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doc/zmq.md
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is assumed that the ZeroMQ port is exposed only to trusted entities, | is assumed that the ZeroMQ port is exposed only to trusted entities, | ||||
using other means such as firewalling. | using other means such as firewalling. | ||||
Note that when the block chain tip changes, a reorganisation may occur | Note that when the block chain tip changes, a reorganisation may occur | ||||
and just the tip will be notified. It is up to the subscriber to | and just the tip will be notified. It is up to the subscriber to | ||||
retrieve the chain from the last known block to the new tip. | retrieve the chain from the last known block to the new tip. | ||||
There are several possibilities that ZMQ notification can get lost | There are several possibilities that ZMQ notification can get lost | ||||
during transmission depending on the communication type your are | during transmission depending on the communication type you are | ||||
using. Bitcoind appends an up-counting sequence number to each | using. Bitcoind appends an up-counting sequence number to each | ||||
notification which allows listeners to detect lost notifications. | notification which allows listeners to detect lost notifications. |