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fix access to cache object if cache is turned off (#2782)

This commit is contained in:
Jan 2017-07-12 22:11:50 +02:00 committed by Frank Celler
parent 71434ef566
commit 722870b70c
1 changed files with 13 additions and 4 deletions
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17
arangod/RocksDBEngine/RocksDBEngine.cpp
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@ -1593,10 +1593,19 @@ void RocksDBEngine::getStatistics(VPackBuilder& builder) const {
if (_options.table_factory) { if (_options.table_factory) {
void* options = _options.table_factory->GetOptions(); void* options = _options.table_factory->GetOptions();
if (options != nullptr) { if (options != nullptr) {
builder.add( auto* bto = static_cast<rocksdb::BlockBasedTableOptions*>(options);
"rocksdb.block-cache-used",
VPackValue(static_cast<rocksdb::BlockBasedTableOptions*>(options) if (bto != nullptr && bto->block_cache != nullptr) {
->block_cache->GetUsage())); // block cache is present
builder.add(
"rocksdb.block-cache-used",
VPackValue(bto->block_cache->GetUsage()));
} else {
// no block cache present
builder.add(
"rocksdb.block-cache-used",
VPackValue(0));
}
} }
} }