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Analysis Mysqlbinlog output for encrypted binary log #Q> insert into tab1 values (3,'row 003') #190912 17:36:35 server id 10221 end_log_pos 980 CRC32 0x53bcb3d3 Table_map: `test`.`tab1` mapped to number 19 # at 940 #190912 17:36:35 server id 10221 end_log_pos 1026 CRC32 0xf2ae5136 Write_rows: table id 19 flags: STMT_END_F Here we can see Table_map_log_event ends at 980 but Next event starts at 940. And the reason for that is we do not send START_ENCRYPTION_EVENT to the slave Solution:- Send Start_encryption_log_event as Ignorable_log_event to slave(mysqlbinlog), So that mysqlbinlog can update its log_pos. Since Slave can request multiple FORMAT_DESCRIPTION_EVENT while master does not have so We only update slave master pos when master actually have the FORMAT_DESCRIPTION_EVENT. Similar logic should be applied for START_ENCRYPTION_EVENT. Also added the test case when new server reads the data from old server which does not send START_ENCRYPTION_EVENT to slave. Master Slave Upgrade Scenario. When Slave is updated first, Slave will have extra logic of handling START_ENCRYPTION_EVENT But master willnot be sending START_ENCRYPTION_EVENT. So there will be no issue. When Master is updated first, It will send START_ENCRYPTION_EVENT to slave , But slave will ignore this event in queue_event.
24 lines
733 B
Text
24 lines
733 B
Text
source include/have_log_bin.inc;
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source include/have_debug.inc;
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let datadir=`select @@datadir`;
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RESET MASTER;
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CREATE TABLE t1 (a INT);
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INSERT INTO t1 VALUES (1),(2),(3);
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REPLACE INTO t1 VALUES (4);
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DROP TABLE t1;
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FLUSH LOGS;
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let filename= master-bin.000001;
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let local=$datadir/$filename;
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let remote=--read-from-remote-server --protocol=tcp --host=127.0.0.1 --port=$MASTER_MYPORT -uroot $filename;
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let outfile=$MYSQLTEST_VARDIR/tmp/binlog_enc.sql;
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--error 1
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exec $MYSQL_BINLOG $local > $outfile;
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exec $MYSQL_BINLOG $local --force-read >> $outfile;
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exec $MYSQL_BINLOG $remote >> $outfile;
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--let SEARCH_FILE= $outfile
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--let SEARCH_PATTERN= Ignorable event type 164.*
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--source include/search_pattern_in_file.inc
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remove_file $outfile;
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