Luo Chen has posted comments on this change.

Change subject: [NO ISSUE] Report all BufferCache write failures.
......................................................................


Patch Set 5:

(3 comments)

A few minor comments...

https://asterix-gerrit.ics.uci.edu/#/c/2787/5/hyracks-fullstack/hyracks/hyracks-storage-am-btree/src/main/java/org/apache/hyracks/storage/am/btree/impls/BTree.java
File 
hyracks-fullstack/hyracks/hyracks-storage-am-btree/src/main/java/org/apache/hyracks/storage/am/btree/impls/BTree.java:

PS5, Line 1195: @Override
              :         public void writeFailed(ICachedPage page, Throwable 
failure) {
              :             if (this.failure == null) {
              :                 this.failure = failure;
              :             }
              :         }
              : 
              :         @Override
              :         public boolean hasFailed() {
              :             return failure != null;
              :         }
              : 
              :         @Override
              :         public Throwable getFailure() {
              :             return failure;
              :         }
Is it possible to extract a common abstract bulkloader class for this purpose, 
as we did for index cursors..


https://asterix-gerrit.ics.uci.edu/#/c/2787/5/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/IndexWithBuddyBulkLoader.java
File 
hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/IndexWithBuddyBulkLoader.java:

PS5, Line 85: getFailure
What if both bulkloaders have failed? This method should only return any 
failure, or both failures?


https://asterix-gerrit.ics.uci.edu/#/c/2787/5/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/IFIFOPageQueue.java
File 
hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/IFIFOPageQueue.java:

PS5, Line 18: // Isn't a queue FIFO by default? rename to IPageWriteQueue?
I don't think all I/O queues are FIFO by default. For example, the OS can 
reorder disk read/write requests in the queue to minimize random I/Os...
FIFO here seems to emphasize the fact that the queue is FIFO (but I fine with 
either name)


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Gerrit-MessageType: comment
Gerrit-Change-Id: I97fd3dccff85dab84d644359be6f66b15ee708ef
Gerrit-PatchSet: 5
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: abdullah alamoudi <[email protected]>
Gerrit-Reviewer: Anon. E. Moose #1000171
Gerrit-Reviewer: Ian Maxon <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Luo Chen <[email protected]>
Gerrit-Reviewer: Michael Blow <[email protected]>
Gerrit-Reviewer: Murtadha Hubail <[email protected]>
Gerrit-Reviewer: Till Westmann <[email protected]>
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