Alexander, I think I did not state it clearly, Actually we need total block report which says, which block located on which datanode.
On Tue, Sep 3, 2019 at 7:31 PM Alexander Batyrshin <[email protected]> wrote: > JMX metrics: > > http://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-common/Metrics.html#FSNamesystem > > Try to get them via http://namenode:$dfs.namenode.http-address/jmx > > On 3 Sep 2019, at 16:32, Amith sha <[email protected]> wrote: > > @alex > I think no JMX metrics available and also regarding fsck that will be a > costlier operation in a cluster with 250Million fsobjects. > > > Thanks & Regards > Amithsha > > > On Tue, Sep 3, 2019 at 6:46 PM Alexander Batyrshin <[email protected]> > wrote: > >> 1) JMX metrics >> 2) hdfs fsck / >> >> > On 3 Sep 2019, at 13:23, HK <[email protected]> wrote: >> > >> > Hi All, >> > Is there a way to dump the block report from namenode ? >> > >> > -- Hema Kumar >> >> >
