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Fix flaky ManualCompactionMax test (#8396)

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Summary:
Recalculate the total size after generate new sst files.
New generated files might have different size as the previous time which
could cause the test failed.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8396

Test Plan:
```
gtest-parallel ./db_compaction_test
--gtest_filter=DBCompactionTest.ManualCompactionMax -r 1000 -w 100
```

Reviewed By: akankshamahajan15

Differential Revision: D29083299

Pulled By: jay-zhuang

fbshipit-source-id: 49d4bd619cefc0f9a1f452f8759ff4c2ba1b6fdb
This commit is contained in:
Jay Zhuang 2021-06-14 08:10:37 -07:00 committed by Facebook GitHub Bot
parent 0d0aa578ff
commit d60ae5b1c7
1 changed files with 5 additions and 3 deletions
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8
db/db_compaction_test.cc
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@ -5208,11 +5208,12 @@ TEST_F(DBCompactionTest, ManualCompactionMax) {
ASSERT_TRUE(num_compactions.load() == 1);
// split the compaction to 5
uint64_t total = (l1_avg_size * 10) + (l2_avg_size * 100);
int num_split = 5;
opts.max_compaction_bytes = total / num_split;
DestroyAndReopen(opts);
generate_sst_func();
uint64_t total_size = (l1_avg_size * 10) + (l2_avg_size * 100);
opts.max_compaction_bytes = total_size / num_split;
Reopen(opts);
num_compactions.store(0);
ASSERT_OK(db_->CompactRange(cro, nullptr, nullptr));
ASSERT_TRUE(num_compactions.load() == num_split);
@ -5230,8 +5231,9 @@ TEST_F(DBCompactionTest, ManualCompactionMax) {
opts.max_compaction_bytes = 0;
DestroyAndReopen(opts);
generate_sst_func();
total_size = (l1_avg_size * 10) + (l2_avg_size * 100);
Status s = db_->SetOptions(
{{"max_compaction_bytes", std::to_string(total / num_split)}});
{{"max_compaction_bytes", std::to_string(total_size / num_split)}});
ASSERT_OK(s);
num_compactions.store(0);