junrao commented on code in PR #14603:
URL: https://github.com/apache/kafka/pull/14603#discussion_r1374791457
##########
storage/src/main/java/org/apache/kafka/storage/internals/checkpoint/CleanShutdownFileHandler.java:
##########
@@ -85,17 +86,16 @@ void write(long brokerEpoch, int version) throws Exception {
}
}
- public long read() {
- long brokerEpoch = -1L;
+ @SuppressWarnings("unchecked")
+ public OptionalLong read() {
try {
String text =
Utils.readFileAsString(cleanShutdownFile.toPath().toString());
- Map<String, String> content = new ObjectMapper().readValue(text,
HashMap.class);
-
- brokerEpoch =
Long.parseLong(content.getOrDefault(Fields.BROKER_EPOCH.toString(), "-1L"));
+ Content content = Json.parseStringAs(text, Content.class);
+ return OptionalLong.of(content.brokerEpoch);
} catch (Exception e) {
- logger.warn("Fail to read the clean shutdown file in " +
cleanShutdownFile.toPath() + ":" + e);
+ logger.trace("Fail to read the clean shutdown file in " +
cleanShutdownFile.toPath() + ":" + e);
Review Comment:
This probably should be debug?
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