On Tue, 3 Mar 2015, Sage Weil wrote:
> I think we should try to avoid the dups in the first place in the upper
> layers before resorting to deduping in the FileStore.
I took a stab at this:
https://github.com/ceph/ceph/pull/3878
Here's what the txns look like now:
{
"ops": [
{
"op_num": 0,
"op_name": "omap_setkeys",
"collection": "0.2_head",
"oid": "2\/\/head\/\/0",
"attr_lens": {
"0000000005.00000000000000000002": 178,
"_epoch": 4,
"_info": 729,
"can_rollback_to": 12,
"rollback_info_trimmed_to": 12
}
},
{
"op_num": 1,
"op_name": "write",
"collection": "0.2_head",
"oid": "8b08fa52\/benchmark_data_maetl_15609_object5\/head\/\/0",
"length": 123,
"offset": 0,
"bufferlist length": 123
},
{
"op_num": 2,
"op_name": "setattr",
"collection": "0.2_head",
"oid": "8b08fa52\/benchmark_data_maetl_15609_object5\/head\/\/0",
"name": "_",
"length": 269
},
{
"op_num": 3,
"op_name": "setattr",
"collection": "0.2_head",
"oid": "8b08fa52\/benchmark_data_maetl_15609_object5\/head\/\/0",
"name": "snapset",
"length": 31
}
]
}
Care to give that a spin and see if it give syou a similar (or better)
improvement?
sage
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