gvsafronov/futriix
1
0
Fork 0
Code Issues Pull Requests Actions 8 Packages Projects Releases Wiki Activity

Dump recent backlog on master query generating errors.

Browse Source
This commit is contained in:
antirez 2020-05-05 13:40:33 +02:00
parent 415c4f613c
commit 51ab31dbab
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
src/networking.c
View File

@ -393,6 +393,35 @@ void addReplyErrorLength(client *c, const char *s, size_t len) {
serverLog(LL_WARNING,"== CRITICAL == This %s is sending an error "
"to its %s: '%s' after processing the command "
"'%s'", from, to, s, cmdname);
if (ctype == CLIENT_TYPE_MASTER && server.repl_backlog &&
server.repl_backlog_histlen > 0)
{
long long dumplen = 256;
if (server.repl_backlog_histlen < dumplen)
dumplen = server.repl_backlog_histlen;
/* Identify the first byte to dump. */
long long idx =
(server.repl_backlog_idx + (server.repl_backlog_size - dumplen)) %
server.repl_backlog_size;
/* Scan the circular buffer to collect 'dumplen' bytes. */
sds dump = sdsempty();
while(dumplen) {
long long thislen =
((server.repl_backlog_size - idx) < dumplen) ?
(server.repl_backlog_size - idx) : dumplen;
dump = sdscatrepr(dump,server.repl_backlog+idx,thislen);
dumplen -= thislen;
idx = 0;
}
/* Finally log such bytes: this is vital debugging info to
* understand what happened. */
serverLog(LL_WARNING,"Latest backlog is: '%s'", dump);
sdsfree(dump);
}
server.stat_unexpected_error_replies++;
}
}