Hello everyone.
I want to pick up *https://issues.apache.org/jira/browse/IGNITE-4487
<https://issues.apache.org/jira/browse/IGNITE-4487>* as my
first issue.
Please add me as contributor.
I already found that: in inner class
'GridCacheQueryAdapter.ScanQueryFallbackClosableIterator' in constructor is
called with method 'init()', but method 'init()' cannot be called with an
empty field 'nodes'. In source code it looks like:
private ScanQueryFallbackClosableIterator(int part, GridCacheQueryAdapter
qry,
GridCacheQueryManager qryMgr, GridCacheContext cctx) {
this.qry = qry;
this.qryMgr = qryMgr;
this.cctx = cctx;
this.part = part;
nodes = fallbacks(cctx.discovery().topologyVersionEx());
// !!! Here nodes.isEmpty()==true, and init() will fail in the
future. !!!
init();
}
I can fix it by adding some check in code, but i must know what behavior
are best in this case? As I understand it, the list of nodes is empty if
there are no nodes with the current partition, which means data loss, and
either need to return a meaningful exception, or ignore this situation. But
maybe I missed something.
