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Prevent RDB autosave from overwriting full resync results

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During the full database resync we may still have unsaved changes
on the receiving side. This causes a race condition between
synced data rename/load and the rename of rdbSave tempfile.
This commit is contained in:
Andrey Bugaevskiy 2018-09-19 19:58:39 +03:00
parent 0d6f11f4d1
commit 98a64523c4
1 changed files with 7 additions and 0 deletions
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7
src/replication.c
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@ -1814,6 +1814,13 @@ void syncWithMaster(aeEventLoop *el, int fd, void *privdata, int mask) {
} }
} }
/* Stop background saving for obsolete database state. */
server.dirty = 0;
if (server.rdb_child_pid != -1) {
kill(server.rdb_child_pid,SIGUSR1);
rdbRemoveTempFile(server.rdb_child_pid);
}
/* Prepare a suitable temp file for bulk transfer */ /* Prepare a suitable temp file for bulk transfer */
while(maxtries--) { while(maxtries--) {
snprintf(tmpfile,256, snprintf(tmpfile,256,