kadirozde commented on a change in pull request #469: PHOENIX-5156 Consistent
Global Indexes for Non-Transactional Tables
URL: https://github.com/apache/phoenix/pull/469#discussion_r280630981
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File path:
phoenix-core/src/it/java/org/apache/phoenix/end2end/ConcurrentMutationsIT.java
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@@ -244,7 +244,7 @@ public void testConcurrentUpserts() throws Exception {
public void run() {
try {
Connection conn = DriverManager.getConnection(getUrl());
- for (int i = 0; i < 10000; i++) {
+ for (int i = 0; i < 5000; i++) {
Review comment:
The new design is not optimized for excessive number of concurrent writes
(and should not be). This test randomly updated the same 51 rows using 4
threads and each of these threads wrote 10000 mutations. These generated large
number of unverified index rows and index scan took about 2 minute on my laptop
to complete because each of these rows needs to be verified. The same test is
repeated 5 times which made the test takes about 10 minutes. The 10000 number
is an arbitrary number and 5000 also creates large number of concurrent
mutations. So, I reduced the number to cut the test time by half, to 5 minutes.
If this becomes a concern, I can revert it back but the test would take longer.
Before my changes, this test took 2.5 minutes to run.
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