b640e2944 added a test that now fails with valgrind
it fails for two resons:
1) the test samples the used memory and then limits the maxmemory to
that value, but it turns out this is not atomic and on slow machines
the background cron process that clean out old query buffers reduces
the memory so that the setting doesn't cause eviction.
2) the dbsize was tested late, after reading some invalidation messages
by that time more and more keys got evicted, partially draining the
db. this is not the focus of this fix (still a known limitation)
(cherry picked from commit 080ad5b0f297bc91f38cf49a7ff25605f4fcbe64)
The test was trying to wait for the replica to start loading the rdb
from the master before it kills the master, but it was actually waiting
for ROLE to be in "sync" mode, which corresponds to REPL_STATE_TRANSFER
that starts before the actual loading starts.
now instead it waits for the loading flag to be set.
Besides, the test was dependent on the previous configuration of the
servers, relying on the fact the replica is configured to persist
(either RDB of AOF), now it is set explicitly.
(cherry picked from commit 37cf8d8f7faedce704d4c18319e6bf72703e1ddc)
Saving string of more than 2GB to the RDB file, can result in corrupt RDB, or failure in rdbSave.
S
(cherry picked from commit 3fb4197a742d064236ae4fdccf9dc00ed3b538d3)
This will allow to use: RedisModule_CreateStringPrintf(ctx, "%s %c %s", "string1", 0, "string2");
On large string, the previous code would incrementally retry to double the output buffer.
now it uses the the return value of snprintf and grows to the right size in one step.
and also avoids an excessive strlen in sdscat at the end.
(cherry picked from commit 1ad4e18394eac68ab8bae1ef5a2920086ce0f9ba)
The bug occurs when 'callback' re-registers itself to a point
in the future and the execution time in non-negligible:
'now' refers to time BEFORE callback was executed and is used
to calculate 'next_period'.
We must get the actual current time when calculating 'next_period'
(cherry picked from commit 9cbdc8dcdbaf96869251dd9728c0876adf1b2492)
The RMAPI_FUNC_SUPPORTED was defined in the wrong place on redismodule.h
and was not visible to modules.
(cherry picked from commit 560d2dc0081bc35b81b6a64d25c4077fa2e69ad9)
Turns out this was broken since version 4.0 when we added sds size
classes.
The cluster code uses sds for the receive buffer, and then casts it to a
struct and accesses a 64 bit variable.
This commit replaces the use of sds with a simple reallocated buffer.
(cherry picked from commit b71d06c269878887eed85b63a731c3d4ad7a8b12)
When client tracking is enabled signalModifiedKey can increase memory usage,
this can cause the loop in performEvictions to keep running since it was measuring
the memory usage impact of signalModifiedKey.
The section that measures the memory impact of the eviction should be just on dbDelete,
excluding keyspace notification, client tracking, and propagation to AOF and replicas.
This resolves part of the problem described in #8069
p.s. fix took 1 minute, test took about 3 hours to write.
(cherry picked from commit b640e2944e42759412ac67228cf64c43dfbed9c3)
This PR not only fixes the problem that swapdb does not make the
transaction fail, but also optimizes the FLUSHALL and FLUSHDB command to
set the CLIENT_DIRTY_CAS flag to avoid unnecessary traversal of clients.
FLUSHDB was changed to first iterate on all watched keys, and then on the
clients watching each key.
Instead of iterating though all clients, and for each iterate on watched keys.
Co-authored-by: Oran Agra <oran@redislabs.com>
(cherry picked from commit f571f8467cecb69a1c7c6810a445addfb802d85a)
This isn't a leak, just an warning due to unreachable
allocation on the fork child.
Problem created by 4192faa
(cherry picked from commit 997c2dc7ec652ac49a6f1a3a5bb79627aff1a545)
