[IGNITE-6858] Wait for exchange inside GridReduceQueryExecutor.query which never finishes due to opened transaction

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3
• Fix Version/s: 2.4
• Component/s: sql
• Assignee: Alexey Scherbakov
• Reporter: Alexandr Kuramshin
• Created: 10/Nov/17 07:56
• Updated: 16/Nov/17 09:46
• Resolved: 16/Nov/17 09:46

Description

Infinite waiting in loop

        for (int attempt = 0;; attempt++) {
            if (attempt != 0) {
                try {
                    Thread.sleep(attempt * 10); // Wait for exchange.
                }
                catch (InterruptedException e) {
                    Thread.currentThread().interrupt();

                    throw new CacheException("Query was interrupted.", e);
                }
            }

because of exchange will wait for partition eviction with opened transaction in a related thread

        at java.lang.Thread.sleep(Native Method)
        at o.a.i.i.processors.query.h2.twostep.GridReduceQueryExecutor.query(GridReduceQueryExecutor.java:546)
        at o.a.i.i.processors.query.h2.IgniteH2Indexing$8.iterator(IgniteH2Indexing.java:1236)
        at o.a.i.i.processors.cache.QueryCursorImpl.iterator(QueryCursorImpl.java:95)