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glusterd: validate performance.nfs.* option values during volume set stage

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PROBLEM:

performance.nfs.* option values (which are of type boolean) are
not validated during the stage phase of 'volume set'.
The result - nfs graph generation fails during commit phase,
AFTER the option and its (invalid) value have been placed in
volinfo->dict.

CAUSE:

nfsperfxl_option_handler() - the function that validates the values of
performance.nfs.* options - never receives the (key,value) pair that
needs to be set, for validation during 'volume set' stage.

FIX:

In build_nfs_graph(), copy the (mod_)dict containing the (option,value)
parameters into set_dict before attempting to build the client graph
for the volume on which the operation is being performed.

Of course, an easier way out would be to simply do a 'volume reset' and
pretend nothing wrong happened!

Change-Id: I56b17d0239d58a9e0b7798933a3c8451e2675b69
BUG: 949930
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/4814
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
This commit is contained in:
Krutika Dhananjay 2013-04-09 13:08:22 +05:30 committed by Vijay Bellur
parent dcebed550e
commit 9d74f78141
2 changed files with 46 additions and 2 deletions
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27
tests/bugs/bug-949930.t Normal file
View File

@ -0,0 +1,27 @@
#!/bin/bash
. $(dirname $0)/../include.rc
. $(dirname $0)/../volume.rc
V1=patchy2
cleanup;
TEST glusterd;
TEST pidof glusterd;
TEST $CLI volume create $V0 $H0:$B0/${V0}{1,2};
TEST $CLI volume start $V0;
TEST $CLI volume create $V1 $H0:$B0/${V1}{1,2};
TEST $CLI volume start $V1;
TEST ! $CLI volume set $V0 performance.nfs.read-ahead blah
EXPECT '' volume_option $V0 performance.nfs.read-ahead
TEST $CLI volume set $V0 performance.nfs.read-ahead on
EXPECT "on" volume_option $V0 performance.nfs.read-ahead
EXPECT '' volume_option $V1 performance.nfs.read-ahead
cleanup;

21
xlators/mgmt/glusterd/src/glusterd-volgen.c
View File

@ -2809,6 +2809,8 @@ build_nfs_graph (volgen_graph_t *graph, dict_t *mod_dict)
char *skey = NULL;
int ret = 0;
char nfs_xprt[16] = {0,};
char *volname = NULL;
data_t *data = NULL;
this = THIS;
GF_ASSERT (this);
@ -2894,6 +2896,12 @@ build_nfs_graph (volgen_graph_t *graph, dict_t *mod_dict)
if (ret)
goto out;
if (mod_dict && (data = dict_get (mod_dict, "volume-name"))) {
volname = data->data;
if (strcmp (volname, voliter->volname) == 0)
dict_copy (mod_dict, set_dict);
}
ret = build_client_graph (&cgraph, voliter, set_dict);
if (ret)
goto out;
@ -3405,6 +3413,9 @@ validate_nfsopts (glusterd_volinfo_t *volinfo,
char transport_type[16] = {0,};
char *tt = NULL;
char err_str[4096] = {0,};
xlator_t *this = THIS;
GF_ASSERT (this);
graph.errstr = op_errstr;
@ -3415,7 +3426,7 @@ validate_nfsopts (glusterd_volinfo_t *volinfo,
snprintf (err_str, sizeof (err_str), "Changing nfs "
"transport type is allowed only for volumes "
"of transport type tcp,rdma");
gf_log ("", GF_LOG_ERROR, "%s", err_str);
gf_log (this->name, GF_LOG_ERROR, "%s", err_str);
*op_errstr = gf_strdup (err_str);
ret = -1;
goto out;
@ -3429,6 +3440,12 @@ validate_nfsopts (glusterd_volinfo_t *volinfo,
}
}
ret = dict_set_str (val_dict, "volume-name", volinfo->volname);
if (ret) {
gf_log (this->name, GF_LOG_ERROR, "Failed to set volume name");
goto out;
}
ret = build_nfs_graph (&graph, val_dict);
if (!ret)
ret = graph_reconf_validateopt (&graph.graph, op_errstr);
@ -3436,7 +3453,7 @@ validate_nfsopts (glusterd_volinfo_t *volinfo,
volgen_graph_free (&graph);
out:
gf_log ("glusterd", GF_LOG_DEBUG, "Returning %d", ret);
gf_log (this->name, GF_LOG_DEBUG, "Returning %d", ret);
return ret;
}