Difference between revisions of "Installation/Compilation problems"

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=== How to recover from a corrupted ODB ===
 
=== How to recover from a corrupted ODB ===
  
# Stop your front-ends, mlogger, mhttpd, etc.
+
* Stop your front-ends, mlogger, mhttpd, etc.
# Remove the shared memory associated to ODB buffer. Find the shared memory segment by doing  
+
* Remove the shared memory associated to ODB buffer. Find the shared memory segment by doing  
 
  ls -l /dev/shm
 
  ls -l /dev/shm
 
then remove the segment that will be something like /dev/shm/*_test_ODB_SHM
 
then remove the segment that will be something like /dev/shm/*_test_ODB_SHM
# Move the old ODB
+
* Move the old ODB
 
  cd online
 
  cd online
 
  mv .ODB.SHM .ODB.SHM.BAD
 
  mv .ODB.SHM .ODB.SHM.BAD
# Restart ODB with larger size
+
* Restart ODB with larger size
 
  odbedit -s 10000000
 
  odbedit -s 10000000
# Reload the last saved ODB dump you have. These dumps are typically called something like 'online/history/*.xml'.
+
* Reload the last saved ODB dump you have. These dumps are typically called something like 'online/history/*.xml'.
 
So from odbedit you do something like
 
So from odbedit you do something like
 
  odbedit> load history/run00071.xml
 
  odbedit> load history/run00071.xml
# OK, now your ODB should be fixed.
+
* OK, now your ODB should be fixed.

Revision as of 10:43, 26 July 2013

How to recover from a corrupted ODB

  • Stop your front-ends, mlogger, mhttpd, etc.
  • Remove the shared memory associated to ODB buffer. Find the shared memory segment by doing
ls -l /dev/shm

then remove the segment that will be something like /dev/shm/*_test_ODB_SHM

  • Move the old ODB
cd online
mv .ODB.SHM .ODB.SHM.BAD
  • Restart ODB with larger size
odbedit -s 10000000
  • Reload the last saved ODB dump you have. These dumps are typically called something like 'online/history/*.xml'.

So from odbedit you do something like

odbedit> load history/run00071.xml
  • OK, now your ODB should be fixed.