* Migration completed
* Fix tests
* Reduce to one line
* Fix: change to plain error
* Fix imports
* Trigger CI
* Fix i18
* Fix merge with master
* Trigger CI
* add warning as success result
* revert config changes
* add unit test, update unit test
* add a couple more tests
* update store layers
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* Add team filters to search teams
Remove unneeded logs
Add team filters to search teams
* Use bool pointers for filters
Re-add include group constrained
Fix lint
Return the union of filters
* Fix direct/group channel false positives
* Move public structures to model package
* Expose CheckIntegrity as a local API method
* Remove extra file
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* MM-26410 Allow moving channels into Favorites when they're favorited in prefs
* MM-26410 Fix management of Favorites category when updating preferences
* MM-26410 Add management of Favorites category when deleting preferences
* Address feedback 1
* Remove WHERE (1=1) from query
* Remove unnecessary sq.Expr
* Rewrite query to use left join
* Remove redundant where statement and add some more tests
* Fix linting issues
* Rename addChannelToFavoritesCategory to addChannelToFavoritesCategory
* Migrate command webhook store AppError to error
* Migrate command webhook store AppError to error
* Migrate command webhook store AppError to error
* Migrate command webhook store AppError to error
* Migrate command webhook store AppError to error
* Migrate command webhook store AppError to error
* Migrate command webhook store AppError to error
* Changes requested in the review.
* Changing http status
* fix i18n
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
Co-authored-by: Agniva De Sarker <agnivade@yahoo.co.in>
* TokenStore migration to return plain errors
* Fix translations
* Fix: returned error is ignored and http.StatusBadRequest is always returned
* Fix
* Fix translations
* Suggestions
* Changed from BadRequest to NotFound
* Setting the correct http status
* Changed test to expect 404 status
* Fix error
* MM-26753 Change CreateInitialSidebarCategories to only take a user ID
* MM-26753 Create initial sidebar categories on demand if migration hasn't ran
* Wait for sidebar categories to be loaded in case of replication lag
* parent 48256721c4 (#14358)
author Eli Yukelzon <reflog@gmail.com> 1585814774 +0300
committer Eli Yukelzon <reflog@gmail.com> 1589111022 +0300
Sidebar caregories implemented
Apply suggestions from code review
Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>
Update store/sqlstore/channel_store.go
Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>
Update store/sqlstore/channel_store.go
Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>
code review suggestions
status messages
edge case
bugs...
timeout reverse
* MM-25126 Add a separate default sorting method for categories (#14575)
* MM-25158 Add user to initial sidebar categories when joining team (#14570)
* MM-25281 Place new categories in the correct position (#14609)
* MM-25277 Return channels that aren't in a category as part of the Channels/Direct Messages categories (#14601)
* MM-25276 Remove categories when leaving a team (#14600)
* Remove categories when leaving a team
* layers
* corrected cleanup function
* lint
* .
* corrected errors in postgres
* .
* MM-25280 Ensure that the "update category order" API call only contains real category IDs and isn't missing any IDs (#14626)
* Ensure that the "update category order" API call only contains real category IDs and isn't missing any IDs
* tests
* correct status code
* MM-25278 Change "update category" API to return 400 when changing unsupported fields (#14599)
* MM-25279 Change category migration to only populate channels in Favorites (#14627)
* MM-25157 Add API to delete custom categories (#14574)
* MM-25157 Add API to delete custom categories
* get categories fix
* maxorder fix
* Use correct websocket event when deleting category
* Fix tests and remove debug code
* Actually use the right websocket event this time
* test cleanup
* Update test for new category order
Co-authored-by: Eli Yukelzon <reflog@gmail.com>
* MM-24914 Various fixes for sidebar channel handling (#14756)
* Fix checking for channel membership when reordering channels
* Remove unique constraint on SidebarCategories
* Set column sizes for SidebarCategories and SidebarChannels tables
* Allow changing the sorting method for non-DM categories
* Fix nil pointers in error handling
* Fix orphaned channels from other team being returned in Channels category
* Fix non-orphaned channels being duplicated in the Channels category
* Remove unique constraint on SidebarChannels
* Fix category/name of favorites preferences
* Fix testSidebarChannelsMigration
* Rename err to nErr and appErr to err
* Fix channel order returned by GetSidebarCategories on MySQL
* Fix adding/removing favorites preferences
* Remove leftover TODO
* Change SidebarCategoryType enums to use full names (#14786)
* Change SidebarCategoryType enums to use full names
* Fix Channels constant
* Remove leftover debug code
* MM-24914 Fix updateCategory endpoint returning the wrong type (#14795)
* MM-24914 Make some changes to UpdateSidebarCategories (#14806)
* Fix orphaned DMs not always being returned
* MM-24914 Make some changes to UpdateSidebarCategories
* Run updateSidebarCategoryOrderT in a transaction
* Fix deleting SidebarChannels based on order of arguments to UpdateSidebarCategories
* bump for api testing
* bump for api testing
* Change CreateInitialSidebarCategories to return a plain error
* Change MigrateSidebarCategories to return a plain error
* Remove usage of UpdateColumns when updating sidebar categories (#14843)
* Remove usage of UpdateColumns when changing category order
* Add a random test case
* Remove usage of UpdateColumns when updating sidebar categories (#14843)
* Remove usage of UpdateColumns when changing category order
* Add a random test case
* Remove usage of UpdateColumns when updating sidebar categories (#14843)
* Remove usage of UpdateColumns when changing category order
* Add a random test case
* MM-26343 Make CreateInitialSidebarCategories idempotent (#14870)
* Fix bad merge
* Fix another bad merge
* Fix unintentionally removed i18n string
Co-authored-by: Eli Yukelzon <reflog@gmail.com>
* MM-19548: Add a deadlock retry function for SaveChannel
A deadlock has been seen to occur in the upsertPublicChannelT method
during bulk import.
Here is a brief excerpt:
*** (1) TRANSACTION:
TRANSACTION 3141, ACTIVE 1 sec inserting
INSERT INTO
PublicChannels(Id, DeleteAt, TeamId, DisplayName, Name, Header, Purpose)
VALUES
(?, ?, ?, ?, ?, ?, ?)
ON DUPLICATE KEY UPDATE
DeleteAt = ?,
TeamId = ?,
DisplayName = ?,
Name = ?,
Header = ?,
Purpose = ?
*** (1) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 76 page no 4 n bits 104 index Name of table `mydb`.`PublicChannels` trx id 3141 lock_mode X locks gap before rec insert intention waiting
** (2) TRANSACTION:
TRANSACTION 3140, ACTIVE 1 sec inserting
mysql tables in use 1, locked 1
5 lock struct(s), heap size 1136, 3 row lock(s), undo log entries 2
MySQL thread id 50, OS thread handle 140641523848960, query id 3226 172.17.0.1 mmuser update
INSERT INTO
PublicChannels(Id, DeleteAt, TeamId, DisplayName, Name, Header, Purpose)
VALUES
(?, ?, ?, ?, ?, ?, ?)
ON DUPLICATE KEY UPDATE
DeleteAt = ?,
TeamId = ?,
DisplayName = ?,
Name = ?,
Header = ?,
Purpose = ?
*** (2) HOLDS THE LOCK(S):
RECORD LOCKS space id 76 page no 4 n bits 104 index Name of table `mydb`.`PublicChannels` trx id 3140 lock_mode X locks gap before rec
*** (2) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 76 page no 4 n bits 104 index Name of table `mydb`.`PublicChannels` trx id 3140 lock_mode X locks gap before rec insert intention waiting
*** WE ROLL BACK TRANSACTION (1)
Following is my analysis:
From the deadlock output, it can be seen that it's due to a gap lock.
And that's clear because the index is Name which is a multi-column index using Name and TeamId.
But interestingly, both transactions seem to be inserting the same data, which is what is puzzling me.
The multi-column index on Name and TeamId will guarantee that they are always unique. And from looking at the code,
it does not seem possible to me that it will try to insert the same data from 2 different transactions.
But even if they do, why does tx 2 try to acquire the same lock again when it already has that ?
Here is what I think the order of events happening
Tx 2 gets a gap lock.
Tx 1 tries to get the same gap lock.
Tx 2 tries to again get the same gap lock ?
The last step is what is puzzling me. Why does an UPSERT statement acquire 2 gap locks ? From my reading of https://dev.mysql.com/doc/refman/8.0/en/innodb-locks-set.html:
> INSERT ... ON DUPLICATE KEY UPDATE differs from a simple INSERT in that an exclusive lock rather than a shared lock is placed on the row to be updated when a duplicate-key error occurs. An exclusive index-record lock is taken for a duplicate primary key value. An exclusive next-key lock is taken for a duplicate unique key value.
From what I understand, the expectation is that there will be one X lock and one gap lock is taken.
But that's not what the deadlock output seems to say.
The general advice on the internet seems to be that deadlocks will happen and not all of them can be understood.
For now, we add a generic deadlock retry function at the store package which can be reused by other queries too.
P.S.: This is a verbatim copy of my investigation posted at https://dba.stackexchange.com/questions/268652/mysql-deadlock-upsert-query-acquiring-gap-lock-twice
Testing:
This is ofcourse hard to test because it is impossible to reproduce this. I have tested this by manually returning an error
and confirming that it indeed retries.
WARN[2020-06-19T11:18:24.9585676+05:30] A deadlock happened. Retrying. caller="sqlstore/channel_store.go:568" error="Error 1213: mydeadlock"
WARN[2020-06-19T11:18:24.959158+05:30] A deadlock happened. Retrying. caller="sqlstore/channel_store.go:568" error="Error 1213: mydeadlock"
WARN[2020-06-19T11:18:24.9595072+05:30] A deadlock happened. Retrying. caller="sqlstore/channel_store.go:568" error="Error 1213: mydeadlock"
WARN[2020-06-19T11:18:24.9595451+05:30] Deadlock happened 3 times. Giving up caller="sqlstore/channel_store.go:579"
ERRO[2020-06-19T11:18:24.9596426+05:30] Unable to save channel. caller="mlog/log.go:175" err_details="Error 1213: mydeadlock" err_where=CreateChannel http_code=500 ip_addr="::1" method=POST path=/api/v4/channels request_id=745bsj13b7f6mnmsbn3t97grbw user_id=xcof1ipipbrfxpfjf6x4p6kx9e
* Fix tests
* Address review comments
* Address review comments
* Add forgotten test
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* new job type created that checks for expired mobile sessions and pushes notifications.
* only send session expired notifications if ExtendSessionLengthWithActivity is enabled.
* includes schema change: field added to Sessions table
