#!/bin/bash

exec 1>>/var/log/beegfs-setup.log
exec 2>&1

# source config file
CONFIG_FILE=/etc/beegfs/knu-setup.conf
if [ -f "$CONFIG_FILE" ]; then
    source "$CONFIG_FILE"
else
    echo "FATAL: Configuration file $CONFIG_FILE is missing"
fi

# get hostname
nodename=$( hostname )

s_node () {
    [ "${nodename:0:1}" = "s" ]
}

# setup meta
beegfs-setup-meta -f -m $BEEGFS_MGMT_HOST -p $BEEGFS_META_PATH

# setup client
beegfs-setup-client -m $BEEGFS_MGMT_HOST
echo "${BEEGFS_MOUNT_POINT} /etc/beegfs/beegfs-client.conf" > /etc/beegfs/beegfs-mounts.conf

# setup storage
s_node && fhgfs-setup-storage -f -r -m $BEEGFS_MGMT_HOST -p $BEEGFS_STORAGE_PATH

# cleanup previous installation
systemctl start beegfs-helperd
beegfs-ctl --removenode --nodetype=metadata $( beegfs-ctl --listnodes --nodetype=metadata | grep $nodename | awk '{print $3}' | sed 's/]//' )
#beegfs-ctl --removenode --nodetype=client   $( beegfs-ctl --listnodes --nodetype=client   | grep $nodename | awk '{print $3}' | sed 's/]//' ) 
if s_node; then 
  storage_node=$( beegfs-ctl --listnodes --nodetype=storage  | grep $nodename | awk '{print $3}' | sed 's/]//' )
  if [ -n "$storage_node" ]; then
    for tgt in $( beegfs-ctl --listtargets | grep $storage_node | awk '{print $1}' ); do
      beegfs-ctl --unmaptarget $tgt
    done 
    beegfs-ctl --removenode --nodetype=storage $storage_node
  fi
fi

# tune connRDMABufSize to MTU
sed "/^connRDMABufSize/s/.*/connRDMABufSize               = ${BEEGFS_CLIENT_MTU}/" -i /etc/beegfs/beegfs-client.conf

# tune sysMountSanityCheckMS
sed "/^sysMountSanityCheckMS/s/.*/sysMountSanityCheckMS         = 0/" -i /etc/beegfs/beegfs-client.conf

# tune client performance
sed "/^connMaxInternodeNum/s/.*/connMaxInternodeNum         = 64/" -i /etc/beegfs/beegfs-client.conf
sed "/^tuneRemoteFSync/s/.*/tuneRemoteFSync         = false/" -i /etc/beegfs/beegfs-client.conf