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56 lines
2.0 KiB
Markdown
56 lines
2.0 KiB
Markdown
collective(1) -- Check and manage a confluent collective
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==============================
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## SYNOPSIS
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`collective invite <server>`
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`collective join <server> [-i TOKEN]`
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`collective show`
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`collective gencert`
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## DESCRIPTION
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**collective** helps manage the collective mode of confluent, where multiple
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confluent servers are linked together to act as one. For example, the procedure to set up
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a collective to run on three servers called mgt1, mgt2, and mgt3, first install and start
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confluent as usual on the three servers. On mgt1, run `collective invite mgt2` and an
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invitation token will be output. On mgt2, either run `collective join mgt1` to paste
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the token interactively, or `collective join mgt1 -i <token>`. At this point, either
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mgt1 or mgt2 can bring in mgt3. For example on mgt2 run `collective invite mgt3` and
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on mgt3 run `collective join mgt2 -i <token>`
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This can be linked together in the following manner with ssh:
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on mgt1:
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`# ssh mgt2 collective join mgt1 -i $(collective invite mgt2)`
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Note that a collective is only redundant with 3 or more members. The collective
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will function so long as more than half of the members are online. A collective
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of two members is supported, but without redundancy.
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Also note that the collective leader role is dynamic, but has no impact on interacting
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with confluent. It is merely an internal role that can dynamically change depending
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on circumstances.
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## OPTIONS
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* `-i`:
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Provide the token as an argument rather than interactively.
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## EXAMPLES
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* Inviting a server called mgt2:
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`# collective invite mgt2`
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`bWd0MkA+BNQ6XAxMXlqJJa+EQRlihL/k9xCXnasgSQXZr989Pa1/ln7G3e1Ncxx6BMzMqqreHJVkPr2FrzjNit/UgHlg`
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* On mgt2, joining mgt1:
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`# collective join mgt1 -i bWd0MkA+BNQ6XAxMXlqJJa+EQRlihL/k9xCXnasgSQXZr989Pa1/ln7G3e1Ncxx6BMzMqqreHJVkPr2FrzjNit/UgHlg`
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`Success`
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* Showing the collective state:
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`# collective show`
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`Quorum: True`
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`Leader: mgt1`
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`Active collective members:`
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` mgt2`
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