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Analyze user_ips before running deduplication #4627
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Due to the table locks taken out by the naive upsert, the table statistics may be out of date. During deduplication it is important that the correct index is used as otherwise a full table scan may be incorrectly used, which can end up thrashing the database badly.
richvdh
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Feb 12, 2019
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lgtm otherwise
Codecov Report
@@ Coverage Diff @@
## develop #4627 +/- ##
===========================================
+ Coverage 75.25% 75.26% +0.01%
===========================================
Files 338 338
Lines 34563 34570 +7
Branches 5652 5652
===========================================
+ Hits 26009 26019 +10
+ Misses 6965 6960 -5
- Partials 1589 1591 +2 |
richvdh
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Feb 14, 2019
Synapse 0.99.1 (2019-02-14) =========================== Features -------- - Include m.room.encryption on invites by default ([\#3902](#3902)) - Federation OpenID listener resource can now be activated even if federation is disabled ([\#4420](#4420)) - Synapse's ACME support will now correctly reprovision a certificate that approaches its expiry while Synapse is running. ([\#4522](#4522)) - Add ability to update backup versions ([\#4580](#4580)) - Allow the "unavailable" presence status for /sync. This change makes Synapse compliant with r0.4.0 of the Client-Server specification. ([\#4592](#4592)) - There is no longer any need to specify `no_tls`: it is inferred from the absence of TLS listeners ([\#4613](#4613), [\#4615](#4615), [\#4617](#4617), [\#4636](#4636)) - The default configuration no longer requires TLS certificates. ([\#4614](#4614)) Bugfixes -------- - Copy over room federation ability on room upgrade. ([\#4530](#4530)) - Fix noisy "twisted.internet.task.TaskStopped" errors in logs ([\#4546](#4546)) - Synapse is now tolerant of the `tls_fingerprints` option being None or not specified. ([\#4589](#4589)) - Fix 'no unique or exclusion constraint' error ([\#4591](#4591)) - Transfer Server ACLs on room upgrade. ([\#4608](#4608)) - Fix failure to start when not TLS certificate was given even if TLS was disabled. ([\#4618](#4618)) - Fix self-signed cert notice from generate-config. ([\#4625](#4625)) - Fix performance of `user_ips` table deduplication background update ([\#4626](#4626), [\#4627](#4627)) Internal Changes ---------------- - Change the user directory state query to use a filtered call to the db instead of a generic one. ([\#4462](#4462)) - Reject federation transactions if they include more than 50 PDUs or 100 EDUs. ([\#4513](#4513)) - Reduce duplication of ``synapse.app`` code. ([\#4567](#4567)) - Fix docker upload job to push -py2 images. ([\#4576](#4576)) - Add port configuration information to ACME instructions. ([\#4578](#4578)) - Update MSC1711 FAQ to calrify .well-known usage ([\#4584](#4584)) - Clean up default listener configuration ([\#4586](#4586)) - Clarifications for reverse proxy docs ([\#4607](#4607)) - Move ClientTLSOptionsFactory init out of `refresh_certificates` ([\#4611](#4611)) - Fail cleanly if listener config lacks a 'port' ([\#4616](#4616)) - Remove redundant entries from docker config ([\#4619](#4619)) - README updates ([\#4621](#4621))
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Due to the table locks taken out by the naive upsert, the table
statistics may be out of date. During deduplication it is important that
the correct index is used as otherwise a full table scan may be
incorrectly used, which can end up thrashing the database badly.