stream topic info
Lists information about the partitions in the topics that are in a stream.
adminperm
,
consumeperm
, produceperm
, or topicperm
permission on the stream.NOTE: The
mapr
user is not treated as a
superuser. MapR Streams does not allow the mapr
user to run this command
unless that user is given the relevant permission or permissions with access-control
expressions.Syntax
CLI |
|
REST | http[s]://<host>:<port>/rest/stream/topic/info?path=<path>&topic=<name> |
Parameters
Parameter | Description |
---|---|
path |
The path and name of the stream for which you want to display information about topics. |
topic |
The name of the topic for which you want to display information. |
Sample Output
# maprcli stream topic info -path /jtest-BasicListenerTest-LGtopicSubscr0 -topic topic0 -json
{
"timestamp":1438765229877,
"timeofday":"2015-08-05 02:00:29.877 GMT-0700",
"status":"OK",
"total":4,
"data":[
"numconsumers" : 4,
"partitions" : [
{
"partitionid":0,
"physicalsize":491520,
"logicalsize":2752512,
"minoffset":0,
"maxoffset":640319,
"minoffsetacrossconsumers": 600000,
"mintimestamp":1438764130586,
"maxtimestamp":1438764131568,
"mintimestampacrossconsumers": 1438764131500
"fid":"2129.463.526852",
"master":"localhost:5660",
"servers":"localhost:5660"
},
{
"partitionid":1,
"physicalsize":491520,
"logicalsize":2752512,
"maxoffset":640319,
"minoffsetacrossconsumers": 620000,
"mintimestamp":1438764130717,
"maxtimestamp":1438764131568,
"mintimestampacrossconsumers": 1438764131560
"fid":"2130.464.526860",
"master":"localhost:5660",
"servers":"localhost:5660"
},
],
],
}
Field Descriptions
maxoffset
- The maximum offset for this partition.
minoffsetacrossconsumers
- All known consumers for this partition have consumed messages at least up to this offset.
mintimestamp
- The timestamp of oldest message in the partition.
maxtimestamp
- The timestamp of newest message in the partition.
mintimestampacrossconsumers
- All known consumers for this partition have consumed messages older than this timestamp.
fid
- The inode hosting the head of the partition.
master
- For use by MapR support: The master server that is hosting the head of the partition.
servers
- For use by MapR support: Lists all of the servers that are hosting the head of the partition.