Github user ustcweizhou commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1209#discussion_r47437641
--- Diff: engine/schema/src/com/cloud/vm/dao/NicDaoImpl.java ---
@@ -222,11 +222,20 @@ public String getIpAddress(long networkId, long
instanceId) {
}
@Override
- public int countNics(long instanceId) {
- SearchCriteria<Integer> sc = CountBy.create();
- sc.setParameters("vmId", instanceId);
- List<Integer> results = customSearch(sc, null);
- return results.get(0);
+ public int getFreeDeviceId(long instanceId) {
+ Filter searchFilter = new Filter(NicVO.class, "deviceId", true,
null, null);
+ SearchCriteria<Integer> sc = deviceIdSearch.create();
+ sc.setParameters("instance", instanceId);
+ List<Integer> deviceIds = customSearch(sc, searchFilter);
+
+ int freeDeviceId = 0;
+ for (int deviceId : deviceIds) {
--- End diff --
@borisroman
we get the list of deviceId order by asc at first, eg, 0,1,2,4
then we check the list, for index i, if (deviceIds[i] != i), then i is the
first free ip.
in my example, the first free device_id is 3 (because deviceIds[3] = 4, not
3)
then we assign 3 as the device_id of new nic.
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