diff options
Diffstat (limited to '')
| -rw-r--r-- | scripts/port_from_sqlite_to_postgres.py | 290 |
1 files changed, 167 insertions, 123 deletions
diff --git a/scripts/port_from_sqlite_to_postgres.py b/scripts/port_from_sqlite_to_postgres.py index 596be75c49..1e52d82fe0 100644 --- a/scripts/port_from_sqlite_to_postgres.py +++ b/scripts/port_from_sqlite_to_postgres.py @@ -125,6 +125,12 @@ class Store(object): def execute(self, f, *args, **kwargs): return self.runInteraction(f.__name__, f, *args, **kwargs) + def execute_sql(self, sql, *args): + def r(txn): + txn.execute(sql, args) + return txn.fetchall() + return self.runInteraction("execute_sql", r) + def insert_many_txn(self, txn, table, headers, rows): sql = "INSERT INTO %s (%s) VALUES (%s)" % ( table, @@ -146,119 +152,9 @@ class Porter(object): def __init__(self, **kwargs): self.__dict__.update(kwargs) - def convert_rows(self, table, headers, rows): - bool_col_names = BOOLEAN_COLUMNS.get(table, []) - - bool_cols = [ - i for i, h in enumerate(headers) if h in bool_col_names - ] - - def conv(j, col): - if j in bool_cols: - return bool(col) - return col - - for i, row in enumerate(rows): - rows[i] = tuple( - self.postgres_store.database_engine.encode_parameter( - conv(j, col) - ) - for j, col in enumerate(row) - if j > 0 - ) - @defer.inlineCallbacks def setup_table(self, table): - def delete_all(txn): - txn.execute( - "DELETE FROM port_from_sqlite3 WHERE table_name = %s", - (table,) - ) - txn.execute("TRUNCATE %s CASCADE" % (table,)) - - def get_table_size(txn): - txn.execute("SELECT count(*) FROM %s" % (table,)) - size, = txn.fetchone() - return int(size) - - if table == "sent_transactions": - # This is a big table, and we really only need some of the recent - # data - - yield self.postgres_store.execute(delete_all) - - # Only save things from the last day - yesterday = int(time.time()*1000) - 86400000 - - # And save the max transaction id from each destination - select = ( - "SELECT rowid, * FROM sent_transactions WHERE rowid IN (" - "SELECT max(rowid) FROM sent_transactions" - " GROUP BY destination" - ")" - ) - - def r(txn): - txn.execute(select) - rows = txn.fetchall() - headers = [column[0] for column in txn.description] - - ts_ind = headers.index('ts') - - return headers, [r for r in rows if r[ts_ind] < yesterday] - - headers, rows = yield self.sqlite_store.runInteraction( - "select", r, - ) - - self.convert_rows(table, headers, rows) - - inserted_rows = len(rows) - max_inserted_rowid = max(r[0] for r in rows) - - def insert(txn): - self.postgres_store.insert_many_txn( - txn, table, headers[1:], rows - ) - - yield self.postgres_store.execute(insert) - - def get_start_id(txn): - txn.execute( - "SELECT rowid FROM sent_transactions WHERE ts >= ?" - " ORDER BY rowid ASC LIMIT 1", - (yesterday,) - ) - - rows = txn.fetchall() - if rows: - return rows[0][0] - else: - return 1 - - next_chunk = yield self.sqlite_store.execute(get_start_id) - next_chunk = max(max_inserted_rowid + 1, next_chunk) - - yield self.postgres_store._simple_insert( - table="port_from_sqlite3", - values={"table_name": table, "rowid": next_chunk} - ) - - def get_sent_table_size(txn): - txn.execute( - "SELECT count(*) FROM sent_transactions" - " WHERE ts >= ?", - (yesterday,) - ) - size, = txn.fetchone() - return int(size) - - table_size = yield self.sqlite_store.execute( - get_sent_table_size - ) - - table_size += inserted_rows - elif table in APPEND_ONLY_TABLES: + if table in APPEND_ONLY_TABLES: # It's safe to just carry on inserting. next_chunk = yield self.postgres_store._simple_select_one_onecol( table="port_from_sqlite3", @@ -267,28 +163,47 @@ class Porter(object): allow_none=True, ) + total_to_port = None if next_chunk is None: - yield self.postgres_store._simple_insert( - table="port_from_sqlite3", - values={"table_name": table, "rowid": 1} - ) + if table == "sent_transactions": + next_chunk, already_ported, total_to_port = ( + yield self._setup_sent_transactions() + ) + else: + yield self.postgres_store._simple_insert( + table="port_from_sqlite3", + values={"table_name": table, "rowid": 1} + ) - next_chunk = 1 + next_chunk = 1 + already_ported = 0 - table_size = yield self.sqlite_store.execute(get_table_size) + if total_to_port is None: + already_ported, total_to_port = yield self._get_total_count_to_port( + table, next_chunk + ) else: + def delete_all(txn): + txn.execute( + "DELETE FROM port_from_sqlite3 WHERE table_name = %s", + (table,) + ) + txn.execute("TRUNCATE %s CASCADE" % (table,)) + yield self.postgres_store.execute(delete_all) - self.postgres_store._simple_insert( + + yield self.postgres_store._simple_insert( table="port_from_sqlite3", values={"table_name": table, "rowid": 0} ) - table_size = yield self.sqlite_store.execute(get_table_size) next_chunk = 1 - postgres_size = yield self.postgres_store.execute(get_table_size) + already_ported, total_to_port = yield self._get_total_count_to_port( + table, next_chunk + ) - defer.returnValue((table, postgres_size, table_size, next_chunk)) + defer.returnValue((table, already_ported, total_to_port, next_chunk)) @defer.inlineCallbacks def handle_table(self, table, postgres_size, table_size, next_chunk): @@ -315,7 +230,7 @@ class Porter(object): if rows: next_chunk = rows[-1][0] + 1 - self.convert_rows(table, headers, rows) + self._convert_rows(table, headers, rows) def insert(txn): self.postgres_store.insert_many_txn( @@ -414,7 +329,7 @@ class Porter(object): except Exception as e: logger.info("Failed to create port table: %s", e) - self.progress.set_state("Preparing tables") + self.progress.set_state("Setting up") # Set up tables. setup_res = yield defer.gatherResults( @@ -444,6 +359,135 @@ class Porter(object): finally: reactor.stop() + def _convert_rows(self, table, headers, rows): + bool_col_names = BOOLEAN_COLUMNS.get(table, []) + + bool_cols = [ + i for i, h in enumerate(headers) if h in bool_col_names + ] + + def conv(j, col): + if j in bool_cols: + return bool(col) + return col + + for i, row in enumerate(rows): + rows[i] = tuple( + self.postgres_store.database_engine.encode_parameter( + conv(j, col) + ) + for j, col in enumerate(row) + if j > 0 + ) + + @defer.inlineCallbacks + def _setup_sent_transactions(self): + # Only save things from the last day + yesterday = int(time.time()*1000) - 86400000 + + # And save the max transaction id from each destination + select = ( + "SELECT rowid, * FROM sent_transactions WHERE rowid IN (" + "SELECT max(rowid) FROM sent_transactions" + " GROUP BY destination" + ")" + ) + + def r(txn): + txn.execute(select) + rows = txn.fetchall() + headers = [column[0] for column in txn.description] + + ts_ind = headers.index('ts') + + return headers, [r for r in rows if r[ts_ind] < yesterday] + + headers, rows = yield self.sqlite_store.runInteraction( + "select", r, + ) + + self._convert_rows("sent_transactions", headers, rows) + + inserted_rows = len(rows) + max_inserted_rowid = max(r[0] for r in rows) + + def insert(txn): + self.postgres_store.insert_many_txn( + txn, "sent_transactions", headers[1:], rows + ) + + yield self.postgres_store.execute(insert) + + def get_start_id(txn): + txn.execute( + "SELECT rowid FROM sent_transactions WHERE ts >= ?" + " ORDER BY rowid ASC LIMIT 1", + (yesterday,) + ) + + rows = txn.fetchall() + if rows: + return rows[0][0] + else: + return 1 + + next_chunk = yield self.sqlite_store.execute(get_start_id) + next_chunk = max(max_inserted_rowid + 1, next_chunk) + + yield self.postgres_store._simple_insert( + table="port_from_sqlite3", + values={"table_name": "sent_transactions", "rowid": next_chunk} + ) + + def get_sent_table_size(txn): + txn.execute( + "SELECT count(*) FROM sent_transactions" + " WHERE ts >= ?", + (yesterday,) + ) + size, = txn.fetchone() + return int(size) + + remaining_count = yield self.sqlite_store.execute( + get_sent_table_size + ) + + total_count = remaining_count + inserted_rows + + defer.returnValue((next_chunk, remaining_count, total_count)) + + @defer.inlineCallbacks + def _get_remaining_count_to_port(self, table, next_chunk): + rows = yield self.sqlite_store.execute_sql( + "SELECT count(*) FROM %s WHERE rowid >= ?" % (table,), + next_chunk, + ) + + defer.returnValue(rows[0][0]) + + @defer.inlineCallbacks + def _get_already_ported_count(self, table): + rows = yield self.postgres_store.execute_sql( + "SELECT count(*) FROM %s" % (table,), + ) + + defer.returnValue(rows[0][0]) + + @defer.inlineCallbacks + def _get_total_count_to_port(self, table, next_chunk): + remaining, done = yield defer.gatherResults( + [ + self._get_remaining_count_to_port(table, next_chunk), + self._get_already_ported_count(table), + ], + consumeErrors=True, + ) + + remaining = int(remaining) if remaining else 0 + done = int(done) if done else 0 + + defer.returnValue((done, remaining + done)) + ############################################## ###### The following is simply UI stuff ###### |