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/sync gives bad prev_batch token for unlimited timelines (SYN-645) #1509

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matrixbot opened this issue Mar 8, 2016 · 4 comments
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/sync gives bad prev_batch token for unlimited timelines (SYN-645) #1509

matrixbot opened this issue Mar 8, 2016 · 4 comments
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A-Sync defects related to /sync S-Minor Blocks non-critical functionality, workarounds exist. T-Defect Bugs, crashes, hangs, security vulnerabilities, or other reported issues.

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Submitted by @​richvdh:matrix.org
For an initial /sync, if a room's timeline is small enough to fit into the limit, we get a prev_batch which corresponds to the end of the timeline rather than the start. This is exacerbating element-hq/element-web#1089.

(Imported from https://matrix.org/jira/browse/SYN-645)
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Jira watchers: @richvdh

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Fancy taking a look, [~markjh]?

-- @richvdh

@matrixbot matrixbot changed the title /sync gives bad prev_batch token for unlimited timelines (SYN-645) /sync gives bad prev_batch token for unlimited timelines (https://github.com/matrix-org/synapse/issues/1509) Nov 7, 2016
@matrixbot matrixbot changed the title /sync gives bad prev_batch token for unlimited timelines (https://github.com/matrix-org/synapse/issues/1509) /sync gives bad prev_batch token for unlimited timelines (SYN-645) Nov 7, 2016
This was referenced Aug 5, 2021
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@richvdh richvdh added S-Minor Blocks non-critical functionality, workarounds exist. T-Defect Bugs, crashes, hangs, security vulnerabilities, or other reported issues. labels Aug 5, 2021
@erikjohnston
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This is biting various clients.

@callahad
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This is biting various clients.

Which ones? Are there public bug reports?

@MadLittleMods MadLittleMods added the A-Sync defects related to /sync label Jul 19, 2022
@matrixbot matrixbot mentioned this issue Dec 21, 2023
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