Add support for placement tags and preferred to metaleader stepdown request
#6282
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This makes it possible to nominate a JetStream metaleader transfer to a specific server or servers that match a specific set of tags. Also factors out some of the logic for making the preferred leader decision so that it could be reused for stream & consumer stepdowns. Signed-off-by: Neil Twigg <[email protected]>
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Dec 19, 2024
… stepdown requests (#6284) Like #6282, this adds preferred placement support to stream and consumer stepdowns too. Signed-off-by: Neil Twigg <[email protected]>
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This makes it possible to nominate a JetStream metaleader transfer to servers matching specific placement tags in addition to cluster names, or optionally, to a specific named server.
preferred_serveris specified then placement will select that server only.clusterortagscan be supplied for placement. If both theclusterandtagsare supplied then the placement will select a server that matches both.tagsare specified, the placement will select servers only if they match all supplied tags.Also factors out some of the logic for making the preferred leader decision so that it could be reused for stream & consumer stepdowns.
Signed-off-by: Neil Twigg [email protected]