When CHANGE MASTER sets master_heartbeat_period to a value greater than @@GLOBAL.slave_net_timeout, a ER_SLAVE_HEARTBEAT_VALUE_OUT_OF_RANGE_MAX warning is emitted. However, the reverse scenario, lowering slave_net_timeout below an existing master_heartbeat_period, produced no warning. Add an on_check callback for slave_net_timeout that iterates all Master_info entries and warns if any heartbeat period exceeds the requested timeout. Connections that are not configured are skipped. A DEFAULT heartbeat period is skipped unless --master-heartbeat-period was given at startup: without it the period follows slave_net_timeout/2 and can never exceed the timeout, but with it the period is a fixed value and is checked like an explicit one. The warning is reported with a new, generalized error ER_OPERATION_INVALIDATES_CONFIGURED_SLAVE, which names the affected replication connection and carries a parameterized description of the misconfiguration. Naming the connection matters for multi-source: when several connections exceed the new timeout, the user can see exactly which ones are problematic. One warning is emitted per affected connection. Add a multi_source test, run with --master-heartbeat-period=30, that configures two named connections with explicit heartbeat periods above the timeout and a third left at DEFAULT, and verifies a distinct warning is emitted for each. All new code of the whole pull request, including one or several files that are either new files or modified ones, are contributed under the BSD-new license. I am contributing on behalf of my employer Amazon Web Services, Inc.
A quicker way for adding new language translations to the errmsg-utf8.txt file
Summary
To generate a new language translation of MariaDB use the following pull request (PR) as a template for your work:
You will notice as part of your translation work, you will have to add your language translations to the file sql/share/errmsg-utf8.txt which is found in the current directory. This file is long with many sections which can make the translation work tedious. In this README, we explain a procedure and provide a script insert_translations_into_errmsg.py that cuts down the amount of tedium in accomplishing the task.
Procedure
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Start by grepping out all the english translations from errmsg-utf8.txt using the following grep command, and redirecting the output to a file:
grep -P "^\s*eng\s" errmsg-utf8.txt > all_english_text_in_errmsg-utf8.txt
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Next use Google translate to obtain a translation of this file. Google translate provides the ability to upload whole files for translation. For example, this technique was used to obtain Swahili translations which yielded a file with output similar to the below (output is truncated for clarity):
sw "hashchk" sw "isamchk" sw "LA" sw "NDIYO" sw "Haiwezi kuunda faili '% -.200s' (kosa: %iE)" sw "Haiwezi kuunda jedwali %
s.%s (kosa: %iE)" sw "Haiwezi kuunda hifadhidata '% -.192s' (kosa: %iE)" sw "Haiwezi kuunda hifadhidata '% -.192s'; hifadhidata ipo"
Note that Google translate removes the leading whitespace in the translation file it generates. DO NOT add that leading whitespace back!
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Give the translated file an appropriate name (e.g.
all_swahili_text_in_errmsg-utf8.txt) and store it in the same directory witherrmsg-utf8.txtandall_english_text_in_errmsg-utf8.txt. These 3 files will be used by the script insert_translations_into_errmsg.py. -
Proof check the auto-translations in the file you downloaded from Google translate. Note that Google might omit formatting information that will cause the compilation of MariaDB to fail, so pay attention to these.
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Reintegrate these translations into the errmsg-utf8.txt by running the insert_translations_into_errmsg.py script as follows:
chmod ugo+x insert_translations_into_errmsg.py # Make the script executable if it is not.
./insert_translations_into_errmsg.py <errmsg-utf8.txt file>
For example, for the swahili translation, we ran the following:
./insert_translations_into_errmsg.py errmsg-utf8.txt all_english_text_in_errmsg-utf8.txt all_swahili_text_in_errmsg-utf8.txt
The script uses the
errmsg-utf8.txtfile and the grepped english file to keep track of each new translation. It then creates a file in the same directory aserrmsg-utf8.txtwith the nameerrmsg-utf8-with-new-language.txt. -
Check that the reintegration of the new translations into
errmsg-utf8-with-new-language.txtwent OK, and if it did, renameerrmsg-utf8-with-new-language.txttoerrmsg-utf8.txt:mv errmsg-utf8-with-new-language.txt errmsg-utf8.txt
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In the header of errmsg-utf8.txt make sure to add your language long form to short form mapping. E.g. for Swahili, add:
swahili=sw