/usr/bin/pycassaShell is in python-pycassa 1.11.2.1-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 | #!/usr/bin/python
"""
interactive Cassandra Python shell
"""
#try:
# from IPython.Shell import IPShellEmbed
#except ImportError:
# print "[I]: IPython not found, falling back to default interpreter."
try:
import IPython
if hasattr(IPython, "embed"):
def runshell():
IPython.embed(banner1="")
else:
import IPython.Shell
def runshell():
IPython.Shell.IPShellEmbed([])()
except ImportError:
print "[I]: IPython not found, falling back to default interpreter."
def runshell():
import os
os.environ['PYTHONINSPECT'] = '1'
import pycassa, optparse
from pycassa.system_manager import *
from sys import stdout, stderr, exit
def _print_line(label, value):
spaces = " " * (35 - len(label + ':'))
print "%s:%s%s" % (label, spaces, str(value))
def _make_line(label, value):
spaces = " " * (35 - len(label + ':'))
return "%s:%s%s\n" % (label, spaces, str(value))
def describe_keyspace(keyspace):
try:
ks = SYSTEM_MANAGER.get_keyspace_properties(keyspace)
except pycassa.NotFoundException:
print "\nKeyspace %s does not exist." % keyspace
print
_print_line("Name", keyspace)
print
s = ks['replication_strategy']
_print_line('Replication Strategy', s[s.rfind('.') + 1: ])
print
if ks['strategy_options']:
_print_line("Strategy Options", ks['strategy_options'])
cfs = SYSTEM_MANAGER.get_keyspace_column_families(keyspace).keys()
cfs.sort()
print "Column Families:"
for cf in cfs:
print " " + cf
def describe_column_family(arg1, arg2=None):
"""
Prints a description of a column family.
A keyspace and column family name may be passed in, or a
:class:`~pycassa.columnfamil.ColumnFamily` object may be passed in.
"""
if arg2 is None:
# This is a ColumnFamily object
column_family = arg1.column_family
keyspace = arg1.pool.keyspace
else:
keyspace, column_family = (arg1, arg2)
try:
cfdef = SYSTEM_MANAGER.get_keyspace_column_families(keyspace)[column_family]
except KeyError:
print "Column family %s does not exist in keyspace %s" % (column_family, keyspace)
print
_print_line('Name', cfdef.name)
_print_line('Description', cfdef.comment)
_print_line('Column Type', cfdef.column_type)
print
s = cfdef.comparator_type
_print_line('Comparator Type', s[s.rfind('.') + 1:])
if cfdef.column_type == 'Super':
s = cfdef.subcomparator_type
_print_line('Subcomparator Type', s[s.rfind('.') + 1:])
s = cfdef.default_validation_class
_print_line('Default Validation Class', s[s.rfind('.') + 1:])
print
print "Cache Sizes"
if cfdef.row_cache_size == 0:
s = 'Disabled'
elif cfdef.row_cache_size >= 1:
s = str(int(cfdef.row_cache_size)) + " rows"
else:
s = str(cfdef.key_cache_size) + "%"
_print_line(" Row Cache", s)
if cfdef.key_cache_size == 0:
s = 'Disabled'
elif cfdef.key_cache_size >= 1:
s = str(int(cfdef.key_cache_size)) + " keys"
else:
s = str(cfdef.key_cache_size) + "%"
_print_line(" Key Cache", s)
print
if cfdef.read_repair_chance == 0:
s = 'Disabled'
else:
s = str(cfdef.read_repair_chance * 100) + '%'
_print_line("Read Repair Chance", s)
print
_print_line("GC Grace Seconds", cfdef.gc_grace_seconds)
print
compact_disabled = cfdef.min_compaction_threshold == 0 or cfdef.max_compaction_threshold == 0
print "Compaction Thresholds"
if compact_disabled:
_print_line(" Min", "Minor Compactions Disabled")
else:
_print_line(" Min", cfdef.min_compaction_threshold)
if compact_disabled:
_print_line(" Max", "Minor Compactions Disabled")
else:
_print_line(" Max", cfdef.max_compaction_threshold)
print
if hasattr(cfdef, 'memtable_throughput_in_mb'):
print 'Memtable Flush After Thresholds'
_print_line(" Throughput", str(cfdef.memtable_throughput_in_mb) + " MiB")
s = str(int(cfdef.memtable_operations_in_millions * 1000000))
_print_line(" Operations", s + " operations")
_print_line(" Time", str(cfdef.memtable_flush_after_mins) + " minutes")
print
if getattr(cfdef, 'row_cache_save_period_in_seconds', None) is not None:
print "Cache Save Periods"
if cfdef.row_cache_save_period_in_seconds == 0:
s = 'Disabled'
else:
s = str(cfdef.row_cache_save_period_in_seconds) + ' seconds'
_print_line(" Row Cache", s)
if getattr(cfdef, 'key_cache_save_period_in_seconds', None) is not None:
if cfdef.key_cache_save_period_in_seconds == 0:
s = 'Disabled'
else:
s = str(cfdef.key_cache_save_period_in_seconds) + ' seconds'
_print_line(" Key Cache", s)
if cfdef.column_metadata:
print "\nColumn Metadata"
for coldef in cfdef.column_metadata:
print
_print_line(" - Name", coldef.name)
s = coldef.validation_class
_print_line(" Value Type", s[s.rfind('.') + 1: ])
if coldef.index_type is not None:
s = IndexType._VALUES_TO_NAMES[coldef.index_type]
_print_line(" Index Type", s[s.rfind('.') + 1: ])
_print_line(" Index Name", coldef.index_name)
_pool = None
def _update_cf(ks, cf, delete=False):
if ks == options.keyspace and _pool is not None:
if not delete:
existed = cf.upper() in globals()
globals()[cf.upper()] = pycassa.ColumnFamily(_pool, cf)
if not existed:
print "\nLoaded %s as %s" % (cf, cf.upper())
else:
print "\nReloaded %s" % cf.upper()
else:
globals().pop(cf.upper())
print "\nDropped %s" % cf.upper()
class InteractiveSystemManager(pycassa.SystemManager):
"""
Allows ColumnFamily instances to be passed directly to SystemManager
methods instead of specifying a keyspace and column family as strings.
"""
def create_column_family(self, keyspace, name, *args, **kwargs):
super(InteractiveSystemManager, self).create_column_family(keyspace, name, *args, **kwargs)
_update_cf(keyspace, name)
def alter_column_family(self, arg1, arg2, *args, **kwargs):
if isinstance(arg1, pycassa.ColumnFamily):
keyspace = arg1.pool.keyspace
column_family = arg1.column_family
super(InteractiveSystemManager, self).alter_column_family(keyspace, column_family, arg2, *args, **kwargs)
_update_cf(keyspace, name)
else:
super(InteractiveSystemManager, self).alter_column_family(arg1, arg2, *args, **kwargs)
_update_cf(arg1, arg2)
def drop_column_family(self, arg1, arg2=None):
if isinstance(arg1, pycassa.ColumnFamily):
keyspace = arg1.pool.keyspace
column_family = arg1.column_family
else:
keyspace = arg1
column_family = arg2
super(InteractiveSystemManager, self).drop_column_family(keyspace, column_family)
_update_cf(keyspace, column_family, delete=True)
def alter_column(self, arg1, arg2, *args, **kwargs):
if isinstance(arg1, pycassa.ColumnFamily):
keyspace = arg1.pool.keyspace
column_family = arg1.column_family
super(InteractiveSystemManager, self).alter_column(keyspace, column_family, arg2, *args, **kwargs)
_update_cf(keyspace, column_family)
else:
super(InteractiveSystemManager, self).alter_column(arg1, arg2, *args, **kwargs)
_update_cf(arg1, arg2)
def create_index(self, arg1, arg2, *args, **kwargs):
if isinstance(arg1, pycassa.ColumnFamily):
keyspace = arg1.pool.keyspace
column_family = arg1.column_family
super(InteractiveSystemManager, self).create_index(keyspace, column_family, arg2, *args, **kwargs)
_update_cf(keyspace, column_family)
else:
super(InteractiveSystemManager, self).create_index(arg1, arg2, *args, **kwargs)
_update_cf(arg1, arg2)
parser = optparse.OptionParser(usage='Usage: %prog [OPTIONS]')
parser.add_option('-k', '--keyspace', help='Cassandra keyspace name.')
parser.add_option('-H', '--host', help='Hostname.')
parser.add_option('-p', '--port', type="int", help='Thrift port number.')
parser.add_option('-u', '--user', help='Username (for simple auth).')
parser.add_option('-P', '--passwd', help='Password (for simple auth).')
parser.add_option('-S', '--streaming', help='Using streaming transport.',
action="store_false", dest='framed')
parser.add_option('-F', '--framed',
help='Use framed transport. Default transport.',
action="store_true", dest='framed')
parser.add_option('-f', '--file', help='Run a script after startup')
(options, args) = parser.parse_args()
hostname = options.host and options.host or 'localhost'
port = options.port and options.port or 9160
framed = True if options.framed is None else options.framed
credentials = None
if options.user or options.passwd:
if options.user and (not options.passwd):
print >>stderr, "You must supply a password for username", options.user
exit(1)
if options.passwd and (not options.user):
print >>stderr, "You need a user to go with that password!"
exit(1)
credentials = {'username': options.user, 'password': options.passwd}
SYSTEM_MANAGER = InteractiveSystemManager('%s:%d' % (hostname, port),
credentials, framed)
print "----------------------------------"
print "Cassandra Interactive Python Shell"
print "----------------------------------"
print "Keyspace: %s" % options.keyspace
print "Host: %s:%d" % (hostname, port)
if options.keyspace:
_pool = pycassa.QueuePool(keyspace=options.keyspace,
server_list=['%s:%d' % (hostname, port)],
credentials=credentials,
framed_transport=framed,
timeout=5)
print "\nAvailable ColumnFamily instances:"
for cfname in sorted(SYSTEM_MANAGER.get_keyspace_column_families(options.keyspace).keys()):
cfinstance = pycassa.ColumnFamily(_pool, cfname)
exec('%s = cfinstance' % cfname.upper())
spaces = " " * (25 - len(cfname))
print " *", cfname.upper(), spaces, "(", cfname, ")"
else:
print "\nColumnFamily instances are only available if a keyspace is specified with -k/--keyspace"
print "\nSchema definition tools and cluster information are available through SYSTEM_MANAGER."
if (options.file):
print "\nExecuting script ...",
execfile(options.file)
print " done."
runshell()
|