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#! /usr/bin/env python
"""Londiste setup and sanity checker.
"""
import sys, os, skytools
import pgq.setadmin
__all__ = ['LondisteSetup']
class LondisteSetup(pgq.setadmin.SetAdmin):
initial_db_name = 'node_db'
extra_objs = [ skytools.DBSchema("londiste", sql_file="londiste.sql") ]
def __init__(self, args):
pgq.setadmin.SetAdmin.__init__(self, 'londiste', args)
self.set_name = self.cf.get("set_name")
def init_optparse(self, parser=None):
p = pgq.setadmin.SetAdmin.init_optparse(self, parser)
p.add_option("--expect-sync", action="store_true", dest="expect_sync",
help = "no copy needed", default=False)
p.add_option("--skip-truncate", action="store_true", dest="skip_truncate",
help = "dont delete old data", default=False)
p.add_option("--force", action="store_true",
help="force", default=False)
p.add_option("--all", action="store_true",
help="include all tables", default=False)
return p
def extra_init(self, node_type, node_db, provider_db):
if not provider_db:
return
pcurs = provider_db.cursor()
ncurs = node_db.cursor()
q = "select table_name from londiste.set_get_table_list(%s)"
pcurs.execute(q, [self.set_name])
for row in pcurs.fetchall():
tbl = row['table_name']
q = "select * from londiste.set_add_table(%s, %s)"
ncurs.execute(q, [self.set_name, tbl])
node_db.commit()
provider_db.commit()
def cmd_add(self, args = []):
q = "select * from londiste.node_add_table(%s, %s)"
db = self.get_database('node_db')
self.db_cmd_many(db, q, [self.set_name], args)
def cmd_remove(self, args = []):
q = "select * from londiste.node_remove_table(%s, %s)"
db = self.get_database('node_db')
self.db_cmd_many(db, q, [self.set_name], args)
def cmd_add_seq(self, args = []):
q = "select * from londiste.node_add_seq(%s, %s)"
db = self.get_database('node_db')
self.db_cmd_many(db, q, [self.set_name], args)
def cmd_remove_seq(self, args = []):
q = "select * from londiste.node_remove_seq(%s, %s)"
db = self.get_database('node_db')
self.db_cmd_many(db, q, [self.set_name], args)
def cmd_resync(self, args = []):
q = "select * from londiste.node_resync_table(%s, %s)"
db = self.get_database('node_db')
self.db_cmd_many(db, q, [self.set_name], args)
def cmd_tables(self, args = []):
q = "select table_name, merge_state from londiste.node_get_table_list(%s)"
db = self.get_database('node_db')
self.db_display_table(db, "Tables on node", q, [self.set_name])
def cmd_seqs(self, args = []):
q = "select seq_namefrom londiste.node_get_seq_list(%s)"
db = self.get_database('node_db')
self.db_display_table(db, "Sequences on node", q, [self.set_name])
def cmd_missing(self, args = []):
q = "select * from londiste.node_show_missing(%s)"
db = self.get_database('node_db')
self.db_display_table(db, "Missing objects on node", q, [self.set_name])
def cmd_check(self, args = []):
pass
def cmd_fkeys(self, args = []):
pass
def cmd_triggers(self, args = []):
pass
#
# Old commands
#
class LondisteSetup_tmp:
def find_missing_provider_tables(self, pattern='*'):
src_db = self.get_database('provider_db')
src_curs = src_db.cursor()
q = """select schemaname || '.' || tablename as full_name from pg_tables
where schemaname not in ('pgq', 'londiste', 'pg_catalog', 'information_schema')
and schemaname !~ 'pg_.*'
and (schemaname || '.' || tablename) ~ %s
except select table_name from londiste.provider_get_table_list(%s)"""
src_curs.execute(q, [glob2regex(pattern), self.pgq_queue_name])
rows = src_curs.fetchall()
src_db.commit()
list = []
for row in rows:
list.append(row[0])
return list
def admin(self):
cmd = self.args[2]
if cmd == "tables":
self.subscriber_show_tables()
elif cmd == "missing":
self.subscriber_missing_tables()
elif cmd == "add":
self.subscriber_add_tables(self.args[3:])
elif cmd == "remove":
self.subscriber_remove_tables(self.args[3:])
elif cmd == "resync":
self.subscriber_resync_tables(self.args[3:])
elif cmd == "register":
self.subscriber_register()
elif cmd == "unregister":
self.subscriber_unregister()
elif cmd == "install":
self.subscriber_install()
elif cmd == "check":
self.check_tables(self.get_provider_table_list())
elif cmd in ["fkeys", "triggers"]:
self.collect_meta(self.get_provider_table_list(), cmd, self.args[3:])
elif cmd == "seqs":
self.subscriber_list_seqs()
elif cmd == "add-seq":
self.subscriber_add_seq(self.args[3:])
elif cmd == "remove-seq":
self.subscriber_remove_seq(self.args[3:])
elif cmd == "restore-triggers":
self.restore_triggers(self.args[3], self.args[4:])
else:
self.log.error('bad subcommand: ' + cmd)
sys.exit(1)
def collect_meta(self, table_list, meta, args):
"""Display fkey/trigger info."""
if args == []:
args = ['pending', 'active']
field_map = {'triggers': ['table_name', 'trigger_name', 'trigger_def'],
'fkeys': ['from_table', 'to_table', 'fkey_name', 'fkey_def']}
query_map = {'pending': "select %s from londiste.subscriber_get_table_pending_%s(%%s)",
'active' : "select %s from londiste.find_table_%s(%%s)"}
table_list = self.clean_subscriber_tables(table_list)
if len(table_list) == 0:
self.log.info("No tables, no fkeys")
return
dst_db = self.get_database('subscriber_db')
dst_curs = dst_db.cursor()
for which in args:
union_list = []
fields = field_map[meta]
q = query_map[which] % (",".join(fields), meta)
for tbl in table_list:
union_list.append(q % skytools.quote_literal(tbl))
# use union as fkey may appear in duplicate
sql = " union ".join(union_list) + " order by 1"
desc = "%s %s" % (which, meta)
self.display_table(desc, dst_curs, fields, sql)
dst_db.commit()
def check_tables(self, table_list):
src_db = self.get_database('provider_db')
src_curs = src_db.cursor()
dst_db = self.get_database('subscriber_db')
dst_curs = dst_db.cursor()
failed = 0
for tbl in table_list:
self.log.info('Checking %s' % tbl)
if not skytools.exists_table(src_curs, tbl):
self.log.error('Table %s missing from provider side' % tbl)
failed += 1
elif not skytools.exists_table(dst_curs, tbl):
self.log.error('Table %s missing from subscriber side' % tbl)
failed += 1
else:
failed += self.check_table_columns(src_curs, dst_curs, tbl)
src_db.commit()
dst_db.commit()
return failed
def restore_triggers(self, tbl, triggers=None):
tbl = skytools.fq_name(tbl)
if tbl not in self.get_subscriber_table_list():
self.log.error("Table %s is not in the subscriber queue." % tbl)
sys.exit(1)
dst_db = self.get_database('subscriber_db')
dst_curs = dst_db.cursor()
if not triggers:
q = "select count(1) from londiste.subscriber_get_table_pending_triggers(%s)"
dst_curs.execute(q, [tbl])
if not dst_curs.fetchone()[0]:
self.log.info("No pending triggers found for %s." % tbl)
else:
q = "select londiste.subscriber_restore_all_table_triggers(%s)"
dst_curs.execute(q, [tbl])
else:
for trigger in triggers:
q = "select count(1) from londiste.find_table_triggers(%s) where trigger_name=%s"
dst_curs.execute(q, [tbl, trigger])
if dst_curs.fetchone()[0]:
self.log.info("Trigger %s on %s is already active." % (trigger, tbl))
continue
q = "select count(1) from londiste.subscriber_get_table_pending_triggers(%s) where trigger_name=%s"
dst_curs.execute(q, [tbl, trigger])
if not dst_curs.fetchone()[0]:
self.log.info("Trigger %s not found on %s" % (trigger, tbl))
continue
q = "select londiste.subscriber_restore_table_trigger(%s, %s)"
dst_curs.execute(q, [tbl, trigger])
dst_db.commit()
def check_table_columns(self, src_curs, dst_curs, tbl):
src_colrows = find_column_types(src_curs, tbl)
dst_colrows = find_column_types(dst_curs, tbl)
src_cols = make_type_string(src_colrows)
dst_cols = make_type_string(dst_colrows)
if src_cols.find('k') < 0:
self.log.error('provider table %s has no primary key (%s)' % (
tbl, src_cols))
return 1
if dst_cols.find('k') < 0:
self.log.error('subscriber table %s has no primary key (%s)' % (
tbl, dst_cols))
return 1
if src_cols != dst_cols:
self.log.warning('table %s structure is not same (%s/%s)'\
', trying to continue' % (tbl, src_cols, dst_cols))
err = 0
for row in src_colrows:
found = 0
for row2 in dst_colrows:
if row2['name'] == row['name']:
found = 1
break
if not found:
err = 1
self.log.error('%s: column %s on provider not on subscriber'
% (tbl, row['name']))
elif row['type'] != row2['type']:
err = 1
self.log.error('%s: pk different on column %s'
% (tbl, row['name']))
return err
def find_missing_subscriber_tables(self, pattern='*'):
src_db = self.get_database('subscriber_db')
src_curs = src_db.cursor()
q = """select schemaname || '.' || tablename as full_name from pg_tables
where schemaname not in ('pgq', 'londiste', 'pg_catalog', 'information_schema')
and schemaname !~ 'pg_.*'
and schemaname || '.' || tablename ~ %s
except select table_name from londiste.provider_get_table_list(%s)"""
src_curs.execute(q, [glob2regex(pattern), self.pgq_queue_name])
rows = src_curs.fetchall()
src_db.commit()
list = []
for row in rows:
list.append(row[0])
return list
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