What does "Failed to get stripe-size" error message indicate from glusterfs logs in Red Hat Gluster Storage 3.1 ?

Issue

• What does "Failed to get stripe-size" error message indicate from glusterfs logs in Red Hat Gluster Storage 3.1 ?

~snippet from logs,

[2015-12-07 12:45:11.938332] I [dict.c:473:dict_get] (-->/usr/lib64/glusterfs/3.7.1/xlator/cluster/stripe.so(stripe_mknod_ifreg_cbk+0x120) [0x7f3f97adfa60] -->/usr/lib64/glusterfs/3.7.1/xlator/cluster/stripe.so(stripe_ctx_handle+0x92) [0x7f3f97ae9072] -->/usr/lib64/libglusterfs.so.0(dict_get+0x63) [0x7f3fa58534b3] ) 0-dict: !this || key=trusted.adv_disk1-stripe-1.stripe-size [Invalid argument]
[2015-12-07 12:45:11.938421] E [stripe-helpers.c:358:stripe_ctx_handle] 0-adv_disk1-stripe-1: Failed to get stripe-size
[2015-12-07 12:45:37.765127] I [dict.c:473:dict_get] (-->/usr/lib64/glusterfs/3.7.1/xlator/cluster/stripe.so(stripe_mknod_ifreg_cbk+0x120) [0x7f3f97adfa60] -->/usr/lib64/glusterfs/3.7.1/xlator/cluster/stripe.so(stripe_ctx_handle+0x92) [0x7f3f97ae9072] -->/usr/lib64/libglusterfs.so.0(dict_get+0x63) [0x7f3fa58534b3] ) 0-dict: !this || key=trusted.adv_disk1-stripe-1.stripe-size [Invalid argument]
[2015-12-07 12:45:37.765208] E [stripe-helpers.c:358:stripe_ctx_handle] 0-adv_disk1-stripe-1: Failed to get stripe-size
[2015-12-07 12:46:04.704882] I [dict.c:473:dict_get] (-->/usr/lib64/glusterfs/3.7.1/xlator/cluster/stripe.so(stripe_mknod_ifreg_cbk+0x120) [0x7f3f97adfa60] -->/usr/lib64/glusterfs/3.7.1/xlator/cluster/stripe.so(stripe_ctx_handle+0x92) [0x7f3f97ae9072] -->/usr/lib64/libglusterfs.so.0(dict_get+0x63) [0x7f3fa58534b3] ) 0-dict: !this || key=trusted.adv_disk1-stripe-1.stripe-size [Invalid argument]
[2015-12-07 12:46:04.704983] E [stripe-helpers.c:358:stripe_ctx_handle] 0-adv_disk1-stripe-1: Failed to get stripe-size