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redis-cli: introduced --pipe-timeout.

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When in --pipe mode, after all the data transfer to the server is
complete, now redis-cli waits at max the specified amount of
seconds (30 by default, use 0 to wait forever) without receiving any
reply at all from the server. After this time limit the operation is
aborted with an error.

That's related to issue #681.
This commit is contained in:
antirez 2013-07-03 12:18:55 +02:00
parent fbb97c6b13
commit 1135e9faa2
1 changed files with 49 additions and 25 deletions
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74
src/redis-cli.c
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@ -58,6 +58,7 @@
#define OUTPUT_RAW 1
#define OUTPUT_CSV 2
#define REDIS_CLI_KEEPALIVE_INTERVAL 15 /* seconds */
#define REDIS_DEFAULT_PIPE_TIMEOUT 30 /* seconds */
static redisContext *context;
static struct config {
@ -77,6 +78,7 @@ static struct config {
int cluster_reissue_command;
int slave_mode;
int pipe_mode;
int pipe_timeout;
int getrdb_mode;
int stat_mode;
char *rdb_filename;
@ -714,6 +716,8 @@ static int parseOptions(int argc, char **argv) {
config.rdb_filename = argv[++i];
} else if (!strcmp(argv[i],"--pipe")) {
config.pipe_mode = 1;
} else if (!strcmp(argv[i],"--pipe-timeout") && !lastarg) {
config.pipe_timeout = atoi(argv[++i]);
} else if (!strcmp(argv[i],"--bigkeys")) {
config.bigkeys = 1;
} else if (!strcmp(argv[i],"--eval") && !lastarg) {
@ -766,29 +770,32 @@ static void usage() {
"redis-cli %s\n"
"\n"
"Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]\n"
" -h <hostname> Server hostname (default: 127.0.0.1)\n"
" -p <port> Server port (default: 6379)\n"
" -s <socket> Server socket (overrides hostname and port)\n"
" -a <password> Password to use when connecting to the server\n"
" -r <repeat> Execute specified command N times\n"
" -i <interval> When -r is used, waits <interval> seconds per command.\n"
" It is possible to specify sub-second times like -i 0.1\n"
" -n <db> Database number\n"
" -x Read last argument from STDIN\n"
" -d <delimiter> Multi-bulk delimiter in for raw formatting (default: \\n)\n"
" -c Enable cluster mode (follow -ASK and -MOVED redirections)\n"
" --raw Use raw formatting for replies (default when STDOUT is\n"
" not a tty)\n"
" --latency Enter a special mode continuously sampling latency\n"
" --latency-history Like --latency but tracking latency changes over time.\n"
" Default time interval is 15 sec. Change it using -i.\n"
" --slave Simulate a slave showing commands received from the master\n"
" --rdb <filename> Transfer an RDB dump from remote server to local file.\n"
" --pipe Transfer raw Redis protocol from stdin to server\n"
" --bigkeys Sample Redis keys looking for big keys\n"
" --eval <file> Send an EVAL command using the Lua script at <file>\n"
" --help Output this help and exit\n"
" --version Output version and exit\n"
" -h <hostname> Server hostname (default: 127.0.0.1)\n"
" -p <port> Server port (default: 6379)\n"
" -s <socket> Server socket (overrides hostname and port)\n"
" -a <password> Password to use when connecting to the server\n"
" -r <repeat> Execute specified command N times\n"
" -i <interval> When -r is used, waits <interval> seconds per command.\n"
" It is possible to specify sub-second times like -i 0.1\n"
" -n <db> Database number\n"
" -x Read last argument from STDIN\n"
" -d <delimiter> Multi-bulk delimiter in for raw formatting (default: \\n)\n"
" -c Enable cluster mode (follow -ASK and -MOVED redirections)\n"
" --raw Use raw formatting for replies (default when STDOUT is\n"
" not a tty)\n"
" --latency Enter a special mode continuously sampling latency\n"
" --latency-history Like --latency but tracking latency changes over time.\n"
" Default time interval is 15 sec. Change it using -i.\n"
" --slave Simulate a slave showing commands received from the master\n"
" --rdb <filename> Transfer an RDB dump from remote server to local file.\n"
" --pipe Transfer raw Redis protocol from stdin to server\n"
" --pipe-timeout <n> In --pipe mode, abort with error if after sending all data\n"
" no reply is received within <n> seconds.\n"
" Default timeout: %d. Use 0 to wait forever.\n"
" --bigkeys Sample Redis keys looking for big keys\n"
" --eval <file> Send an EVAL command using the Lua script at <file>\n"
" --help Output this help and exit\n"
" --version Output version and exit\n"
"\n"
"Examples:\n"
" cat /etc/passwd | redis-cli -x set mypasswd\n"
@ -801,7 +808,7 @@ static void usage() {
"When no command is given, redis-cli starts in interactive mode.\n"
"Type \"help\" in interactive mode for information on available commands.\n"
"\n",
version);
version, REDIS_DEFAULT_PIPE_TIMEOUT);
sdsfree(version);
exit(1);
}
@ -1119,6 +1126,7 @@ static void pipeMode(void) {
int eof = 0; /* True once we consumed all the standard input. */
int done = 0;
char magic[20]; /* Special reply we recognize. */
time_t last_read_time = time(NULL);
srand(time(NULL));
@ -1149,7 +1157,10 @@ static void pipeMode(void) {
strerror(errno));
exit(1);
}
if (nread > 0) redisReaderFeed(reader,ibuf,nread);
if (nread > 0) {
redisReaderFeed(reader,ibuf,nread);
last_read_time = time(NULL);
}
} while(nread > 0);
/* Consume replies. */
@ -1235,6 +1246,18 @@ static void pipeMode(void) {
if (obuf_len == 0 && eof) break;
}
}
/* Handle timeout, that is, we reached EOF, and we are not getting
* replies from the server for a few seconds, nor the final ECHO is
* received. */
if (eof && config.pipe_timeout > 0 &&
time(NULL)-last_read_time > config.pipe_timeout)
{
fprintf(stderr,"No replies for %d seconds: exiting.\n",
config.pipe_timeout);
errors++;
break;
}
}
redisReaderFree(reader);
printf("errors: %lld, replies: %lld\n", errors, replies);
@ -1490,6 +1513,7 @@ int main(int argc, char **argv) {
config.getrdb_mode = 0;
config.rdb_filename = NULL;
config.pipe_mode = 0;
config.pipe_timeout = REDIS_DEFAULT_PIPE_TIMEOUT;
config.bigkeys = 0;
config.stdinarg = 0;
config.auth = NULL;