ndimiduk commented on a change in pull request #754: HBASE-22978 : Online slow
response log
URL: https://github.com/apache/hbase/pull/754#discussion_r371448413
##########
File path:
hbase-client/src/main/java/org/apache/hadoop/hbase/client/RawAsyncHBaseAdmin.java
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@@ -3889,4 +3890,72 @@ private void getProcedureResult(long procId,
CompletableFuture<Void> future, int
.call();
}
+ @Override
+ public CompletableFuture<List<SlowLogPayload>>
getSlowLogResponses(List<ServerName> serverNames)
+ throws IOException {
+ CompletableFuture<List<SlowLogPayload>> slowLoadPayloads = null;
+ if (CollectionUtils.isNotEmpty(serverNames)) {
+ for (ServerName serverName : serverNames) {
+ CompletableFuture<List<SlowLogPayload>> slowLogPayloadFromServer =
+ getSlowLogResponseFromServer(serverName);
+ if (slowLoadPayloads == null) {
+ slowLoadPayloads = slowLogPayloadFromServer;
+ continue;
+ }
+ slowLoadPayloads =
slowLoadPayloads.thenCombine(slowLogPayloadFromServer, (l1, l2) -> {
+ List<SlowLogPayload> finalSlowLogPayloads = new ArrayList<>();
+ finalSlowLogPayloads.addAll(l1);
+ finalSlowLogPayloads.addAll(l2);
+ return finalSlowLogPayloads;
+ });
+ }
+ }
+ return slowLoadPayloads;
+ }
+
+ private CompletableFuture<List<SlowLogPayload>> getSlowLogResponseFromServer(
+ final ServerName serverName) {
+ return this.<List<SlowLogPayload>>newAdminCaller()
+ .action((controller, stub) -> this
+ .adminCall(
+ controller, stub, RequestConverter.buildSlowLogResponseRequest(),
+ AdminService.Interface::getSlowLogResponses,
+ ProtobufUtil::toSlowLogPayloads))
+ .serverName(serverName).call();
+ }
+
+ @Override
+ public CompletableFuture<List<Boolean>>
clearSlowLogResponses(List<ServerName> serverNames)
+ throws IOException {
+ List<CompletableFuture<Boolean>> clearSlowLogResponseList = new
ArrayList<>();
+ if (CollectionUtils.isNotEmpty(serverNames)) {
+ for (ServerName serverName : serverNames) {
+ CompletableFuture<Boolean> clearSlowLogResponse =
clearSlowLogsResponses(serverName);
+ clearSlowLogResponseList.add(clearSlowLogResponse);
+ }
+ }
+ return convertToFutureOfList(clearSlowLogResponseList);
+ }
+
+ private CompletableFuture<Boolean> clearSlowLogsResponses(final ServerName
serverName) {
+ return this.<Boolean>newAdminCaller()
+ .action(((controller, stub) -> this
+ .adminCall(
+ controller, stub,
RequestConverter.buildClearSlowLogResponseRequest(),
+ AdminService.Interface::clearSlowLogsResponses,
+ ProtobufUtil::toClearSlowLogPayload))
+ ).serverName(serverName).call();
+ }
+
+ private static <T> CompletableFuture<List<T>> convertToFutureOfList(
+ List<CompletableFuture<T>> futures) {
+ CompletableFuture<Void> allDoneFuture =
+ CompletableFuture.allOf(futures.toArray(new
CompletableFuture[futures.size()]));
Review comment:
`futures.toArray(new CompletableFuture[0])`
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