dsmiley commented on code in PR #2021:
URL: https://github.com/apache/solr/pull/2021#discussion_r1366914071
##########
solr/core/src/java/org/apache/solr/update/VersionBucket.java:
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@@ -31,14 +31,41 @@
* ignores the <code>lockTimeoutMs</code>.
*/
public class VersionBucket {
- public long highest;
+ private long highest;
+
+ /**
+ * @param highest the initial value of this bucket highest version.
+ */
+ public VersionBucket(long highest) {
+ setHighestIfGreater(highest);
+ }
+
+ /**
+ * Updates the highest version if the current bucket value is not zero and
if the provided value
+ * is greater than the current bucket value. The caller must synchronize on
this bucket when
+ * calling this method.
+ */
public void updateHighest(long val) {
if (highest != 0) {
- highest = Math.max(highest, Math.abs(val));
+ setHighestIfGreater(Math.abs(val));
+ }
+ }
+
+ /**
+ * Sets the highest version if the provided value is greater than the
current bucket value. The
+ * caller must synchronize on this bucket when calling this method.
+ */
+ public void setHighestIfGreater(long val) {
+ if (val > highest) {
+ this.highest = val;
}
}
+ public long getHighest() {
Review Comment:
The methods we're talking about are really trivial. And the concurrency
concern is low probability. I wouldn't worry about a negative perf impact that
you hurt anything here.
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