List available nodes.
http://<host>:8000/proc/admin/ | root://<host>//proc/admin/
?mgm.cmd=node
&mgm.subcmd=ls
&eos.ruid=0
&eos.rgid=0
&mgm.format=json
[&mgm.outformat=l|m|io|sys|fsck]
[&mgm.outhost=brief]
[&mgm.selection=<match>]
node ls [-s] [-b|--brief] [-m|-l|--sys|--io|--fsck] [<node>] : list all nodes or only <node>. <node> is a substring match and can be a comma seperated list
-s : silent mode
-b,--brief : display host names without domain names
-m : monitoring key=value output format
-l : long output - list also file systems after each node
--io : print IO statistics
--sys : print SYS statistics (memory + threads)
--fsck : print filesystem check statistcis
Configure a node.
http://<host>:8000/proc/admin/ | root://<host>//proc/admin/
?mgm.cmd=node
&mgm.subcmd=config
&eos.ruid=0
&eos.rgid=0
&mgm.format=json
&mgm.node.name=<node>
&mgm.node.key=<key>
&mgm.node.value=<value>
node config <host:port> <key>=<value> : configure file system parameters for each filesystem of this node
<key> : gw.rate=<mb/s> - set the transfer speed per gateway transfer
<key> : gw.ntx=<#> - set the number of concurrent transfers for a gateway node
<key> : error.simulation=io_read|io_write|xs_read|xs_write|fmd_open
io_read : simulate read errors
io_write : simulate write errors
xs_read : simulate checksum errors when reading a file
xs_write : simulate checksum errors when writing a file
fmd_open : simulate fmd mismatch when opening a file
<none> : disable error simulation (every value than the previous ones are fine!)
<key> : publish.interval=<sec> - set the filesystem state publication interval to <sec> seconds
<key> : debug.level=<level> - set the node into debug level <level> [default=notice] -> see debug --help for available levels
<key> : for other keys see help of 'fs config' for details
Activate/Deactive/Define a node.
http://<host>:8000/proc/admin/ | root://<host>//proc/admin/
?mgm.cmd=node
&mgm.subcmd=set
&eos.ruid=0
&eos.rgid=0
&mgm.format=json
&mgm.node=<node>
&mgm.node.state=on|off
node set <queue-name>|<host:port> on|off : activate/deactivate node
Remove a node.
http://<host>:8000/proc/admin/ | root://<host>//proc/admin/
?mgm.cmd=node
&mgm.subcmd=rm
&eos.ruid=0
&eos.rgid=0
&mgm.format=json
&mgm.node=<node>
node rm <queue-name>|<host:port> : remove a node
Register a node.
http://<host>:8000/proc/admin/ | root://<host>//proc/admin/
?mgm.cmd=node
&mgm.subcmd=register
&eos.ruid=0
&eos.rgid=0
&mgm.format=json
&mgm.node.name=<node>
&mgm.node.path2register=<path2register>
&mgm.node.space2register=<space2register>
[&mgm.node.force=true]
[&mgm.node.root=true]
node register <host:port|*> <path2register> <space2register> [--force] [--root] : register filesystems on node <host:port>
<path2register> is used as match for the filesystems to register e.g. /data matches filesystems /data01 /data02 etc. ... /data/ registers all subdirectories in /data/
<space2register> is formed as <space>:<n> where <space> is the space name and <n> must be equal to the number of filesystems which are matched by <path2register> e.g. data:4 or spare:22 ...
--force : removes any existing filesystem label and re-registers
--root : allows to register paths on the root partition
Enable/Disable a node as a transfer gateway
http://<host>:8000/proc/admin/ | root://<host>//proc/admin/
?mgm.cmd=node
&mgm.subcmd=gw
&eos.ruid=0
&eos.rgid=0
&mgm.format=json
&mgm.node=<node>
&mgm.node.txgw=on|off
node gw <queue-name>|<host:port> <on|off> : enable (on) or disable (off) node as a transfer gateway