Limit the disk usage to avoid running out of disk capacity #1702
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Set high watermark and flood stage of disk used capacity. And forbid some operation is disk usage is too high.
chaoyli
requested changes
Aug 26, 2019
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| Status DataDir::update_capacity() { | ||
| try { | ||
| boost::filesystem::path path_name(_path); |
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C++14 not support std::filesystem
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C++14 not support std::filesystem
be/src/olap/compaction.cpp
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| } | ||
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| OLAPStatus Compaction::check_disk_capacity() { | ||
| int64_t incoming_data_size = 0; |
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only in SegmentWriter will be ok. All writers only go through the SegmentWriter.
| : _path(path), | ||
| _capacity_bytes(capacity_bytes), | ||
| _available_bytes(0), | ||
| _disk_capacity_bytes(0), |
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_capacity_bytes and _disk_capacity_bytes are redundant ?
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No, _capacity_bytes is user specified disk capacity, but it currently not used.
_disk_capacity_bytes is the capacity of the disk
be/src/olap/schema_change.cpp
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| // check disk capacity | ||
| int64_t tablet_size = rs_reader->rowset()->index_disk_size() + rs_reader->rowset()->data_disk_size(); | ||
| if (sc_params.new_tablet->data_dir()->reach_capacity_limit(tablet_size)) { |
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chaoyli
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Aug 27, 2019
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Set high watermark and flood stage of disk used capacity.
And forbid some operations if disk usage is too high.
ISSUE: #1701