net, disk and io plugins measurements being written to influxdb as strings

[gotyaoi]

While testing my changes, I noticed some of my graphs were not displaying. It appears that the net, disk and io plugins measurements are being written to influxdb as strings. A sampling of the relevant post data, grabbed by tcpdump. notice the quotes around the numbers:

net_bytes_sent,host=cent-test,interface=eth0 value="4203340"
net_bytes_recv,host=cent-test,interface=eth0 value="66080965"
net_packets_sent,host=cent-test,interface=eth0 value="12648"
net_packets_recv,host=cent-test,interface=eth0 value="271323"
net_err_in,host=cent-test,interface=eth0 value="0"
net_err_out,host=cent-test,interface=eth0 value="0"
net_drop_in,host=cent-test,interface=eth0 value="0"
net_drop_out,host=cent-test,interface=eth0 value="0"
disk_total,fstype=ext4,host=cent-test,path=/ value="18888781824"
disk_free,fstype=ext4,host=cent-test,path=/ value="15853277184"
disk_used,fstype=ext4,host=cent-test,path=/ value="3035504640"
disk_inodes_total,fstype=ext4,host=cent-test,path=/ value="1179648"
disk_inodes_free,fstype=ext4,host=cent-test,path=/ value="1121653"
disk_inodes_used,fstype=ext4,host=cent-test,path=/ value="57995"
disk_total,fstype=proc,host=cent-test,path=/proc value="0"
disk_free,fstype=proc,host=cent-test,path=/proc value="0"
disk_used,fstype=proc,host=cent-test,path=/proc value="0"
disk_inodes_total,fstype=proc,host=cent-test,path=/proc value="0"
disk_inodes_free,fstype=proc,host=cent-test,path=/proc value="0"
disk_inodes_used,fstype=proc,host=cent-test,path=/proc value="0"
disk_total,fstype=sysfs,host=cent-test,path=/sys value="0"
disk_free,fstype=sysfs,host=cent-test,path=/sys value="0"
disk_used,fstype=sysfs,host=cent-test,path=/sys value="0"
disk_inodes_total,fstype=sysfs,host=cent-test,path=/sys value="0"
disk_inodes_free,fstype=sysfs,host=cent-test,path=/sys value="0"
disk_inodes_used,fstype=sysfs,host=cent-test,path=/sys value="0"
disk_total,fstype=devpts,host=cent-test,path=/dev/pts value="0"
disk_free,fstype=devpts,host=cent-test,path=/dev/pts value="0"
disk_used,fstype=devpts,host=cent-test,path=/dev/pts value="0"
disk_inodes_total,fstype=devpts,host=cent-test,path=/dev/pts value="0"
disk_inodes_free,fstype=devpts,host=cent-test,path=/dev/pts value="0"
disk_inodes_used,fstype=devpts,host=cent-test,path=/dev/pts value="0"
disk_total,fstype=tmpfs,host=cent-test,path=/dev/shm value="522330112"
disk_free,fstype=tmpfs,host=cent-test,path=/dev/shm value="522330112"
disk_used,fstype=tmpfs,host=cent-test,path=/dev/shm value="0"
disk_inodes_total,fstype=tmpfs,host=cent-test,path=/dev/shm value="127522"
disk_inodes_free,fstype=tmpfs,host=cent-test,path=/dev/shm value="127521"
disk_inodes_used,fstype=tmpfs,host=cent-test,path=/dev/shm value="1"
disk_total,fstype=binfmt_misc,host=cent-test,path=/proc/sys/fs/binfmt_misc value="0"
disk_free,fstype=binfmt_misc,host=cent-test,path=/proc/sys/fs/binfmt_misc value="0"
disk_used,fstype=binfmt_misc,host=cent-test,path=/proc/sys/fs/binfmt_misc value="0"
disk_inodes_total,fstype=binfmt_misc,host=cent-test,path=/proc/sys/fs/binfmt_misc value="0"
disk_inodes_free,fstype=binfmt_misc,host=cent-test,path=/proc/sys/fs/binfmt_misc value="0"
disk_inodes_used,fstype=binfmt_misc,host=cent-test,path=/proc/sys/fs/binfmt_misc value="0"
io_reads,host=cent-test,name=sda,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="8656"
io_writes,host=cent-test,name=sda,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="7029428"
io_read_bytes,host=cent-test,name=sda,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="238748672"
io_write_bytes,host=cent-test,name=sda,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="51251212288"
io_read_time,host=cent-test,name=sda,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="28009"
io_write_time,host=cent-test,name=sda,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="15593832"
io_io_time,host=cent-test,name=sda,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="2872261"
io_reads,host=cent-test,name=sda1,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="336"
io_writes,host=cent-test,name=sda1,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="0"
io_read_bytes,host=cent-test,name=sda1,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="1503232"
io_write_bytes,host=cent-test,name=sda1,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="0"
io_read_time,host=cent-test,name=sda1,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="180"
io_write_time,host=cent-test,name=sda1,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="0"
io_io_time,host=cent-test,name=sda1,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="176"
io_reads,host=cent-test,name=sda2,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="8168"
io_writes,host=cent-test,name=sda2,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="6963688"
io_read_bytes,host=cent-test,name=sda2,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="236622848"
io_write_bytes,host=cent-test,name=sda2,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="51251212288"
io_read_time,host=cent-test,name=sda2,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="27745"
io_write_time,host=cent-test,name=sda2,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="14738717"
io_io_time,host=cent-test,name=sda2,serial=VBOX_HARDDISK_VB5d45316d-7234d968 value="2019018"

[sparrc]

InfluxDB does not support writing uint64, I have a hack-a-round