gemmellr commented on code in PR #5128:
URL: https://github.com/apache/activemq-artemis/pull/5128#discussion_r1707409571
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artemis-server/src/main/java/org/apache/activemq/artemis/core/paging/impl/PagingStoreImpl.java:
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@@ -228,11 +228,34 @@ private void configureSizeMetric() {
size.setMax(maxSize, maxSize, maxMessages, maxMessages);
}
+ private boolean validateNewSettings(final AddressSettings addressSettings) {
+
+ Long newPageLimitBytes = addressSettings.getPageLimitBytes();
+
+ if (newPageLimitBytes != null && newPageLimitBytes.longValue() < 0) {
+ newPageLimitBytes = null;
+ }
+ int newPageSize =
storageManager.getAllowedPageSize(addressSettings.getPageSizeBytes());
+ if (newPageLimitBytes != null && newPageSize > 0) {
+ long newEstimatedMaxPages = newPageLimitBytes / newPageSize;
+ if (this.numberOfPages > newEstimatedMaxPages) {
+ ActiveMQServerLogger.LOGGER.pageSettingsFailedApply(storeName,
addressSettings, "estimated max pages " + newEstimatedMaxPages + " is less than
current number of pages " + this.numberOfPages);
+ return false;
+ }
+ }
+ return true;
+ }
+
/**
* @param addressSettings
*/
@Override
public void applySetting(final AddressSettings addressSettings) {
+
+ if (!validateNewSettings(addressSettings)) {
+ return;
+ }
Review Comment:
I dont know how this interacts with the JDBC bits, I just noticed the fact
that it messes around with the effective pageSize later in this applySettings
method. However I hadnt noticed it was updating a field, and the
validateNewSettings() method doesnt use that does calculates the same value
locally..so I was probably wrong to be concerned about that bit.
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