mirror of https://github.com/citusdata/citus.git
414 lines
17 KiB
Plaintext
414 lines
17 KiB
Plaintext
SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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-- do not cache any connections
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SET citus.max_cached_conns_per_worker TO 0;
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SET citus.shard_count = 1;
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SET citus.shard_replication_factor = 2; -- one shard per worker
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SET citus.multi_shard_commit_protocol TO '1pc';
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SET citus.next_shard_id TO 100400;
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SET citus.max_cached_conns_per_worker TO 0;
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ALTER SEQUENCE pg_catalog.pg_dist_placement_placementid_seq RESTART 100;
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CREATE TABLE copy_test (key int, value int);
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SELECT create_distributed_table('copy_test', 'key');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT citus.clear_network_traffic();
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clear_network_traffic
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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SELECT count(1) FROM copy_test;
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count
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---------------------------------------------------------------------
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4
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(1 row)
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SELECT citus.dump_network_traffic();
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dump_network_traffic
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---------------------------------------------------------------------
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(0,coordinator,"[initial message]")
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(0,worker,"['AuthenticationOk()', 'ParameterStatus(application_name=citus)', 'ParameterStatus(client_encoding=UTF8)', 'ParameterStatus(DateStyle=ISO, MDY)', 'ParameterStatus(integer_datetimes=on)', 'ParameterStatus(IntervalStyle=postgres)', 'ParameterStatus(is_superuser=on)', 'ParameterStatus(server_encoding=UTF8)', 'ParameterStatus(server_version=XXX)', 'ParameterStatus(session_authorization=postgres)', 'ParameterStatus(standard_conforming_strings=on)', 'ParameterStatus(TimeZone=XXX)', 'BackendKeyData(XXX)', 'ReadyForQuery(state=idle)']")
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(0,coordinator,"[""Query(query=BEGIN TRANSACTION ISOLATION LEVEL READ COMMITTED;SELECT assign_distributed_transaction_id(0, XX, 'XXXX-XX-XX XX:XX:XX.XXXXXX-XX');)""]")
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(0,worker,"['CommandComplete(command=BEGIN)', ""RowDescription(fieldcount=1,fields=['F(name=assign_distributed_transaction_id,tableoid=0,colattrnum=0,typoid=2278,typlen=4,typmod=-1,format_code=0)'])"", 'DataRow(columncount=1,columns=[""C(length=0,value=b\\'\\')""])', 'CommandComplete(command=SELECT 1)', 'ReadyForQuery(state=in_transaction_block)']")
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(0,coordinator,"[""Query(query=COPY public.copy_test_XXXXXX (key, value) FROM STDIN WITH (format 'binary'))""]")
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(0,worker,"[""Backend(type=G,body=b'\\\\x01\\\\x00\\\\x02\\\\x00\\\\x01\\\\x00\\\\x01')""]")
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(0,coordinator,"[""CopyData(data=b'PGCOPY\\\\n\\\\xff\\\\r\\\\n\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00')"", ""CopyData(data=b'\\\\x00\\\\x02\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\x00')"", ""CopyData(data=b'\\\\x00\\\\x02\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\x01\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\x01')"", ""CopyData(data=b'\\\\x00\\\\x02\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\x02\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\x04')"", ""CopyData(data=b'\\\\x00\\\\x02\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\x03\\\\x00\\\\x00\\\\x00\\\\x04\\\\x00\\\\x00\\\\x00\\\\t')"", ""CopyData(data=b'\\\\xff\\\\xff')"", 'CopyDone()']")
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(0,worker,"['CommandComplete(command=COPY 4)', 'ReadyForQuery(state=in_transaction_block)']")
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(0,coordinator,"['Query(query=COMMIT)']")
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(0,worker,"['CommandComplete(command=COMMIT)', 'ReadyForQuery(state=idle)']")
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(1,coordinator,"[initial message]")
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(1,worker,"['AuthenticationOk()', 'ParameterStatus(application_name=citus)', 'ParameterStatus(client_encoding=UTF8)', 'ParameterStatus(DateStyle=ISO, MDY)', 'ParameterStatus(integer_datetimes=on)', 'ParameterStatus(IntervalStyle=postgres)', 'ParameterStatus(is_superuser=on)', 'ParameterStatus(server_encoding=UTF8)', 'ParameterStatus(server_version=XXX)', 'ParameterStatus(session_authorization=postgres)', 'ParameterStatus(standard_conforming_strings=on)', 'ParameterStatus(TimeZone=XXX)', 'BackendKeyData(XXX)', 'ReadyForQuery(state=idle)']")
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(1,coordinator,"['Query(query=SELECT count(1) AS count FROM public.copy_test_XXXXXX copy_test)']")
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(1,worker,"[""RowDescription(fieldcount=1,fields=['F(name=count,tableoid=0,colattrnum=0,typoid=20,typlen=8,typmod=-1,format_code=0)'])"", 'DataRow(columncount=1,columns=[""C(length=0,value=b\\'\\')""])', 'CommandComplete(command=SELECT 1)', 'ReadyForQuery(state=idle)']")
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(14 rows)
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-- ==== kill the connection when we try to start a transaction ====
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-- the query should abort
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SELECT citus.mitmproxy('conn.onQuery(query="assign_distributed_transaction").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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COPY copy_test, line 1: "0, 0"
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ERROR: failure on connection marked as essential: localhost:xxxxx
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CONTEXT: COPY copy_test, line 1: "0, 0"
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-- ==== kill the connection when we try to start the COPY ====
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-- the query should abort
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SELECT citus.mitmproxy('conn.onQuery(query="FROM STDIN WITH").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:xxxxx
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COPY copy_test, line 1: "0, 0"
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-- ==== kill the connection when we first start sending data ====
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-- the query should abort
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SELECT citus.mitmproxy('conn.onCopyData().killall()'); -- raw rows from the client
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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ERROR: failed to COPY to shard xxxxx on localhost:xxxxx
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-- ==== kill the connection when the worker confirms it's received the data ====
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-- the query should abort
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SELECT citus.mitmproxy('conn.onCommandComplete(command="COPY").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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ERROR: failed to COPY to shard xxxxx on localhost:xxxxx
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-- ==== kill the connection when we try to send COMMIT ====
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-- the query should succeed, and the placement should be marked inactive
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT count(1) FROM pg_dist_shard_placement WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'copy_test'::regclass
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) AND shardstate = 3;
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count
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---------------------------------------------------------------------
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0
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(1 row)
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SELECT count(1) FROM copy_test;
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count
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---------------------------------------------------------------------
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4
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(1 row)
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SELECT citus.mitmproxy('conn.onQuery(query="^COMMIT$").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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WARNING: failed to commit transaction on localhost:xxxxx
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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-- the shard is marked invalid
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT count(1) FROM pg_dist_shard_placement WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'copy_test'::regclass
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) AND shardstate = 3;
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count
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---------------------------------------------------------------------
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1
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(1 row)
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SELECT count(1) FROM copy_test;
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count
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---------------------------------------------------------------------
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8
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(1 row)
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-- ==== clean up a little bit before running the next test ====
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UPDATE pg_dist_shard_placement SET shardstate = 1
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WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'copy_test'::regclass
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);
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TRUNCATE copy_test;
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-- ==== try to COPY invalid data ====
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-- here the coordinator actually sends the data, but then unexpectedly closes the
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-- connection when it notices the data stream is broken. Crucially, it closes the
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-- connection before sending COMMIT, so no data makes it into the worker.
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9 && echo 10' WITH CSV;
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ERROR: missing data for column "value"
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CONTEXT: COPY copy_test, line 5: "10"
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-- kill the connection if the coordinator sends COMMIT. It doesn't, so nothing changes
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SELECT citus.mitmproxy('conn.onQuery(query="^COMMIT$").kill()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9 && echo 10' WITH CSV;
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ERROR: missing data for column "value"
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CONTEXT: COPY copy_test, line 5: "10"
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SELECT * FROM copy_test ORDER BY key, value;
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key | value
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---------------------------------------------------------------------
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(0 rows)
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-- ==== clean up some more to prepare for tests with only one replica ====
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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TRUNCATE copy_test;
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UPDATE pg_dist_shard_placement SET shardstate = 3 WHERE nodeport = :worker_1_port;
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SELECT * FROM pg_dist_shard_placement WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'copy_test'::regclass
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) ORDER BY nodeport, placementid;
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shardid | shardstate | shardlength | nodename | nodeport | placementid
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---------------------------------------------------------------------
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100400 | 1 | 0 | localhost | 9060 | 100
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100400 | 3 | 0 | localhost | 57637 | 101
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(2 rows)
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-- ==== okay, run some tests where there's only one active shard ====
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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SELECT * FROM copy_test;
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key | value
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---------------------------------------------------------------------
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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(4 rows)
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-- the worker is unreachable
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SELECT citus.mitmproxy('conn.killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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WARNING: connection to the remote node localhost:xxxxx failed with the following error: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: COPY copy_test, line 1: "0, 0"
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ERROR: could not connect to any active placements
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CONTEXT: COPY copy_test, line 1: "0, 0"
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM copy_test;
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key | value
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---------------------------------------------------------------------
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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(4 rows)
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-- the first message fails
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SELECT citus.mitmproxy('conn.onQuery(query="assign_distributed_transaction_id").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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COPY copy_test, line 1: "0, 0"
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ERROR: failure on connection marked as essential: localhost:xxxxx
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CONTEXT: COPY copy_test, line 1: "0, 0"
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM copy_test;
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key | value
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---------------------------------------------------------------------
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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(4 rows)
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-- the COPY message fails
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SELECT citus.mitmproxy('conn.onQuery(query="FROM STDIN WITH").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:xxxxx
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COPY copy_test, line 1: "0, 0"
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM copy_test;
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key | value
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---------------------------------------------------------------------
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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(4 rows)
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-- the COPY data fails
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SELECT citus.mitmproxy('conn.onCopyData().killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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ERROR: failed to COPY to shard xxxxx on localhost:xxxxx
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM copy_test;
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key | value
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---------------------------------------------------------------------
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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(4 rows)
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-- the COMMIT fails
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SELECT citus.mitmproxy('conn.onQuery(query="^COMMIT$").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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WARNING: failed to commit transaction on localhost:xxxxx
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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WARNING: could not commit transaction for shard xxxxx on any active node
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ERROR: could not commit transaction on any active node
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM copy_test;
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key | value
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---------------------------------------------------------------------
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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(4 rows)
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-- the placement is not marked invalid
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SELECT * FROM pg_dist_shard_placement WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'copy_test'::regclass
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) ORDER BY nodeport, placementid;
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shardid | shardstate | shardlength | nodename | nodeport | placementid
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---------------------------------------------------------------------
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100400 | 1 | 0 | localhost | 9060 | 100
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100400 | 3 | 0 | localhost | 57637 | 101
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(2 rows)
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-- the COMMIT makes it through but the connection dies before we get a response
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SELECT citus.mitmproxy('conn.onCommandComplete(command="COMMIT").killall()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test FROM PROGRAM 'echo 0, 0 && echo 1, 1 && echo 2, 4 && echo 3, 9' WITH CSV;
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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WARNING: failed to commit transaction on localhost:xxxxx
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WARNING: connection not open
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CONTEXT: while executing command on localhost:xxxxx
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WARNING: could not commit transaction for shard xxxxx on any active node
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ERROR: could not commit transaction on any active node
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM pg_dist_shard_placement WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'copy_test'::regclass
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) ORDER BY nodeport, placementid;
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shardid | shardstate | shardlength | nodename | nodeport | placementid
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---------------------------------------------------------------------
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100400 | 1 | 0 | localhost | 9060 | 100
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100400 | 3 | 0 | localhost | 57637 | 101
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(2 rows)
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SELECT * FROM copy_test;
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key | value
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---------------------------------------------------------------------
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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0 | 0
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1 | 1
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2 | 4
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3 | 9
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(8 rows)
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-- ==== Clean up, we're done here ====
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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---------------------------------------------------------------------
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(1 row)
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DROP TABLE copy_test;
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