[fix] [broker] PulsarRegistrationClient writableBookieInfo cache and readOnlyBookieInfo cache update fail causing broker to misjudge that the bookie is unavailable#23021
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…readOnlyBookieInfo cache update fail causing broker to misjudge that the bookie is unavailable.
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| if ((info = writableBookieInfo.get(bookieId)) == null) { | ||
| log.warn("Bookie {} not found from all cache, now update writableBookieInfo cache " | ||
| + "and then try to get from writableBookieInfo cache.", bookieId); | ||
| readBookieInfoAsWritableBookie(bookieId); |
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readBookieInfoAsWritableBookie returns a future so this doesn't seem to be the correct approach here. It would be necessary to use asynchronous callback chaining using CompletableFuture's .then* methods.
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It seems that #20642 attempted to fix some issues in this area. Useful for more context. |
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Fixes #23020
Main Issue: #xyz
PIP: #xyz
Motivation
The bookie process is running normally and there is corresponding bookie information in the metadata. Therefore, the broker's cache should also have corresponding bookie information. But the broker's cache does not have corresponding bookie information and causing broker to misjudge that the bookie is unavailable.
The broker prints the following exception information:
Modifications
pulsar-metadata/src/main/java/org/apache/pulsar/metadata/bookkeeper/PulsarRegistrationClient.java#getBookieServiceInfo
yyj8@c52069f#diff-7a5305b98183695c3d8246b9e9ccafa68180d7f9e8df5534019d6bbcc59a90f6
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