I also found in MaintenanceScheduler.cc file which contain
MaintenanceScheduler::schedule() function.
in this function total_memory compute like this:
int64_t total_memory = block_cache_memory + block_index_memory +
bloom_filter_memory + cell_cache_memory + shadow_cache_memory +
m_query_cache_memory;
what do the x_x_memory mean? what do they be used for?
Thank you for reply. My friends.
在 2014年3月10日星期一UTC+8下午3时20分39秒，Xy Zheng写道：
>
> when i read source code of RangServer.cc, I found in Construction there
> are two cache defined.
>
> Global::block_cache = new FileBlockCache(block_cache_min, block_cache_max,
> cfg.get_bool("BlockCache.Compressed"));
>
> m_query_cache = new QueryCache(query_cache_memory);
>
> I want to know what effect do the cache mentioned above do?
>
> BTW, I also found in AccessGroup.h, the class CellStoreMaintenanceData has
> member called CellStore::IndexMemoryStats index_stats;
> when purge_cellstore_indexes, the memory used be computed as follows:
> memory_used = csmd[i]->index_stats.block_index_memory +
> csmd[i]->index_stats.bloom_filter_memory;
>
> I want to know the two x_x_memory at this place be used as what?
> Do the x_x_memory and the x_cache have relationship? and what
> relationship between them?
>
> Any advice be appreciated.
>
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