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Provide mechanism to configure when to flush the block

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Summary: Allow block based table to configure the way flushing the blocks. This feature will allow us to add support for prefix-aligned block.

Test Plan: make check

Reviewers: dhruba, haobo, sdong, igor

Reviewed By: sdong

CC: leveldb

Differential Revision: https://reviews.facebook.net/D13875
This commit is contained in:
Kai Liu
2013-11-07 21:27:21 -08:00
parent bba6595b1f
commit fd075d6edd
8 changed files with 230 additions and 64 deletions
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17
util/options.cc
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@@ -16,6 +16,7 @@
#include "rocksdb/comparator.h"
#include "rocksdb/env.h"
#include "rocksdb/filter_policy.h"
#include "rocksdb/flush_block_policy.h"
#include "rocksdb/merge_operator.h"
#include "table/block_based_table_factory.h"
@@ -286,12 +287,14 @@ Options::Dump(Logger* log) const
collector_names.append(collector->Name());
collector_names.append("; ");
}
Log(log," Options.table_stats_collectors: %s",
Log(log, " Options.table_stats_collectors: %s",
collector_names.c_str());
Log(log," Options.inplace_update_support: %d",
Log(log, " Options.inplace_update_support: %d",
inplace_update_support);
Log(log," Options.inplace_update_num_locks: %zd",
Log(log, " Options.inplace_update_num_locks: %zd",
inplace_update_num_locks);
Log(log, " Options.flush_block_policy_factory: %s",
flush_block_policy_factory ? flush_block_policy_factory->Name() : "");
} // Options::Dump
//
@@ -331,4 +334,12 @@ Options::PrepareForBulkLoad()
return this;
}
Options* Options::SetUpDefaultFlushBlockPolicyFactory() {
assert(!flush_block_policy_factory);
flush_block_policy_factory =
std::make_shared<FlushBlockBySizePolicyFactory>(
block_size, block_size_deviation);
return this;
}
} // namespace rocksdb