influxdb replication

can see a change in traditional replication, observed through Binlog:#171116 19:16:57 Server ID 2 end_log_pos 16188 CRC32 0x75584212 anonymous_gtidlast_committed=50 sequence_number=51#171116 19:17:03 Server ID 2 end_log_pos 16522 CRC32 0x3b42637e anonymous_gtidlast_committed=51 sequence_number=52#171116 19:19:54 Server ID 2 end_log_pos 16851 CRC32 0x08383e43 anonymous_gtidlast_committed=52 sequence_number=53#171116 19:19:59 Server ID 2

Tags: mysql replication gtid1, must master the library two data is consistent, that is, the current from the library no data delay situation. And the main library can no longer have data updates. Standby stop slave thread: stop slave;Main Library: Show master status;Prepare library: show slave status;The relay_master_log_file of the repository is the same as the main library's file, and the Exec_master_log_pos of the repository is the same as the posi

script will be executed at each restart point. So what is the beginning of the heavy? Each time PostgreSQL transitions from file-based replay to stream-based replay, you are facing a heavy starting point. In fact, starting a stream copy again is considered to be a boot point.Once the start point arrives, you can have PostgreSQL perform some cleanup (or anything else). It is easy to clean out old xlog or trigger some notifications.The following script shows how you can clean up any xlog of the d

| 359 |TABLE_ID: -Flags:stmt_end_f| |Host2-Bin.000001 | 359 |Xid| 1 | 390 | COMMIT /*xid=423*/ | |Host2-Bin.000001 | 390 |Stop| 2 | 413 | | +------------------+-----+----------------+-----------+-------------+----------------------------------------- --------------------------+ 8Rowsinch Set(0.00Sec The following are some of the deletions are bin

1. Replication overview1.1. Replication-Resolved issuesData replication technology has some of the following features:(1) Data distribution(2) Load balancing (load Balancing)(3) Backup(4) High availability (Hi availability) and fault tolerance1.2. How replication worksFrom the top,

from that of the shallow copy. The deep copy creates a new object andIn the original object, the corresponding field is the same (the content is the same), that is, this reference is different from the original object reference, we changeThis field in the object does not affect the content of the corresponding field in the original object. Shallow copy: to implement shallow copy, you must use the memberwiseclone method of the object class to create a superficial copy.Deep

(1) shallow copy (shallow clone)All the variables of the Copied object contain the same value as the original object, and allStill point to the original object. In other words, the shortest replication only copies the object to be considered, instead of copying the objectThe referenced object. (2) Deep replication (deep cloning)All variables of the Copied object contain the same value as the original obje

MySQL master-slave replication:Lab Environment:Linux CentOS7 two: 192.168.230.10 (master)----192.168.230.11 (from) (System installed, switch off the firewall or configure the firewall).MySQL 5.7 (Download the official Yum source, yum install-y MySQL mysql-server)To start the configuration:MySQL configuration files in general Linux are all in/ETC/MY.CNF (the configuration file in Windows is Mysql.ini)server-ID1 (guaranteed unique in the entire MySQL cluster) log-bin = binlog (binary) log-bin-ind

check bit, if the network transmission problems can be resumed, such as a breakpoint,Three. Master the Binlog file through a line called dump path to Slave, slave will receive an event written to a file called Relay log (relay log), and then according to relay log with a call applier something to commit ( Write datafile, and Binlog)The Binlog and relay log content is not always the same, because you can set the eventsize if there is a thing on master that writes to the Binlog so that the size e

Label:4.5 Make stream replication more robustWhen connecting to master, the first thing slave to do is catch up with master. But is this going to work all the time? We've seen that we can use a mix of stream-based and file-based settings. This gives us some extra security to prevent the flow from not working.In real-world scenarios, the two methods of transmitting xlog may be overly complex. In many cases, using a stream is sufficient. The crux of the