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From "Jianfeng Jia (Code Review)" <>
Subject Change in hyracks[master]: allow btree search to read unregistered indexes.
Date Wed, 22 Jul 2015 05:44:44 GMT
Jianfeng Jia has posted comments on this change.

Change subject: allow btree search to read unregistered indexes.

Patch Set 1:


I have only one question about the destroy API. Other than that I just take this CR as an
opportunity to understand more about the system designs, so I left some questions about the
existing code that I'm not familiar with. Thanks for answering them!
File hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/

Line 32:         this.ioDeviceId = 0;
Just curiously, does ioDeviceId = 0 mean the default location of this file is in the first
File hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/

Line 121:         synchronized (lcManager) {
Can it also destroy the index that not created by itself? Do we view the external index as
a readonly instance?
File hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/

Line 20:     public static TransientLocalResourceFactoryProvider INSTANCE = new TransientLocalResourceFactoryProvider();
Just curious to understand our system, can we have two node Hyracks node on the same machine?
I vaguely remember it can, but I'm not sure. In that case, this `TransientLocalResourceFactoryProvider`
can be shared by multiple nodes, right?

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Gerrit-MessageType: comment
Gerrit-Change-Id: I1c7cc7752dd7b6d5261ff02d591f25d76d442a1c
Gerrit-PatchSet: 1
Gerrit-Project: hyracks
Gerrit-Branch: master
Gerrit-Owner: Yingyi Bu <>
Gerrit-Reviewer: Ian Maxon <>
Gerrit-Reviewer: Jenkins <>
Gerrit-Reviewer: Jianfeng Jia <>
Gerrit-HasComments: Yes

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