Here is the content of *detected_start_command*:
$ CF_TRACE=true cf app modules | grep "detected_start_command"
"detected_start_command":
"CALCULATED_MEMORY=$($PWD/.java-buildpack/open_jdk_jre/bin/java-buildpack-memory-calculator-1.1.1_RELEASE
-memorySizes=metaspace:64m..
-memoryWeights=heap:75,metaspace:10,stack:5,native:10
-totMemory=$MEMORY_LIMIT) && $PWD/.java-buildpack/open_jdk_jre/bin/java -cp
$PWD/. -Djava.io.tmpdir=$TMPDIR
-XX:OnOutOfMemoryError=$PWD/.java-buildpack/open_jdk_jre/bin/killjava.sh
$CALCULATED_MEMORY -agentlib:jdwp=transport=dt_socket,address=
192.168.2.8:8000 com.heavenize.osmoze.kernel.HelloHandler",

{"guid":"2dabf3c6-1736-4eb4-9bb7-40dc58bce246","name":"modules","routes":[{"guid":"014f77ed-e450-4209-be23-40e4a8257cfc","host":"modules-rhythmic-uvulatomy","domain":{"guid":"a77afa99-76d6-4f3f-9e07-27775597709f","name":"
10.244.0.34.xip.io
"}}],"running_instances":0,"services":[],"available_domains":[{"guid":"a77afa99-76d6-4f3f-9e07-27775597709f","name":"
10.244.0.34.xip.io
"}],"name":"modules","production":false,"space_guid":"381707f7-88d4-4f6e-bd7c-80d7f0699b0f","stack_guid":"3431865a-f165-4e75-9221-4f418e9de889","buildpack":"
https://github.com/cloudfoundry/java-buildpack","detected_buildpack":null,"environment_json":{"JAVA_OPTS":"$JAVA_OPTS
-agentlib:jdwp=transport=dt_socket,address=192.168.2.8:8000"},"memory":4096,"instances":1,"disk_quota":2048,"state":"STARTED","version":"e8f0e18e-7c09-4143-a17c-83a6e32eed84","command":null,"console":false,"debug":null,"staging_task_id":"1249276465c64c1884d401452d2365af","package_state":"STAGED","health_check_type":"port","health_check_timeout":180,"staging_failed_reason":null,"diego":false,"docker_image":null,"package_updated_at":"2015-06-08T07:56:44Z","detected_start_command":"CALCULATED_MEMORY=$($PWD/.java-buildpack/open_jdk_jre/bin/java-buildpack-memory-calculator-1.1.1_RELEASE
-memorySizes=metaspace:64m..
-memoryWeights=heap:75,metaspace:10,stack:5,native:10
-totMemory=$MEMORY_LIMIT) && $PWD/.java-buildpack/open_jdk_jre/bin/java -cp
$PWD/. -Djava.io.tmpdir=$TMPDIR
-XX:OnOutOfMemoryError=$PWD/.java-buildpack/open_jdk_jre/bin/killjava.sh
$CALCULATED_MEMORY -agentlib:jdwp=transport=dt_socket,address=
192.168.2.8:8000 com.heavenize.osmoze.kernel.HelloHandler"}


On Tue, Jun 9, 2015 at 1:35 PM, Daniel Mikusa <dmikusa(a)pivotal.io> wrote:

On Tue, Jun 9, 2015 at 5:05 AM, Arbi Akhina <arbi.akhina(a)gmail.com>
wrote:

Hi, thanks for the hint, I tried to add to the manifest the following
entry:
command: sleep 2 && java -jar modules.jar

The Java build pack does not put Java on the path, which is what you're
seeing in the error below. I will usually run `CF_TRACE=true cf app
<app-name> | grep "detected_start_command"` which shows the command the
build pack detected and then just copy & paste that into my custom command.

but it looks like it's not appropriate as I see in the logs:
2015-06-08T05:34:03.71+0200 [App/0] ERR bash: java: command not
found

On Mon, Jun 8, 2015 at 6:32 PM, Daniel Mikusa <dmikusa(a)pivotal.io>
wrote:

On Mon, Jun 8, 2015 at 12:03 PM, Arbi Akhina <arbi.akhina(a)gmail.com>
wrote:

I'm trying to push an executable JAR to a bosh-lite instance, on the
logs I see CF trying many times to restart the app and eventually fail.

I can't find out why the app crashes as there is no app logs returned
by CF. I tried to remotely debug the app (as described in [1]) but nothing
happens on eclipse. Any hint to solve this issue is appreciated.

There's a known issue that occurs when an app starts and fails in rapid
succession and results in the log entries being missed. If you add a
couple second pause into the app, it will give the system enough time to
attach the logger and you'll see the output generated by the crashing app.

You can do this with a custom start command `cf push -c 'sleep 2 &&
<normal-cmd>'` or with a `.profile.d` script that sleeps for a couple
seconds.

Dan

1. I'm launching the app with:
*cf push -t 180*

2. Here is the manifest.yml content:
---
applications:
- name: modules
memory: 4G
instances: 1
host: modules-${random-word}
path: modules.jar
buildpack: https://github.com/cloudfoundry/java-buildpack
env:
JAVA_OPTS: "$JAVA_OPTS -agentlib:jdwp=transport=dt_socket,address=
192.168.2.8:8000"

3. Here is the log:
Connecté, le dumping journaux récents pour application modules en org
heavenize / espace dev comme admin...

2015-06-07T12:05:15.69+0200 [API] OUT Created app with guid
1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:05:16.10+0200 [API] OUT Updated app with guid
1fbf3378-6512-46de-bae4-02ee30275464
({"route"=>"68e27d8d-4ff6-443b-a3e0-416c40d325d3"})
2015-06-07T12:12:21.55+0200 [DEA] OUT Got staging request for app
with id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:12:25.40+0200 [API] OUT Updated app with guid
1fbf3378-6512-46de-bae4-02ee30275464 ({"state"=>"STARTED"})
2015-06-07T12:12:38.08+0200 [STG] OUT -----> Downloaded app
package (163M)
2015-06-07T12:13:40.93+0200 [STG] ERR Cloning into
'/tmp/buildpacks/java-buildpack'...
2015-06-07T12:14:01.67+0200 [STG] OUT -----> Java Buildpack
Version: c862ac8 |
https://github.com/cloudfoundry/java-buildpack#c862ac8
2015-06-07T12:14:13.89+0200 [STG] OUT -----> Downloading Open Jdk
JRE 1.8.0_45 from
https://download.run.pivotal.io/openjdk/lucid/x86_64/openjdk-1.8.0_45.tar.gz
(11.6s)
2015-06-07T12:14:15.34+0200 [STG] OUT Expanding Open Jdk
JRE to .java-buildpack/open_jdk_jre (1.4s)
2015-06-07T12:14:15.89+0200 [STG] OUT -----> Downloading Open JDK
Like Memory Calculator 1.1.1_RELEASE from
https://download.run.pivotal.io/memory-calculator/lucid/x86_64/memory-calculator-1.1.1_RELEASE
(0.5s)
2015-06-07T12:14:15.90+0200 [STG] OUT Memory Settings:
-XX:MaxMetaspaceSize=419430K -XX:MetaspaceSize=419430K -Xss1M -Xmx3G -Xms3G
2015-06-07T12:15:43.44+0200 [STG] OUT -----> Uploading droplet
(151M)
2015-06-07T12:16:07.51+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:16:29.66+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"9d55c5f791324d358bffb4c961a4c7ee", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672189}
2015-06-07T12:17:14.18+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:17:31.10+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"2ae0c26f33864f40989ee870a1b9e3db", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672251}
2015-06-07T12:17:38.48+0200 [DEA] OUT Removing crash for app with
id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:17:38.48+0200 [DEA] OUT Stopping app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:17:38.48+0200 [DEA] OUT Stopped app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:17:55.31+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:18:11.82+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"dc872d38f3324af481c82ba67f0e216c", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672291}
2015-06-07T12:18:18.69+0200 [DEA] OUT Removing crash for app with
id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:18:18.69+0200 [DEA] OUT Stopping app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:18:18.69+0200 [DEA] OUT Stopped app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:18:34.06+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:18:50.98+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"623c3af7e3e84801b6fd44eeee9c0a12", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672330}
2015-06-07T12:18:58.80+0200 [DEA] OUT Removing crash for app with
id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:18:58.80+0200 [DEA] OUT Stopping app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:18:58.80+0200 [DEA] OUT Stopped app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:19:34.08+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:19:50.36+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"40727eea293146948af197e13443843c", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672390}
2015-06-07T12:19:59.01+0200 [DEA] OUT Removing crash for app with
id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:19:59.01+0200 [DEA] OUT Stopping app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:19:59.01+0200 [DEA] OUT Stopped app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:21:04.12+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:21:20.61+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"f7ffff55692a418c847f4f37be574ddf", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672480}
2015-06-07T12:21:29.43+0200 [DEA] OUT Removing crash for app with
id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:21:29.43+0200 [DEA] OUT Stopping app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:21:29.47+0200 [DEA] OUT Stopped app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:23:34.16+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:23:49.97+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"4581e97c6b0f4504b8d64a5c69d6787b", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672629}
2015-06-07T12:23:50.29+0200 [DEA] OUT Removing crash for app with
id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:23:50.29+0200 [DEA] OUT Stopping app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:23:50.29+0200 [DEA] OUT Stopped app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:28:14.24+0200 [DEA] OUT Starting app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:28:29.82+0200 [API] OUT App instance exited with
guid 1fbf3378-6512-46de-bae4-02ee30275464 payload:
{"cc_partition"=>"default",
"droplet"=>"1fbf3378-6512-46de-bae4-02ee30275464",
"version"=>"703f793c-e388-41ac-b1f1-c564b301ca70",
"instance"=>"f98749490a6743598f57d3848eb06177", "index"=>0,
"reason"=>"CRASHED", "exit_status"=>-1, "exit_description"=>"failed to
start", "crash_timestamp"=>1433672909}
2015-06-07T12:28:31.73+0200 [DEA] OUT Removing crash for app with
id 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:28:31.73+0200 [DEA] OUT Stopping app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464
2015-06-07T12:28:31.73+0200 [DEA] OUT Stopped app instance (index
0) with guid 1fbf3378-6512-46de-bae4-02ee30275464



[1]
http://docs.cloudfoundry.org/buildpacks/java/java-tips.html#debugging



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