def dbs_tables(sqlContext, hdir='hdfs:///project/awg/cms', inst='GLOBAL', verbose=False):
"""
Parse DBS records on HDFS via mapping DBS tables to Spark SQLContext.
:returns: a dictionary with DBS Spark DataFrame.
"""
dbsdir = hdir+'/CMS_DBS3_PROD_%s/current' % inst
paths = {'dpath':apath(dbsdir, 'DATASETS'),
'bpath':apath(dbsdir, 'BLOCKS'),
'fpath':apath(dbsdir, 'FILES'),
'apath':apath(dbsdir, 'ACQUISITION_ERAS'),
'ppath':apath(dbsdir, 'PROCESSING_ERAS'),
'mcpath':apath(dbsdir, 'DATASET_OUTPUT_MOD_CONFIGS'),
'ocpath':apath(dbsdir, 'OUTPUT_MODULE_CONFIGS'),
'rvpath':apath(dbsdir, 'RELEASE_VERSIONS'),
'flpath':apath(dbsdir, 'FILE_LUMIS'),
'dapath':apath(dbsdir, 'DATASET_ACCESS_TYPES')}
print("Use the following data on HDFS")
for key, val in paths.items():
print(val)
# define DBS tables
daf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_dataset_access_types()) \
for path in files(paths['dapath'], verbose)])
ddf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_datasets()) \
for path in files(paths['dpath'], verbose)])
bdf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_blocks()) \
for path in files(paths['bpath'], verbose)])
fdf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_files()) \
for path in files(paths['fpath'], verbose)])
aef = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_acquisition_eras()) \
for path in files(paths['apath'], verbose)])
pef = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_processing_eras()) \
for path in files(paths['ppath'], verbose)])
mcf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_mod_configs()) \
for path in files(paths['mcpath'], verbose)])
ocf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_out_configs()) \
for path in files(paths['ocpath'], verbose)])
rvf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_rel_versions()) \
for path in files(paths['rvpath'], verbose)])
flf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_file_lumis()) \
for path in files(paths['flpath'], verbose)])
# Register temporary tables to be able to use sqlContext.sql
daf.registerTempTable('daf')
ddf.registerTempTable('ddf')
bdf.registerTempTable('bdf')
fdf.registerTempTable('fdf')
aef.registerTempTable('aef')
pef.registerTempTable('pef')
mcf.registerTempTable('mcf')
ocf.registerTempTable('ocf')
rvf.registerTempTable('rvf')
flf.registerTempTable('flf')
tables = {'daf':daf, 'ddf':ddf, 'bdf':bdf, 'fdf':fdf, 'aef':aef, 'pef':pef, 'mcf':mcf, 'ocf':ocf, 'rvf':rvf, 'flf': flf}
return tables
def dbs_tables(sqlContext,
hdir='hdfs:///project/awg/cms',
inst='GLOBAL',
verbose=False,
tables=None):
"""
Parse DBS records on HDFS via mapping DBS tables to Spark SQLContext.
:returns: a dictionary with DBS Spark DataFrame.
"""
dbsdir = hdir + '/CMS_DBS3_PROD_%s/current' % inst
paths = {
'dpath': apath(dbsdir, 'DATASETS'),
'tpath': apath(dbsdir, 'DATA_TIERS'),
'bpath': apath(dbsdir, 'BLOCKS'),
'fpath': apath(dbsdir, 'FILES'),
'apath': apath(dbsdir, 'ACQUISITION_ERAS'),
'ppath': apath(dbsdir, 'PROCESSING_ERAS'),
'mcpath': apath(dbsdir, 'DATASET_OUTPUT_MOD_CONFIGS'),
'ocpath': apath(dbsdir, 'OUTPUT_MODULE_CONFIGS'),
'rvpath': apath(dbsdir, 'RELEASE_VERSIONS'),
'flpath': apath(dbsdir, 'FILE_LUMIS'),
'dapath': apath(dbsdir, 'DATASET_ACCESS_TYPES')
}
logging.info("Use the following data on HDFS")
dbs_tables = {} # final dict of tables we'll load
for key, val in paths.items():
if tables:
if key in tables:
logging.info(val)
else:
logging.info(val)
# define DBS tables
if not tables or 'daf' in tables:
daf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_dataset_access_types()) \
for path in files(paths['dapath'], verbose)])
daf.registerTempTable('daf')
dbs_tables.update({'daf': daf})
if not tables or 'ddf' in tables:
ddf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_datasets()) \
for path in files(paths['dpath'], verbose)])
ddf.registerTempTable('ddf')
dbs_tables.update({'ddf': ddf})
if not tables or 'dtf' in tables:
dtf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_data_tiers()) \
for path in files(paths['tpath'], verbose)])
dtf.registerTempTable('dtf')
dbs_tables.update({'dtf': dtf})
if not tables or 'bdf' in tables:
bdf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_blocks()) \
for path in files(paths['bpath'], verbose)])
bdf.registerTempTable('bdf')
dbs_tables.update({'bdf': bdf})
if not tables or 'fdf' in tables:
fdf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_files()) \
for path in files(paths['fpath'], verbose)])
fdf.registerTempTable('fdf')
dbs_tables.update({'fdf': fdf})
if not tables or 'aef' in tables:
aef = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_acquisition_eras()) \
for path in files(paths['apath'], verbose)])
aef.registerTempTable('aef')
dbs_tables.update({'aef': aef})
if not tables or 'pef' in tables:
pef = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_processing_eras()) \
for path in files(paths['ppath'], verbose)])
pef.registerTempTable('pef')
dbs_tables.update({'pef': pef})
if not tables or 'mcf' in tables:
mcf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_mod_configs()) \
for path in files(paths['mcpath'], verbose)])
mcf.registerTempTable('mcf')
dbs_tables.update({'mcf': mcf})
if not tables or 'ocf' in tables:
ocf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_out_configs()) \
for path in files(paths['ocpath'], verbose)])
ocf.registerTempTable('ocf')
dbs_tables.update({'ocf': ocf})
if not tables or 'rvf' in tables:
rvf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_rel_versions()) \
for path in files(paths['rvpath'], verbose)])
rvf.registerTempTable('rvf')
dbs_tables.update({'rvf': rvf})
if not tables or 'flf' in tables:
flf = unionAll([sqlContext.read.format('com.databricks.spark.csv')\
.options(treatEmptyValuesAsNulls='true', nullValue='null')\
.load(path, schema = schema_file_lumis()) \
for path in files(paths['flpath'], verbose)])
flf.registerTempTable('flf')
dbs_tables.update({'flf': flf})
return dbs_tables