* 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>
Updating a Group or a GroupMember only changed the UpdateAt or CreateAt times
respectively. And it threw an error if number of rows changed was not 1.
However, it can happen that 2 calls happen so fast that 1 milisecond does not pass,
or even 2 concurrent calls at the same time might happen so that model.GetMillis
return the same timestamp. In those cases, the number of rows updated can be 0.
The error should just check if the number is greater than 1, instead of not equal to 1.
This makes it more robust and correct.
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* MM-26574 Add role filters to user search and get
* Add ability to get filtered user stats
Add support for include bots
* Add tests for user count with filters
Add tests
* Apply changes from code review
* Fix guest filtering
* Fix up tests related to guests
* Clean role names
* Trigger CI
* Trigger CI
* Use squirrel to build query for plugin store
* Typo of PluginkeyValueStore to PluginKeyValueStore
* wrong parameter of queryBuilder in Get method
* Use casting to int for comparison on ExpireAt
* Revert query for CompareAndSet and CompareAndDelete temporarily
* Delete query of expired value
* Update query when oldValue is not nil
* Check count query when there is no row affected
* Delete query on CompareAndDelete
* Put squirrel in separate import group
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
Co-authored-by: Agniva De Sarker <agnivade@yahoo.co.in>
* Use Raw SQL query instead of GORP
As part of performance improvements we're moving the top
used queries to avoid using gorp and get rid of the overhead
caused by the reflection usage
* 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
* Remove use of Gorp in ChannelStore.GetAllChannelMembersForUser
In order to improve performance, we're removing gorp calls in the
most used queries in the platform and this is one of them
* 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
* MM-26541 parse channel member counts using like instead of using JSON as mysql versions do not support json extract
* Use a constant for default timezone
* Update wording and comments
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* 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-26514: Fix ALTER PRIMARY KEY migration for Postgres <9.3
We work around the lack of LATERAL keyword by making the query separately.
* Complete full WHERE clause just to be sure
* 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
* MM-25890: Fix deadlock on deleting emoji reactions
A deadlock happens because `UPDATE_POST_HAS_REACTIONS_ON_DELETE_QUERY` is being called from 2 separate places.
1. From `DeleteAllWithEmojiName` where it's called as an independent query.
2. From `deleteReactionAndUpdatePost` where it's called as part of a transaction along with another DELETE query.
The deadlock occurs in such a scenario:
- tx #2 acquires an X lock from the DELETE query.
- tx #1 tries to acquire a S lock with the select query, but it's waiting for the X lock to be released from tx #2
- tx #2 now tries to acquire an S lock, but it can't because it is locked on tx #1.
Deadlock.
I have tested this and it does indeed deadlock. The root of the problem is that the Primary key is a multi-column index,
which means that a next-key lock has to be acquired to get a lock on the gap before the index.
Both the queries try to delete some reactions, and then select the new number of reactions. But they select different rows
due to which this happens.
This might just be an unavoidable deadlock due to the way the indexes are setup and next-key locks.
Unless we change the primary key to be a single-column index, it will be very hard to avoid this.
Therefore we just go with a simple retry.
* fix i18n
* address review comments
* address code review
* Fix scopelint
Co-authored-by: Mattermod <mattermod@users.noreply.github.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>
* MM-24674 Update channel members by group to look at distinct autoTimezone and manualTimezone.
Instead of just doing a blanket distinct on the column since that returns more entries than expected
* Use JSON extract instead of parsing text
* Use single quotes in mysql query too
* Dont need to prepend users on unambiguous column
* Use json extract instead of shorthand
* Dont count timezone if timezone default length
* CI
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
* Implement prefix/suffix search on teams page
* Make Channel Page prefix/suffix search as well
* address PR comments
* add tests
* fix styling
* take postgres into account
* add more api tests
* update test
* add team store test
* write store test for team and channel
* fix lint
* update description
* revert go mod
Co-authored-by: mattermod <mattermod@users.noreply.github.com>
* Migrate GetDeleted method from ChannelStore to return error interface
* Moving i18n translations to the correct place
Co-authored-by: Jesús Espino <jespinog@gmail.com>
* Migrate GetAllChannels and GetAllChannelsCount from ChannelStore to return plain errors
* Moving i18n translations to the correct place
Co-authored-by: Jesús Espino <jespinog@gmail.com>
* [MM-25714] Keeps track of the import lines of the posts while importing to report the right line on error
* Adding review comments
* Reverse the order of the error and error line params
