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qemu: Do not require hostuuid in migration cookie

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Having hostuuid in migration cookie is a nice bonus since it provides an
easy way of detecting migration to the same host. However, requiring it
breaks backward compatibility with older libvirt releases.
This commit is contained in:
Jiri Denemark 2012-10-19 15:08:29 +02:00
parent 9fcc5436d3
commit 8d75e47ede
1 changed files with 16 additions and 15 deletions
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31
src/qemu/qemu_migration.c
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@ -576,22 +576,23 @@ qemuMigrationCookieXMLParse(qemuMigrationCookiePtr mig,
}
if (!(tmp = virXPathString("string(./hostuuid[1])", ctxt))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing hostuuid element in migration data"));
goto error;
VIR_WARN("Missing hostuuid element in migration data; cannot "
"detect migration to the same host");
} else {
if (virUUIDParse(tmp, mig->remoteHostuuid) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed hostuuid element in migration data"));
goto error;
}
if (memcmp(mig->remoteHostuuid, mig->localHostuuid,
VIR_UUID_BUFLEN) == 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Attempt to migrate guest to the same host %s"),
tmp);
goto error;
}
VIR_FREE(tmp);
}
if (virUUIDParse(tmp, mig->remoteHostuuid) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("malformed hostuuid element in migration data"));
goto error;
}
if (memcmp(mig->remoteHostuuid, mig->localHostuuid, VIR_UUID_BUFLEN) == 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Attempt to migrate guest to the same host %s"),
tmp);
goto error;
}
VIR_FREE(tmp);
/* Check to ensure all mandatory features from XML are also
* present in 'flags' */