gluster fuse comsumes huge memory

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Hi expert:

I meet a problem when I use glusterfs. The problem is that the fuse client consumes huge memory when write a   lot of files(>million) to the gluster, at last leading to killed by OS oom. The memory the fuse process consumes can up to 100G! I wonder if there are memory leaks in the gluster fuse process, or some other causes. Thanks!

This is the statedump file`s link:

https://drive.google.com/file/d/1ZlttTzt4E56Qtk9j7b4I9GkZC2W3mJgp/view?usp=sharing

My gluster version is 3.13.2, the gluster volume info is listed as following:

Volume Name: gv0
Type: Distributed-Replicate
Volume ID: 4a6f96f8-b3fb-4550-bd19-e1a5dffad4d0
Status: Started
Snapshot Count: 0
Number of Bricks: 19 x 3 = 57
Transport-type: tcp
Options Reconfigured:
performance.cache-size: 10GB
performance.parallel-readdir: on
performance.readdir-ahead: on
network.inode-lru-limit: 200000
performance.md-cache-timeout: 600
performance.cache-invalidation: on
performance.stat-prefetch: on
features.cache-invalidation-timeout: 600
features.cache-invalidation: on
features.inode-quota: off
features.quota: off
cluster.quorum-reads: on
cluster.quorum-count: 2
cluster.quorum-type: fixed
transport.address-family: inet
nfs.disable: on
performance.client-io-threads: off
cluster.server-quorum-ratio: 51%



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