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Create Missing Column Families

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Summary: Provide an convenience option to create column families if they are missing from the DB. Task #4460490

Test Plan: added unit test. also, stress test for some time

Reviewers: sdong, haobo, dhruba, ljin, yhchiang

Reviewed By: yhchiang

Subscribers: yhchiang, leveldb

Differential Revision: https://reviews.facebook.net/D18951
This commit is contained in:
Igor Canadi
2014-06-06 18:04:56 -07:00
parent 99d3eed2fd
commit a0191c9dfe
5 changed files with 45 additions and 17 deletions
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18
tools/db_stress.cc
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@@ -1677,19 +1677,15 @@ class StressTest {
}
cf_descriptors.emplace_back(name, ColumnFamilyOptions(options_));
}
while (cf_descriptors.size() < (size_t)FLAGS_column_families) {
std::string name = std::to_string(new_column_family_name_.load());
new_column_family_name_++;
cf_descriptors.emplace_back(name, ColumnFamilyOptions(options_));
column_family_names_.push_back(name);
}
options_.create_missing_column_families = true;
s = DB::Open(DBOptions(options_), FLAGS_db, cf_descriptors,
&column_families_, &db_);
if (s.ok()) {
while (s.ok() &&
column_families_.size() < (size_t)FLAGS_column_families) {
ColumnFamilyHandle* cf = nullptr;
std::string name = std::to_string(new_column_family_name_.load());
new_column_family_name_++;
s = db_->CreateColumnFamily(ColumnFamilyOptions(options_), name, &cf);
column_families_.push_back(cf);
column_family_names_.push_back(name);
}
}
assert(!s.ok() || column_families_.size() ==
static_cast<size_t>(FLAGS_column_families));
} else {