ARROW-4296: [C++] [Plasma] Update dlmemalign call to prevent plasma store crash with -f flag#3434
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anuragkh wants to merge 1 commit intoapache:masterfrom
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ARROW-4296: [C++] [Plasma] Update dlmemalign call to prevent plasma store crash with -f flag#3434anuragkh wants to merge 1 commit intoapache:masterfrom
anuragkh wants to merge 1 commit intoapache:masterfrom
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rebased |
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Thanks for the patch! Let me have a closer look if I can figure out what is going (maybe we can replace the dlmemalig with a dlmalloc and use the full space and avoid magic constants). |
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replaced by #3490 |
robertnishihara
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Jan 29, 2019
This PR is similar to #3434 but also makes sure we only have one well-tested code path to go through. Author: Philipp Moritz <pcmoritz@gmail.com> Closes #3490 from pcmoritz/one-mmap-file and squashes the following commits: c447af5 <Philipp Moritz> remove --verbose f885f49 <Philipp Moritz> reduce plasma store size for test 6072e8f <Philipp Moritz> add verbose flag 990700f <Philipp Moritz> use only one mmapped file
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https://issues.apache.org/jira/browse/ARROW-4296
Starting Plasma with use_one_memory_mapped_file (-f flag) causes a crash, most likely due to improper memory alignment. Changing the dlmemalign call during initialization to use slightly smaller memory (by ~8KB) resolves this.