szlta commented on a change in pull request #909: HIVE-22821
URL: https://github.com/apache/hive/pull/909#discussion_r388197920
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File path:
llap-server/src/java/org/apache/hadoop/hive/llap/io/api/impl/LlapIoImpl.java
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@@ -221,6 +227,9 @@ public void debugDumpShort(StringBuilder sb) {
metadataCache, dataCache, bufferManagerOrc, conf, cacheMetrics,
ioMetrics, tracePool);
this.genericCvp = isEncodeEnabled ? new GenericColumnVectorProducer(
serdeCache, bufferManagerGeneric, conf, cacheMetrics, ioMetrics,
tracePool) : null;
+ proactiveEvictionExecutor = Executors.newSingleThreadExecutor(
Review comment:
I guess I just wanted to make sure that this operation is completely
decoupled from the rest of threads.
On daemon side you're right we'd be in an RPC handler thread while doing
this eviction. My idea was that this request should return as fast as possible
and don't even interfere with the RPC threads. Hence the void return value btw.
On HS2 side in ProactiveEviction we already use an executor service to send
the eviction request.
So it's decoupled on HS2 too. If you feel that's enough I'll remove the
additional async part on the daemon side.
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