HDFS-16220.[FGL]Configurable INodeMap#NAMESPACE_KEY_DEPTH&NUM_RANGES_STATIC.#3417
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jianghuazhu wants to merge 1 commit intoapache:fglfrom
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HDFS-16220.[FGL]Configurable INodeMap#NAMESPACE_KEY_DEPTH&NUM_RANGES_STATIC.#3417jianghuazhu wants to merge 1 commit intoapache:fglfrom
jianghuazhu wants to merge 1 commit intoapache:fglfrom
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xinglin
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Looking good overall. Thanks for working on this!
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This is definitely one way to do it but is there a way we can make numSpaceKeyDepth/numRangesStatic a non-static variable?
numspaceKeyDepth -> numSpaceKeyDepth
numRangesStatic -> numRanges
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Thanks @xinglin for the comment.
I will update it later.
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Also, if we want to support namespaceKeyDepth other than 2, we probably need to modify the range Keys we insert when we create new partitions. Instead of inserting range key such as [0, 16385], [1, 16385], [2, 16385], I think we might need to insert range keys as [0,0, 16385], [1,0,16385], [2,0,16385] ... for depth of 3 and [0,0,0,16385], [1,0,0,16385], [2,0,0,16385]... for depth of 4.
for (int p = 0; p < numRangesStatic; p++) {
INodeDirectory key = new INodeDirectory(INodeId.ROOT_INODE_ID,
"range key".getBytes(StandardCharsets.UTF_8), perm, 0);
key.setParent(new INodeDirectory((long)p, null, perm, 0));
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Thanks @xinglin for the comment.
I agree with you and I will update it later.
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@xinglin, can you help review? Here are some phenomena in the debugging process. When numSpaceKeyDepth=4, numRanges=10 |
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Can we add a check here to make sure numRanges is power of 2? thanks,
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Thanks @xinglin for the comment.
I will update it later.
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@shvachko Could you please review this PR. Thanks. |
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We're closing this stale PR because it has been open for 100 days with no activity. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable. |
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Description of PR
INodeMap#NAMESPACE_KEY_DEPTH&NUM_RANGES_STATIC is configurable.
How was this patch tested?
INodeMap#NAMESPACE_KEY_DEPTH and NUM_RANGES_STATIC can be successfully obtained after changing the values of INodeMap#NAMESPACE_KEY_DEPTH and NUM_RANGES_STATIC in the Configuration.
jira:HDFS-16220