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Merge pull request #982 from matrix-org/erikj/fix_port_script
Port script: Handle the fact that some tables have negative rowid rows
This commit is contained in:
Erik Johnston
GitHub
commit
ea0b767114
@ -34,7 +34,7 @@ logger = logging.getLogger("synapse_port_db")
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BOOLEAN_COLUMNS = {
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"events": ["processed", "outlier"],
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"events": ["processed", "outlier", "contains_url"],
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"rooms": ["is_public"],
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"event_edges": ["is_state"],
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"presence_list": ["accepted"],
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@ -92,8 +92,12 @@ class Store(object):
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_simple_select_onecol_txn = SQLBaseStore.__dict__["_simple_select_onecol_txn"]
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_simple_select_onecol = SQLBaseStore.__dict__["_simple_select_onecol"]
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_simple_select_one = SQLBaseStore.__dict__["_simple_select_one"]
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_simple_select_one_txn = SQLBaseStore.__dict__["_simple_select_one_txn"]
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_simple_select_one_onecol = SQLBaseStore.__dict__["_simple_select_one_onecol"]
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_simple_select_one_onecol_txn = SQLBaseStore.__dict__["_simple_select_one_onecol_txn"]
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_simple_select_one_onecol_txn = SQLBaseStore.__dict__[
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"_simple_select_one_onecol_txn"
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]
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_simple_update_one = SQLBaseStore.__dict__["_simple_update_one"]
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_simple_update_one_txn = SQLBaseStore.__dict__["_simple_update_one_txn"]
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@ -158,31 +162,40 @@ class Porter(object):
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def setup_table(self, table):
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if table in APPEND_ONLY_TABLES:
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# It's safe to just carry on inserting.
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next_chunk = yield self.postgres_store._simple_select_one_onecol(
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row = yield self.postgres_store._simple_select_one(
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table="port_from_sqlite3",
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keyvalues={"table_name": table},
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retcol="rowid",
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retcols=("forward_rowid", "backward_rowid"),
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allow_none=True,
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)
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total_to_port = None
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if next_chunk is None:
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if row is None:
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if table == "sent_transactions":
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next_chunk, already_ported, total_to_port = (
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forward_chunk, already_ported, total_to_port = (
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yield self._setup_sent_transactions()
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)
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backward_chunk = 0
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else:
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yield self.postgres_store._simple_insert(
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table="port_from_sqlite3",
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values={"table_name": table, "rowid": 1}
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values={
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"table_name": table,
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"forward_rowid": 1,
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"backward_rowid": 0,
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}
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)
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next_chunk = 1
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forward_chunk = 1
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backward_chunk = 0
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already_ported = 0
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else:
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forward_chunk = row["forward_rowid"]
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backward_chunk = row["backward_rowid"]
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if total_to_port is None:
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already_ported, total_to_port = yield self._get_total_count_to_port(
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table, next_chunk
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table, forward_chunk, backward_chunk
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)
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else:
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def delete_all(txn):
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@ -196,46 +209,85 @@ class Porter(object):
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yield self.postgres_store._simple_insert(
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table="port_from_sqlite3",
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values={"table_name": table, "rowid": 0}
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values={
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"table_name": table,
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"forward_rowid": 1,
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"backward_rowid": 0,
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}
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)
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next_chunk = 1
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forward_chunk = 1
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backward_chunk = 0
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already_ported, total_to_port = yield self._get_total_count_to_port(
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table, next_chunk
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table, forward_chunk, backward_chunk
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)
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defer.returnValue((table, already_ported, total_to_port, next_chunk))
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defer.returnValue(
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(table, already_ported, total_to_port, forward_chunk, backward_chunk)
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)
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@defer.inlineCallbacks
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def handle_table(self, table, postgres_size, table_size, next_chunk):
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def handle_table(self, table, postgres_size, table_size, forward_chunk,
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backward_chunk):
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if not table_size:
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return
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self.progress.add_table(table, postgres_size, table_size)
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if table == "event_search":
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yield self.handle_search_table(postgres_size, table_size, next_chunk)
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yield self.handle_search_table(
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postgres_size, table_size, forward_chunk, backward_chunk
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)
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return
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select = (
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forward_select = (
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"SELECT rowid, * FROM %s WHERE rowid >= ? ORDER BY rowid LIMIT ?"
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% (table,)
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)
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backward_select = (
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"SELECT rowid, * FROM %s WHERE rowid <= ? ORDER BY rowid LIMIT ?"
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% (table,)
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)
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do_forward = [True]
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do_backward = [True]
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while True:
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def r(txn):
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txn.execute(select, (next_chunk, self.batch_size,))
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rows = txn.fetchall()
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headers = [column[0] for column in txn.description]
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forward_rows = []
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backward_rows = []
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if do_forward[0]:
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txn.execute(forward_select, (forward_chunk, self.batch_size,))
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forward_rows = txn.fetchall()
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if not forward_rows:
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do_forward[0] = False
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return headers, rows
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if do_backward[0]:
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txn.execute(backward_select, (backward_chunk, self.batch_size,))
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backward_rows = txn.fetchall()
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if not backward_rows:
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do_backward[0] = False
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headers, rows = yield self.sqlite_store.runInteraction("select", r)
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if forward_rows or backward_rows:
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headers = [column[0] for column in txn.description]
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else:
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headers = None
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if rows:
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next_chunk = rows[-1][0] + 1
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return headers, forward_rows, backward_rows
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headers, frows, brows = yield self.sqlite_store.runInteraction(
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"select", r
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)
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if frows or brows:
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if frows:
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forward_chunk = max(row[0] for row in frows) + 1
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if brows:
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backward_chunk = min(row[0] for row in brows) - 1
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rows = frows + brows
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self._convert_rows(table, headers, rows)
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def insert(txn):
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@ -247,7 +299,10 @@ class Porter(object):
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txn,
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table="port_from_sqlite3",
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keyvalues={"table_name": table},
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updatevalues={"rowid": next_chunk},
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updatevalues={
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"forward_rowid": forward_chunk,
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"backward_rowid": backward_chunk,
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},
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)
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yield self.postgres_store.execute(insert)
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@ -259,7 +314,8 @@ class Porter(object):
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return
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@defer.inlineCallbacks
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def handle_search_table(self, postgres_size, table_size, next_chunk):
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def handle_search_table(self, postgres_size, table_size, forward_chunk,
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backward_chunk):
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select = (
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"SELECT es.rowid, es.*, e.origin_server_ts, e.stream_ordering"
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" FROM event_search as es"
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@ -270,7 +326,7 @@ class Porter(object):
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while True:
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def r(txn):
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txn.execute(select, (next_chunk, self.batch_size,))
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txn.execute(select, (forward_chunk, self.batch_size,))
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rows = txn.fetchall()
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headers = [column[0] for column in txn.description]
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@ -279,7 +335,7 @@ class Porter(object):
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headers, rows = yield self.sqlite_store.runInteraction("select", r)
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if rows:
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next_chunk = rows[-1][0] + 1
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forward_chunk = rows[-1][0] + 1
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# We have to treat event_search differently since it has a
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# different structure in the two different databases.
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@ -312,7 +368,10 @@ class Porter(object):
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txn,
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table="port_from_sqlite3",
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keyvalues={"table_name": "event_search"},
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updatevalues={"rowid": next_chunk},
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updatevalues={
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"forward_rowid": forward_chunk,
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"backward_rowid": backward_chunk,
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},
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)
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yield self.postgres_store.execute(insert)
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@ -324,7 +383,6 @@ class Porter(object):
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else:
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return
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def setup_db(self, db_config, database_engine):
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db_conn = database_engine.module.connect(
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**{
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@ -395,10 +453,32 @@ class Porter(object):
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txn.execute(
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"CREATE TABLE port_from_sqlite3 ("
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" table_name varchar(100) NOT NULL UNIQUE,"
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" rowid bigint NOT NULL"
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" forward_rowid bigint NOT NULL,"
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" backward_rowid bigint NOT NULL"
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")"
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)
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# The old port script created a table with just a "rowid" column.
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# We want people to be able to rerun this script from an old port
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# so that they can pick up any missing events that were not
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# ported across.
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def alter_table(txn):
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txn.execute(
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"ALTER TABLE IF EXISTS port_from_sqlite3"
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" RENAME rowid TO forward_rowid"
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)
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txn.execute(
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"ALTER TABLE IF EXISTS port_from_sqlite3"
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" ADD backward_rowid bigint NOT NULL DEFAULT 0"
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)
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try:
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yield self.postgres_store.runInteraction(
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"alter_table", alter_table
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)
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except Exception as e:
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logger.info("Failed to create port table: %s", e)
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try:
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yield self.postgres_store.runInteraction(
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"create_port_table", create_port_table
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@ -458,7 +538,7 @@ class Porter(object):
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@defer.inlineCallbacks
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def _setup_sent_transactions(self):
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# Only save things from the last day
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yesterday = int(time.time()*1000) - 86400000
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yesterday = int(time.time() * 1000) - 86400000
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# And save the max transaction id from each destination
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select = (
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@ -514,7 +594,11 @@ class Porter(object):
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yield self.postgres_store._simple_insert(
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table="port_from_sqlite3",
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values={"table_name": "sent_transactions", "rowid": next_chunk}
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values={
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"table_name": "sent_transactions",
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"forward_rowid": next_chunk,
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"backward_rowid": 0,
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}
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)
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def get_sent_table_size(txn):
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@ -535,13 +619,18 @@ class Porter(object):
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defer.returnValue((next_chunk, inserted_rows, total_count))
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@defer.inlineCallbacks
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def _get_remaining_count_to_port(self, table, next_chunk):
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rows = yield self.sqlite_store.execute_sql(
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def _get_remaining_count_to_port(self, table, forward_chunk, backward_chunk):
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frows = yield self.sqlite_store.execute_sql(
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"SELECT count(*) FROM %s WHERE rowid >= ?" % (table,),
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next_chunk,
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forward_chunk,
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)
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defer.returnValue(rows[0][0])
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brows = yield self.sqlite_store.execute_sql(
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"SELECT count(*) FROM %s WHERE rowid <= ?" % (table,),
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backward_chunk,
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)
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defer.returnValue(frows[0][0] + brows[0][0])
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@defer.inlineCallbacks
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def _get_already_ported_count(self, table):
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@ -552,10 +641,10 @@ class Porter(object):
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defer.returnValue(rows[0][0])
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@defer.inlineCallbacks
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def _get_total_count_to_port(self, table, next_chunk):
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def _get_total_count_to_port(self, table, forward_chunk, backward_chunk):
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remaining, done = yield defer.gatherResults(
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[
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self._get_remaining_count_to_port(table, next_chunk),
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self._get_remaining_count_to_port(table, forward_chunk, backward_chunk),
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self._get_already_ported_count(table),
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],
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consumeErrors=True,
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@ -686,7 +775,7 @@ class CursesProgress(Progress):
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color = curses.color_pair(2) if perc == 100 else curses.color_pair(1)
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self.stdscr.addstr(
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i+2, left_margin + max_len - len(table),
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i + 2, left_margin + max_len - len(table),
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table,
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curses.A_BOLD | color,
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)
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@ -694,18 +783,18 @@ class CursesProgress(Progress):
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size = 20
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progress = "[%s%s]" % (
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"#" * int(perc*size/100),
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" " * (size - int(perc*size/100)),
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"#" * int(perc * size / 100),
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" " * (size - int(perc * size / 100)),
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)
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self.stdscr.addstr(
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i+2, left_margin + max_len + middle_space,
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i + 2, left_margin + max_len + middle_space,
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"%s %3d%% (%d/%d)" % (progress, perc, data["num_done"], data["total"]),
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)
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if self.finished:
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self.stdscr.addstr(
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rows-1, 0,
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rows - 1, 0,
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"Press any key to exit...",
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)
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