Hi,

We have installed arangodb using DC/OS in 7 CentOS 7 machines. We deployed 
the Arangodb service from the DC/OS webui without changing the default 
parameters. Then we increased the agents from 2 to 7 by adding the nodes in 
the Arangodb webui. When we tried to upload the data using arangoimp, one 
of the db-servers failed and the log file contains the following 
information. We also noticed, that DC/OS tried restarting the instance 
several times, but it still failed.

2017-01-10T06:11:18Z [1] INFO data directly following this marker looks ok 
so repairing the marker manually may recover it...
2017-01-10T06:11:18Z [1] INFO to truncate the file at this marker, please 
restart the server with the parameter '--wal.ignore-logfile-errors true' if 
the error happening during WAL recovery, or with parameter 
'--database.ignore-datafile-errors true' if it happened after WAL recovery
2017-01-10T06:11:18Z [1] ERROR datafile 
'/var/lib/arangodb3/journals/logfile-19613331.db' is corrupt
2017-01-10T06:11:18Z [1] ERROR unable to open logfile 
'/var/lib/arangodb3/journals/logfile-19613331.db': corrupted datafile
2017-01-10T06:11:18Z [1] FATAL could not inspect WAL logfiles: corrupted 
datafile

When we googled about this issue, one of the reasons was because of low 
disk space which was not the case as we have 1TB of disk and the data we 
uploaded was few GB.

Should we change any default parameters while installing arangodb ? Is 
there a way we can specify a particular disk where the data can be stored ?

Please can you also let us know, if there is any possible way to install 
arangodb3.0.12 ( Older version ) in DC/OS.

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