bshashikant commented on a change in pull request #734: HDDS-3240. Improve
write efficiency by creating container in parallel
URL: https://github.com/apache/hadoop-ozone/pull/734#discussion_r400661933
##########
File path:
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/ContainerStateMachine.java
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@@ -664,12 +689,12 @@ private ByteString getCachedStateMachineData(Long
logIndex, long term,
future.complete(
getCachedStateMachineData(entry.getIndex(), entry.getTerm(),
requestProto));
- } catch (IOException e) {
+ } catch (Exception e) {
metrics.incNumReadStateMachineFails();
future.completeExceptionally(e);
}
return future;
- }, getChunkExecutor(requestProto.getWriteChunk()));
+ }, getReadChunkExecutor(requestProto.getWriteChunk()));
Review comment:
I think, lookUp from the cache can be done in the same thread where
readStateMachineData is called. I don't think there is a need here to delegate
the cache lookup to a different thread. Reading and writing from the disk can
be done using the same set of chunk executor threads.
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