jestan

wrapper.disable_restarts=TRUE 
wrapper.java.additional.1=-agentpath:/home/nirojan/programs/JProfiler/jprofiler8/bin/linux-x64/libjprofilerti.so=port=8849,nowait
wrapper.java.additional.1.stripquotes=TRUE

jestan

[INFO] 
[INFO] --- scala-maven-plugin:3.1.0:compile (default) @ appstore ---
[INFO] /home/jestan/development/scala-vaadin/src/main/java:-1: info: compiling
[INFO] /home/jestan/development/scala-vaadin/src/main/scala:-1: info: compiling
[INFO] Compiling 12 source files to /home/nirojan/development/appstore-web/appstore/target/classes at 1359435193728
[ERROR] error: 
[INFO]      while compiling: /home/jestan/development/scala-vaadin/src/main/scala/web/filters/MongoConnectionFilter.scala
[INFO]         during phase: jvm
[INFO]      library version: version 2.10.0
[INFO]     compiler version: version 2.10.0

jestan

MAP Protocol Error Codes

Generic errors

34 System failure

35 Data Missing

36 Unexpected Data Value

21 Facility Not Supported

jestan

Fri Dec  7 19:17:56 Backtrace:
0xaf8c41 0x5586c9 0x7f6cb4e094c0 0x7f6cb4e09445 0x7f6cb4e0cbab 0xb45dbb 0xb4414c 0xb443bb 0xb449cb 0xb56f6a 0xb57265 0xb5727e 0x7f6cb5bafc83 0x7f6cb5bafea8 0x7f6cb4ec54bd 
 mongod(_ZN5mongo15printStackTraceERSo+0x21) [0xaf8c41]
 mongod(_ZN5mongo10abruptQuitEi+0x399) [0x5586c9]
 /lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f6cb4e094c0]
 /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x35) [0x7f6cb4e09445]
 /lib/x86_64-linux-gnu/libc.so.6(abort+0x17b) [0x7f6cb4e0cbab]
 mongod(_ZN8tcmalloc3LogENS_7LogModeEPKciNS_7LogItemES3_S3_S3_+0x20b) [0xb45dbb]
 mongod(_ZN8tcmalloc15CentralFreeList14ReleaseToSpansEPv+0x12c) [0xb4414c]
 mongod(_ZN8tcmalloc15CentralFreeList18ReleaseListToSpansEPv+0x1b) [0xb443bb]

jestan

Mongo DB Repair

1) Remove mongod.pid file or mongod.lock file

2) Run './mongod --repair --dbpath <db-path>'

3) Run './mongo'
   
   //From Mongo Shell

jestan

grep -A 20 "Exception" error.log  > exceptions.log

jestan

dd bs=1M count=128 if=/dev/zero of=/tmp/test
dd bs=1M count=128 if=/dev/zero of=/tmp/test; sync
dd bs=1M count=128 if=/dev/zero of=/tmp/test conv=fdatasync
dd bs=1M count=128 if=/dev/zero of=/tmp/test oflag=dsync

iozone -R -l 5 -u 5 -r 4k -s 100m -F /tmp/f1 /tmp/f2 /tmp/f3 /tmp/f4 /tmp/f5 | tee -a /tmp/iozone_results.txt

jestan

mvn release:clean release:prepare -DautoVersionSubmodules=true

jestan

#!/bin/bash 
while true; 
do { 
     echo -e "HTTP/1.1 200 OK\r\n"; cat www-doc/index.html;
} | nc -l 8080; 
done

jestan

Systems Thinking

• "The Fifth Discipline", by Peter Senge (http://amzn.to/H7R4fp)
• "Lean Thinking", by James Womack (http://amzn.to/H7R9zK)
• "The Logic of Failure", by Dietrich Dorner (http://amzn.to/HyheLM)
• "Drift Into Failure", by Sidney Dekker (http://amzn.to/HpB8Fe)

Software Architecture & Methods

• "Documenting Software Architecture", by Paul Clements (http://amzn.to/H7RtOP)