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Add note about checking data schema before rebalancing #5592

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3 changes: 3 additions & 0 deletions doc/book/admin/vshard_admin.rst
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Expand Up @@ -186,6 +186,9 @@ loaded replica sets to the zero-load replica set.
.. note::

A new zero-load replica set should be assigned a weight for rebalancing to start.
Before migrating buckets to a new replica set, it's important to check the data schema on the added storage.
The data schema on the new storage must match the schema of the other storages in the cluster.
Mismatches in data schemas may lead to rebalancing errors, including the halt of the migration process.

When a new shard is added, the configuration can be updated dynamically:

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9 changes: 9 additions & 0 deletions locale/ru/LC_MESSAGES/book/admin/vshard_admin.po
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Expand Up @@ -358,9 +358,18 @@ msgstr ""
msgid ""
"A new zero-load replica set should be assigned a weight for rebalancing to "
"start."
" Before migrating buckets to a new replica set, it's important to check the "
"data schema on the added storage. The data schema on the new storage must "
"match the schema of the other storages in the cluster. Mismatches "
"in data schemas may lead to rebalancing errors, including the halt of the migration process."

msgstr ""
"Новому набору реплик с нулевой нагрузкой следует присвоить вес, чтобы начать"
" процесс балансировки."
" Перед началом миграции сегментов на новый набор реплик важно проверить "
"схему данных на добавленном хранилище. Схема данных на новом хранилище должна "
"совпадать со схемой на других хранилищах в кластере. Несовпадения "
"схемы данных может привести к ошибкам при ребалансировке, вплоть до остановки процесса миграции сегментов."

msgid ""
"When a new shard is added, the configuration can be updated dynamically:"
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