Examples with ThreadInfoSamplesRequest org.apache.flink.runtime.webmonitor.threadinfo.ThreadInfoSamplesRequest used on opensource projects

Example 1 with ThreadInfoSamplesRequest

use of org.apache.flink.runtime.webmonitor.threadinfo.ThreadInfoSamplesRequest in project flink by apache.

the class ThreadInfoSampleServiceTest method testThrowExceptionIfNumSamplesIsNegative.

/**
 * Test that negative numSamples parameter is handled.
 */
@Test
public void testThrowExceptionIfNumSamplesIsNegative() {
    try {
        threadInfoSampleService.requestThreadInfoSamples(new TestTask(), new ThreadInfoSamplesRequest(1, -1, DELAY_BETWEEN_SAMPLES, MAX_STACK_TRACK_DEPTH));
        fail("Expected exception not thrown");
    } catch (final IllegalArgumentException e) {
        assertThat(e.getMessage(), is(equalTo("numSamples must be positive")));
    }
}

Example 2 with ThreadInfoSamplesRequest

use of org.apache.flink.runtime.webmonitor.threadinfo.ThreadInfoSamplesRequest in project flink by apache.

the class ThreadInfoSampleServiceTest method testTruncateStackTraceIfLimitIsSpecified.

/**
 * Tests that stack traces are truncated when exceeding the configured depth.
 */
@Test(timeout = 10000L)
public void testTruncateStackTraceIfLimitIsSpecified() throws Exception {
    final List<ThreadInfoSample> threadInfoSamples1 = threadInfoSampleService.requestThreadInfoSamples(new TestTask(), requestParams).get();
    final List<ThreadInfoSample> threadInfoSamples2 = threadInfoSampleService.requestThreadInfoSamples(new TestTask(), new ThreadInfoSamplesRequest(1, NUMBER_OF_SAMPLES, DELAY_BETWEEN_SAMPLES, MAX_STACK_TRACK_DEPTH - 5)).get();
    for (ThreadInfoSample sample : threadInfoSamples1) {
        assertThat(sample.getStackTrace(), is(arrayWithSize(lessThanOrEqualTo(MAX_STACK_TRACK_DEPTH))));
        assertTrue(sample.getStackTrace().length <= MAX_STACK_TRACK_DEPTH);
    }
    for (ThreadInfoSample sample : threadInfoSamples2) {
        assertThat(sample.getStackTrace(), is(arrayWithSize(MAX_STACK_TRACK_DEPTH - 5)));
    }
}