jacek-lewandowski commented on code in PR #1804:
URL: https://github.com/apache/cassandra/pull/1804#discussion_r960521100
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src/java/org/apache/cassandra/schema/Schema.java:
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@@ -611,18 +613,42 @@ public SchemaTransformationResult
transform(SchemaTransformation transformation,
* Clear all locally stored schema information and fetch schema from
another node.
* Called by user (via JMX) who wants to get rid of schema disagreement.
*/
- public synchronized void resetLocalSchema()
Review Comment:
Most general answer to that question is - because we are waiting in this
method. The method simply mark a schema that is should be refreshed and wait
until it happens. However, the schema would be unable to refresh if we hold a
lock because we no changes could be applied then. Note that, the changes are
applied from the MigrationCoordinator thread, usually a different to the called
thread.
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