mikewalch commented on a change in pull request #740: Avoid ZK watch when
checking if property is set
URL: https://github.com/apache/accumulo/pull/740#discussion_r230190321
##########
File path:
server/base/src/main/java/org/apache/accumulo/server/conf/ZooConfiguration.java
##########
@@ -98,9 +103,26 @@ public String get(Property property) {
}
@Override
- public boolean isPropertySet(Property prop) {
- return fixedProps.containsKey(prop.getKey()) || getRaw(prop.getKey()) !=
null
- || parent.isPropertySet(prop);
+ public boolean isPropertySet(Property prop, boolean cacheAndWatch) {
+ if (fixedProps.containsKey(prop.getKey())) {
+ return true;
+ }
+ if (cacheAndWatch) {
+ if (getRaw(prop.getKey()) != null) {
+ return true;
+ }
+ } else {
+ ZooReader zr = context.getZooReaderWriter();
+ String zPath = propPathPrefix + "/" + prop.getKey();
+ try {
+ if (zr.exists(zPath) && zr.getData(zPath, null) != null) {
Review comment:
I think `exists()` will work
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