Database Reference
In-Depth Information
org.apache.hadoop.mapred.JobTracker
Connecting to
Submitted Log Name: org.apache.hadoop.mapred.JobTracker
Log Class: org.apache.commons.logging.impl.Log4JLogger
Effective level: INFO
By changing
getLevel
to
setLevel,
you can set the log levels. Some possible values are
all, info, debug,
and
error
. The level and volume of the information you receive will vary, with
all
supplying everything and
error
just
giving an error message.
You can use the
dfsadmin
report option to get information and administer Hadoop, as follows:
[hadoop@hc1nn ~]$ hadoop dfsadmin -report
Configured Capacity: 158534062080 (147.65 GB)
Present Capacity: 141443452928 (131.73 GB)
DFS Remaining: 141433782272 (131.72 GB)
DFS Used: 9670656 (9.22 MB)
DFS Used%: 0.01%
Under replicated blocks: 0
Blocks with corrupt replicas: 0
Missing blocks: 0
-------------------------------------------------
Datanodes available: 3 (3 total, 0 dead)
Live datanodes:
Name: 192.168.1.106:50010 (hc1r1m2)
Hostname: hc1r1m2
Decommission Status : Normal
Configured Capacity: 52844687360 (49.22 GB)
DFS Used: 4157440 (3.96 MB)
Non DFS Used: 6079811584 (5.66 GB)
DFS Remaining: 46760718336 (43.55 GB)
DFS Used%: 0.01%
DFS Remaining%: 88.49%
Last contact: Wed Mar 26 18:26:18 NZDT 2014
Name: 192.168.1.104:50010 (hc1r1m1)
Hostname: hc1r1m1
Decommission Status : Normal
Configured Capacity: 52844687360 (49.22 GB)
DFS Used: 3698688 (3.53 MB)
Non DFS Used: 3301863424 (3.08 GB)
DFS Remaining: 49539125248 (46.14 GB)
DFS Used%: 0.01%
DFS Remaining%: 93.74%
Last contact: Wed Mar 26 18:26:20 NZDT 2014
Search WWH ::
Custom Search