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Subject: [OASIS Issue Tracker] (OSLCCORE-93) Enforce consecutive order of the trs:order numbers
[ https://issues.oasis-open.org/browse/OSLCCORE-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=67482#comment-67482 ] Nick Crossley commented on OSLCCORE-93: --------------------------------------- Wouldn't adding such a requirement impose a significant compatibility issue for current implementations? I think the only way to do this would be to recommend a different predicate - trs:sequence or something. The spec would require that a TRS provider MUST provide the trs:order with its current properties, and MAY or SHOULD provide a consecutive monotonically increasing trs:seqence. If a TRS client (or filter) found a change log with trs:sequence properties, it could rely on these to be consecutive; if it found only trs:order, it would have to provide a sorting filter with a 'big enough' buffer to make the probability of a missing change event message unlikely. > Enforce consecutive order of the trs:order numbers > -------------------------------------------------- > > Key: OSLCCORE-93 > URL: https://issues.oasis-open.org/browse/OSLCCORE-93 > Project: OASIS OSLC Lifecycle Integration Core (OSLC Core) TC > Issue Type: Bug > Reporter: Andrii Berezovskyi > Labels: TRS > > If TRS events are to be distributed via messaging systems without strict ordering guarantees (eg partitioned Kafka topics), a Resequencer EIP pattern might need to be applied. The pattern requires the message order ids to be sequential in order to unambiguously define whether there are any out-of-order messages still missing from the internal resequencing buffer. > I think a single atomic counter is not too much to ask from the TRS server implementers. > http://www.enterpriseintegrationpatterns.com/patterns/messaging/Resequencer.html -- This message was sent by Atlassian JIRA (v6.2.2#6258)
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