MapR-FS Metrics

Every 10 seconds, the collectd service uses a MapR plugin to gather the following MapR-FS metrics on each node in the cluster.

Name Description
mapr.fs.bulk_writes The number of bulk-write operations. Bulk-write operations occur when the MapR-FS container master aggregates multiple small file writes from one or more clients into one big RPC before replicating the writes.
mapr.fs.bulk_writesbytes The number of bytes written by bulk-write operations. Bulk-write operations occur when the MapR-FS container master aggregates multiple small file writes from one or more clients into one big RPC before replicating the writes.
mapr.fs.kvstore_delete The number of delete operations on key-value store files which are used by the CLDB and MapR-DB.
mapr.fs.kvstore_insert The number of insert operations on key-value store files which are used by the CLDB and MapR-DB.
mapr.fs.kvstore_lookup The number of lookup operations on key-value store files which are used by the CLDB and MapR-DB.
mapr.fs.kvstore_scan The number of scan operations on key-value store files which are used by the CLDB and MapR-DB.
mapr.fs.local_readbytes The number of bytes read by applications that are running on the MapR-FS node where the data resides.
mapr.fs.local_reads The number of file read operations by applications that are running on the MapR-FS node where the data resides.
mapr.fs.local_writebytes The number of bytes written by applications that are running on the MapR-FS node where the data resides.
mapr.fs.local_writes The number of file write operations by applications that are running on the MapR-FS node where the data resides.
mapr.fs.read_bytes The amount of data read remotely in MB.
mapr.fs.read_cachehits The number of cache hits for file reads. This value includes pages that MapR-FS populates using readahead mechanism.
mapr.fs.read_cachemisses The number of cache misses for file read operations.
mapr.fs.reads The number of remote reads.
mapr.fs.statstype_create The number of file create operations.
mapr.fs.statstype_lookup The number of lookup operations.
mapr.fs.statstype_read The number of file read operations.
mapr.fs.statstype_write The number of file write operations.
mapr.fs.write_bytes The amount of data written remotely in MB.
mapr.fs.writes The number of remote writes.