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'zfs receive' fails with "dataset is busy" 

Receiving an incremental stream after an interrupted "zfs receive -s"
fails with the message "dataset is busy": this is because we still have
the hidden clone ../%recv from the resumable receive.

Improve the error message suggesting the existence of a partially
complete resumable stream from "zfs receive -s" which can be either
aborted ("zfs receive -A") or resumed ("zfs send -t").

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7129
Closes #7154
This commit is contained in:
LOLi 2018-02-12 21:28:59 +01:00 committed by Tony Hutter
parent a9ff89e05c
commit 1d805a534b
2 changed files with 18 additions and 2 deletions
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2
cmd/zfs/zfs_main.c
View File

@ -6072,7 +6072,7 @@ share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol,
(void) fprintf(stderr, gettext("cannot %s '%s': "
"Contains partially-completed state from "
"\"zfs receive -r\", which can be resumed with "
"\"zfs receive -s\", which can be resumed with "
"\"zfs send -t\"\n"),
cmdname, zfs_get_name(zhp));
return (1);

18
lib/libzfs/libzfs_sendrecv.c
View File

@ -3254,6 +3254,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
zfs_type_t type;
boolean_t toplevel = B_FALSE;
boolean_t zoned = B_FALSE;
boolean_t hastoken = B_FALSE;
begin_time = time(NULL);
bzero(origin, MAXNAMELEN);
@ -3535,6 +3536,11 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
/* we want to know if we're zoned when validating -o|-x props */
zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
/* may need this info later, get it now we have zhp around */
if (zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, NULL, 0,
NULL, NULL, 0, B_TRUE) == 0)
hastoken = B_TRUE;
/* gather existing properties on destination */
origprops = fnvlist_alloc();
fnvlist_merge(origprops, zhp->zfs_props);
@ -3741,9 +3747,19 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
break;
case EDQUOT:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination %s space quota exceeded"), name);
"destination %s space quota exceeded."), name);
(void) zfs_error(hdl, EZFS_NOSPC, errbuf);
break;
case EBUSY:
if (hastoken) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination %s contains "
"partially-complete state from "
"\"zfs receive -s\"."), name);
(void) zfs_error(hdl, EZFS_BUSY, errbuf);
break;
}
/* fallthru */
default:
(void) zfs_standard_error(hdl, ioctl_errno, errbuf);
}