialize(DataElement.java:1553)
at org.eclipse.dstore.core.model.DataElement.reInit(DataElement.java:262)
at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1369)
at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1299)
at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1269)
at org.eclipse.dstore.core.model.DataStore.createObject(DataStore.java:1234)
at org.eclipse.rse.internal.dstore.universal.miners.filesystem.UniversalDownloadHandler.handleDownload(UniversalDownloadHandler.java:275)
at org.eclipse.rse.internal.dstore.universal.miners.filesystem.UniversalDownloadHandler.run(UniversalDownloadHandler.java:67)

After this exception, the rdt server become unresponsive and nothing can be done until I kill Eclipse process and restart rdt-server.

If I take a look at my .eclipse/RSE/rsecomm.log on my Linux machine, I have a nice 50Mb file showing a lot of unresolved inclusion (that’s not the issue for now). At some point, it is reporting a different error:

INFO Thread-5: C_QUERY_GET_REMOTE_OBJECT:DataElement
{
Type: Indexer: Unresolved inclusion: "x.h" in file: /a/b/c.cpp:21
Name: /a
Value: /a
ID: 1125774855
Source: /a
Depth: 1
DataStore: server_host
}

---------------------------------------------------------------
ERROR UniversalFileSystemMiner: Invalid query type to handleQueryGetRemoteObject

My eclipse workspace log file in .metadata/.log didn’t report anything special.

I tried to deactivate the C/C++ Indexer. After that, I able to launch my remote build. The build is working file, except that at the end of the build, the NullPointerException comes again on rdt-server side and rsecomm.log start logging the same kind of message as before.

Do you have any idea of what could be the cause of such an issue ? For now, as soon as I try to do something, it causes the rdt-server to crash and force me to restart it and kill my eclipse process (because eclipse wont exit because it is unable to save the project).

Do you know a way to find the root cause of this issue, by enabling a higher level of logging for example ?

Regards,

Julien

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References:
- [ptp-user] Issue with remote C++ development using PTP
  - From: LAVERGNE Julien
- Re: [ptp-user] Issue with remote C++ development using PTP
  - From: Greg Watson
- Re: [ptp-user] Issue with remote C++ development using PTP
  - From: Chris Recoskie

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