Jack server unable to (re)start

[Naveen Chaudhary]

I am getting the following jack-server error : 

    15:46:17 [ 16% 8051/47793] Ensure Jack server is installed and started

    15:46:17 FAILED: /bin/bash -c "(prebuilts/sdk/tools/jack-admin install-server prebuilts/sdk/tools/jack-launcher.jar prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar  2>&1 || (exit 0) ) && (JACK_SERVER_VM_ARGUMENTS=\"-Dfile.encoding=UTF-8 -XX:+TieredCompilation\" prebuilts/sdk/tools/jack-admin start-server 2>&1 || exit 0 ) && (prebuilts/sdk/tools/jack-admin update server prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar 4.8.ALPHA 2>&1 || exit 0 ) && (prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-2.28.RELEASE.jar 2.28.RELEASE || exit 47; prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-3.36.CANDIDATE.jar 3.36.CANDIDATE || exit 47; prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-4.7.BETA.jar 4.7.BETA || exit 47 )"

    15:46:17 Jack server already installed in "/srv/jenkins/.jack-server"

    15:46:17 Launching Jack server java -XX:MaxJavaStackTraceDepth=-1 -Djava.io.tmpdir=/tmp -Dfile.encoding=UTF-8 -XX:+TieredCompilation -cp /srv/jenkins/.jack-server/launcher.jar com.android.jack.launcher.ServerLauncher

    15:46:17 Jack server failed to (re)start, try 'jack-diagnose' or see Jack server log

    15:46:17 No Jack server running. Try 'jack-admin start-server'

    15:46:17 No Jack server running. Try 'jack-admin start-server'

In the `~/.jack-server/logs/*`, I am not getting any error, its all clean. I tried starting the server manually using `jack-admin start-server`, it hangs for a while (2-3 minutes) with the following line on screen : 

    Launching Jack server java -XX:MaxJavaStackTraceDepth=-1 -Djava.io.tmpdir=/tmp -Dfile.encoding=UTF-8 -XX:+TieredCompilation -cp /srv/jenkins/.jack-server/launcher.jar com.android.jack.launcher.ServerLauncher

and then fails with the same error as above. I tried re-installing and re-starting the server, still same error. I searched the whole internet but none helped. This is my 7th day trying to fix this.I am almost exhausted, so any suggestion will be appreciated.

In the `cat ~/.jack-server/logs/*`, I am getting only 4 lines : 

    02:26:19.589: INFO: com.android.jack.server.JackHttpServer: Starting jack server version: 1.3-a8 '1.3' (291201 fcd657165d2fd6dcf1bf4c3002c9c8f75383e815 by android-...@google.com)

    02:26:19.644: INFO: com.android.jack.server.JackHttpServer: Starting service connection server on /127.0.0.1:8076

    02:26:19.651: INFO: com.android.jack.server.JackHttpServer: Starting admin connection on /127.0.0.1:8077

    02:26:19.858: INFO: com.android.jack.server.JackHttpServer: Start timer

[Colin Cross]

Have you tried jack-diagnose?

We've seen problems on our build servers where a java process gets
stuck in the kernel in a way that causes all future calls to ps -ax to
hang. The jack startup tries to run ps, so the visible symptom is
jack failures. Try running ps -ax, and if that hangs, reboot to clear
the stuck process.

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[Naveen Chaudhary]

I did try

 ps -ax

and it didn't hang for me.

I tried jack-diagnose and this is really mysterious. When I try

 $ ./jack-diagnose

for the first time, it exists with no output on the shell. Then, I did 

$ ./jack-admin start-server

and as described earlier, it hangs me for few minutes (300 seconds to be precise, this time I put log in the jack-admin and it times out everytime) and then it throws the error 

Jack server failed to (re)start, try 'jack-diagnose' or see Jack server log

Now, if I again do 

$ ./jack-diagnose

it gives me the following output on the screen

error: process ID list syntax error


Usage:
 ps [options]


 Try 'ps --help <simple|list|output|threads|misc|all>'
  or 'ps --help <s|l|o|t|m|a>'
 for additional help text.


For more details see ps(1).
Port 8077 is used by another process (pid=), please ensure to free the port or change port configuration in '/srv/jenkins/.jack-settings' and '/srv/jenkins/.jack-server/config.properties'
error: process ID list syntax error


Usage:
 ps [options]


 Try 'ps --help <simple|list|output|threads|misc|all>'
  or 'ps --help <s|l|o|t|m|a>'
 for additional help text.


For more details see ps(1).
Port 8076 is used by another process (pid=), please ensure to free the port or change port configuration in '/srv/jenkins/.jack-settings' and '/srv/jenkins/.jack-server/config.properties'

Now, if the server failed to start, then how it occupied the ports 8076 and 8077?

Secondly, I put logs in the jack-admin code and I am getting curl code 7, until the timeout.

[Naveen Chaudhary]

Moreover, I put more logs and I get the following output : 

Launching Jack server java -XX:MaxJavaStackTraceDepth=-1 -Djava.io.tmpdir=/tmp -Dfile.encoding=UTF-8 -XX:+TieredCompilation -cp /srv/jenkins/.jack-server/launcher.jar com.android.jack.launcher.ServerLauncher

waiting for the server to get started
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (7) Failed to connect to 127.0.0.1 port 8077: No route to host
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (7) Failed to connect to 127.0.0.1 port 8077: No route to host
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (7) Failed to connect to 127.0.0.1 port 8077: No route to host
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (7) Failed to connect to 127.0.0.1 port 8077: No route to host
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (7) Failed to connect to 127.0.0.1 port 8077: No route to host

The machines I am trying to build upon, are behind a corporate firewall. Can some proxies to port restrictions affect this in anyway? 

PS:

I am able to access internet on this machine. I did 

$ ./jack-admin kill-server

and then 

$ curl 120.0.0.1

I get 

curl: (7) Failed to connect to 127.0.0.1 port 80: No route to host

Then I did

$ curl --proxy <proxy-adress>:<port> 127.0.0.1

I got 

<HTML>
<HEAD><TITLE>Redirection</TITLE></HEAD>
<BODY><H1>Redirect</H1></BODY>

On Thursday, August 10, 2017 at 9:58:58 PM UTC+5:30, Naveen Chaudhary wrote:

[Naveen Chaudhary]

Also, I did 

netstat -nlp

and I can see 

tcp6       0      0 127.0.0.1:8076          :::*                    LISTEN      4917/java      
tcp6       0      0 127.0.0.1:8077          :::*                    LISTEN      4917/java

which means the server has started. The only problem seems to be the connection and thus the curl replies with error code 7.

On Thursday, August 10, 2017 at 9:58:58 PM UTC+5:30, Naveen Chaudhary wrote: