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[CI] [8.19] Fix ThreadPoolMergeExecutorServiceDiskSpaceTests testAvailableDiskSpaceMonitorWhenFileSystemStatErrors #130117

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Merged
merged 2 commits into from
Jun 26, 2025
Merged

[CI] [8.19] Fix ThreadPoolMergeExecutorServiceDiskSpaceTests testAvailableDiskSpaceMonitorWhenFileSystemStatErrors #130117

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681fa02
Fix ThreadPoolMergeExecutorServiceDiskSpaceTests testAvailableDiskSpa…
albertzaharovits Jun 26, 2025
0e48101
Merge branch '8.19' into backport-819-fix-fix-129149
albertzaharovits Jun 26, 2025
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42 changes: 18 additions & 24 deletions ...est/java/org/elasticsearch/index/engine/ThreadPoolMergeExecutorServiceDiskSpaceTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -324,10 +324,19 @@ public void testDiskSpaceMonitorStartsAsDisabled() throws Exception {
}

public void testAvailableDiskSpaceMonitorWhenFileSystemStatErrors() throws Exception {
aFileStore.usableSpace = randomLongBetween(1L, 100L);
aFileStore.totalSpace = randomLongBetween(1L, 100L);
bFileStore.usableSpace = randomLongBetween(1L, 100L);
bFileStore.totalSpace = randomLongBetween(1L, 100L);
long aUsableSpace;
long bUsableSpace;
do {
aFileStore.usableSpace = randomLongBetween(1L, 1000L);
aFileStore.totalSpace = randomLongBetween(1L, 1000L);
bFileStore.usableSpace = randomLongBetween(1L, 1000L);
bFileStore.totalSpace = randomLongBetween(1L, 1000L);
// the default 5% (same as flood stage level)
aUsableSpace = Math.max(aFileStore.usableSpace - aFileStore.totalSpace / 20, 0L);
bUsableSpace = Math.max(bFileStore.usableSpace - bFileStore.totalSpace / 20, 0L);
} while (aUsableSpace == bUsableSpace); // they must be different in order to distinguish the available disk space updates
long finalBUsableSpace = bUsableSpace;
long finalAUsableSpace = aUsableSpace;
boolean aErrorsFirst = randomBoolean();
if (aErrorsFirst) {
// the "a" file system will error when collecting stats
Expand Down Expand Up @@ -355,18 +364,10 @@ public void testAvailableDiskSpaceMonitorWhenFileSystemStatErrors() throws Excep
assertThat(availableDiskSpaceUpdates.size(), is(1));
if (aErrorsFirst) {
// uses the stats from "b"
assertThat(
getLast(availableDiskSpaceUpdates).getBytes(),
// the default 5% (same as flood stage level)
is(Math.max(bFileStore.usableSpace - bFileStore.totalSpace / 20, 0L))
);
assertThat(getLast(availableDiskSpaceUpdates).getBytes(), is(finalBUsableSpace));
} else {
// uses the stats from "a"
assertThat(
getLast(availableDiskSpaceUpdates).getBytes(),
// the default 5% (same as flood stage level)
is(Math.max(aFileStore.usableSpace - aFileStore.totalSpace / 20, 0L))
);
assertThat(getLast(availableDiskSpaceUpdates).getBytes(), is(finalAUsableSpace));
}
}
});
Expand All @@ -393,21 +394,14 @@ public void testAvailableDiskSpaceMonitorWhenFileSystemStatErrors() throws Excep
}
assertBusy(() -> {
synchronized (availableDiskSpaceUpdates) {
// the updates are different values
assertThat(availableDiskSpaceUpdates.size(), is(3));
if (aErrorsFirst) {
// uses the stats from "a"
assertThat(
getLast(availableDiskSpaceUpdates).getBytes(),
// the default 5% (same as flood stage level)
is(Math.max(aFileStore.usableSpace - aFileStore.totalSpace / 20, 0L))
);
assertThat(getLast(availableDiskSpaceUpdates).getBytes(), is(finalAUsableSpace));
} else {
// uses the stats from "b"
assertThat(
getLast(availableDiskSpaceUpdates).getBytes(),
// the default 5% (same as flood stage level)
is(Math.max(bFileStore.usableSpace - bFileStore.totalSpace / 20, 0L))
);
assertThat(getLast(availableDiskSpaceUpdates).getBytes(), is(finalBUsableSpace));
}
}
});
Expand Down