os/filestore: disable rocksdb compression

Experience working with customer escalations suggests that disabling
compression improves performance, and the storage overhead is generally
not a concern for the metadata and omap data we are storing.

Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit b878ead071b328e5fe7309a2368383e67679e9f7)

Conflicts:
	src/common/options.cc

Config options moved files since jewel.

diff --git a/src/common/config_opts.h b/src/common/config_opts.h
index 5499456f65d0826d00b89230f2cf698e1ef086c3..6077a8e14f44b15e61c9186fbfc52df69f576fea 100644 (file)
--- a/src/common/config_opts.h
+++ b/src/common/config_opts.h
@@ -872,7 +872,7 @@ OPTION(rocksdb_collect_extended_stats, OPT_BOOL, false) //For rocksdb, this beha
 OPTION(rocksdb_collect_memory_stats, OPT_BOOL, false) //For rocksdb, this behavior will be an overhead of 5%~10%, collected only rocksdb_perf is enabled.
 
 // rocksdb options that will be used for omap(if omap_backend is rocksdb)
-OPTION(filestore_rocksdb_options, OPT_STR, "max_background_compactions=8;compaction_readahead_size=2097152")
+OPTION(filestore_rocksdb_options, OPT_STR, "max_background_compactions=8;compaction_readahead_size=2097152;compression=kNoCompression")
 // rocksdb options that will be used in monstore
 OPTION(mon_rocksdb_options, OPT_STR, "write_buffer_size=33554432,compression=kNoCompression")