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Merge pull request #6905 from guybe7/xgroup_destroy_unblock

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XGROUP DESTROY should unblock XREADGROUP with -NOGROUP
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Salvatore Sanfilippo 2020-02-20 12:54:14 +01:00 committed by GitHub
commit 9fe02ce1cd
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2 changed files with 11 additions and 0 deletions
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2
src/t_stream.c
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@ -1850,6 +1850,8 @@ NULL
server.dirty++;
notifyKeyspaceEvent(NOTIFY_STREAM,"xgroup-destroy",
c->argv[2],c->db->id);
/* We want to unblock any XREADGROUP consumers with -NOGROUP. */
signalKeyAsReady(c->db,c->argv[2]);
} else {
addReply(c,shared.czero);
}

9
tests/unit/type/stream-cgroups.tcl
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@ -161,6 +161,15 @@ start_server {
assert {[$rd read] == {}} ;# before the fix, client didn't even block, but was served synchronously with {mystream {}}
}
test {XGROUP DESTROY should unblock XREADGROUP with -NOGROUP} {
r del mystream
r XGROUP CREATE mystream mygroup $ MKSTREAM
set rd [redis_deferring_client]
$rd XREADGROUP GROUP mygroup Alice BLOCK 100 STREAMS mystream ">"
r XGROUP DESTROY mystream mygroup
assert_error "*NOGROUP*" {$rd read}
}
test {XCLAIM can claim PEL items from another consumer} {
# Add 3 items into the stream, and create a consumer group
r del mystream