rgw: raise default rgw_bucket_index_max_aio to 128

the maximum of 8 outstanding shard requests on a bucket index is an
unnecessary bottleneck, especially for CLSRGWIssueBucketList which
already has issues scaling to larger shard counts. the Objecter's
inflight ops throttle is already preventing us from flooding the osds
with requests

Signed-off-by: Casey Bodley <cbodley@redhat.com>

diff --git a/src/common/options.cc b/src/common/options.cc
index 549efbb459ec020e9d7a60d46b39b37c36e99f4e..4bf8533d8860fd031e763b0f3975d3b9d0b844ed 100644 (file)
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -5543,7 +5543,7 @@ std::vector<Option> get_rgw_options() {
     .set_description(""),
 
     Option("rgw_bucket_index_max_aio", Option::TYPE_UINT, Option::LEVEL_ADVANCED)
-    .set_default(8)
+    .set_default(128)
     .set_description("Max number of concurrent RADOS requests when handling bucket shards."),
 
     Option("rgw_enable_quota_threads", Option::TYPE_BOOL, Option::LEVEL_ADVANCED)