ivakegg commented on a change in pull request #1487:
URL: https://github.com/apache/accumulo/pull/1487#discussion_r437644023
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File path:
server/tserver/src/main/java/org/apache/accumulo/tserver/ThriftClientHandler.java
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@@ -668,15 +669,27 @@ private void setUpdateTablet(UpdateSession us, KeyExtent
keyExtent) {
@Override
public void applyUpdates(TInfo tinfo, long updateID, TKeyExtent tkeyExtent,
- List<TMutation> tmutations) {
+ List<TMutation> tmutations) throws TException {
UpdateSession us = (UpdateSession)
server.sessionManager.reserveSession(updateID);
if (us == null) {
return;
}
+ Semaphore semaphoreCopy = null;
boolean reserved = true;
+
try {
KeyExtent keyExtent = new KeyExtent(tkeyExtent);
+
+ if (TabletType.type(keyExtent) == TabletType.USER) {
+ semaphoreCopy = server.getSemaphore();
+ if (!semaphoreCopy.tryAcquire()) {
+ throw new TException("Mutation failed. No threads available.");
+ } else {
+ log.info("Available permits: {}", semaphoreCopy.availablePermits());
Review comment:
This will get logged at ever mutation. Perhaps this should be a
log.trace instead.
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