ankitsinghal commented on a change in pull request #19:
RATIS-549,RATIS-550,RATIS-552,RATIS-553 Metric Framework for Ratis
URL: https://github.com/apache/incubator-ratis/pull/19#discussion_r284036614
##########
File path:
ratis-logservice/src/main/java/org/apache/ratis/logservice/server/MetaStateMachine.java
##########
@@ -172,27 +176,30 @@ public TransactionContext
preAppendTransaction(TransactionContext trx) throws IO
@Override
public CompletableFuture<Message> query(Message request) {
- if (currentGroup == null) {
- try {
- List<RaftGroup> x =
StreamSupport.stream(raftServer.getGroups().spliterator(), false)
- .filter(group ->
group.getGroupId().equals(metadataGroupId))
- .collect(Collectors.toList());
- if (x.size() == 1) {
- currentGroup = x.get(0);
+ long start = System.currentTimeMillis();
Review comment:
Yeah , Looks like someone did some benchmarking and found system.nanoTime()
is slower
https://stackoverflow.com/questions/19052316/why-is-system-nanotime-way-slower-in-performance-than-system-currenttimemill/19052440
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