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fix issue 设置synchronous_standby_names参数为'dn_6002,dn_6003'不成功

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This commit is contained in:
cchen676
2021-03-01 16:43:27 +08:00
parent 9505e421bb
commit 38292de015
1 changed files with 65 additions and 84 deletions
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119
src/bin/gs_guc/cluster_guc.cpp
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@ -1906,11 +1906,19 @@ char* get_AZ_value(const char* value, const char* data_dir)
nRet = memset_s(level, sizeof(level) / sizeof(char), '\0', sizeof(level) / sizeof(char));
securec_check_c(nRet, "\0", "\0");
/* the value including ''', so skip it */
/* the value including ''' or space, so skip it */
nRet = memset_s(tmp, MAX_VALUE_LEN, '\0', MAX_VALUE_LEN);
securec_check_c(nRet, "\0", "\0");
for (i = 0, j = 1; j < (int)strlen(value) - 1; i++, j++) {
i = 0;
j = 1;
while (j < (int)strlen(value) - 1) {
if (!isspace(value[j])) {
tmp[i] = value[j];
i++;
j++;
} else {
j++;
}
}
/* check value length */
@ -1919,25 +1927,15 @@ char* get_AZ_value(const char* value, const char* data_dir)
return NULL;
}
/* must start with "FIRST " or "ANY " */
p = tmp;
// skip the space
while (isspace((unsigned char)*p))
p++;
if (strlen(p) == 0) {
len = strlen(emptyvalue) + 1;
if (strlen(p) == 0 || *p == '*') {
len = strlen(emptyvalue) + strlen(p) + 1;
result = (char*)pg_malloc_zero(len * sizeof(char));
nRet = snprintf_s(result, len, len - 1, "%s", emptyvalue);
nRet = snprintf_s(result, len, len - 1, "'%s'", p);
securec_check_ss_c(nRet, "\0", "\0");
return result;
}
if (0 != strncmp(p, "FIRST ", strlen("FIRST ")) && 0 != strncmp(p, "ANY ", strlen("ANY "))) {
(void)write_stderr("ERROR: The value of pamameter synchronous_standby_names is incorrect.\n");
return NULL;
}
// Assign values to preStr
/* FIRST branch */
if (0 == strncmp(p, "FIRST", strlen("FIRST"))) {
@ -1946,71 +1944,40 @@ char* get_AZ_value(const char* value, const char* data_dir)
p = p + strlen("FIRST");
}
/* ANY branch */
else {
if (0 == strncmp(p, "ANY", strlen("ANY"))) {
nRet = strncpy_s(preStr, sizeof(preStr) / sizeof(char), "ANY ", strlen("ANY "));
securec_check_c(nRet, "\0", "\0");
p = p + strlen("ANY");
}
// skip the space
while (isspace((unsigned char)*p))
p++;
if (strncmp(p, "NODE", strlen("NODE")) == 0) {
isNodeName = true;
p = p + strlen("NODE");
while (isspace((unsigned char)*p)) {
p++;
}
}
/* make sure it is digit and between 1 and 7, including 1 and 7 */
if (!isdigit((unsigned char)*p)) {
goto failed;
}
nRet = snprintf_s(level, sizeof(level) / sizeof(char), sizeof(level) / sizeof(char) - 1, "%c", (unsigned char)*p);
if (isdigit((unsigned char)*p)) {
nRet = snprintf_s(level, sizeof(level) / sizeof(char),
sizeof(level) / sizeof(char) - 1, "%c", (unsigned char)*p);
securec_check_ss_c(nRet, "\0", "\0");
if (atoi(level) < 1 || atoi(level) > 7) {
goto failed;
}
// next character
p++;
// the result is 'ANY/FIRST X
nRet = strncat_s(preStr, sizeof(preStr) / sizeof(char), level, strlen(level));
securec_check_c(nRet, "\0", "\0");
// skip the space
while (isspace((unsigned char)*p))
p++;
/* p like this: (AZ1,AZ2,..) or (dn_6001, dn_6002) */
if ('(' != (unsigned char)*p) {
goto failed;
}
p++;
/*q like this: AZ1,AZ2,..) */
q = p;
while (')' != (unsigned char)*p)
p++;
/*s like this: ) */
s = p;
p++;
if (strchr(p, '(') && strrchr(p, ')')) {
q = strchr(p, '(');
q++;
s = strrchr(p, ')');
s[0] = '\0';
/* skip this branch ANY 1()*/
if (NULL == q || 0 == (int)strlen(q)) {
} else {
goto failed;
}
} else {
q = p;
}
// skip the space
while (isspace((unsigned char)*p))
p++;
if (*p != '\0') {
/* skip this branch ANY 1() or ANY 1(*) */
if (*q == '\0' || *q == '*') {
goto failed;
}
@ -2028,23 +1995,30 @@ char* get_AZ_value(const char* value, const char* data_dir)
if (nodenameList == NULL) {
goto failed;
}
nodenameList[strlen(nodenameList)] = ',';
vptr = strtok_r(q, delims, &vouter_ptr);
len = strlen(q);
s = (char *)pg_malloc_zero(len * sizeof(char));
nRet = snprintf_s(s, len + 1, len, "%s", q);
securec_check_ss_c(nRet, s, "\0");
vptr = strtok_r(s, delims, &vouter_ptr);
while (vptr != NULL) {
p = vptr;
// p like this: dn_6001, dn_6002...
while (isspace((unsigned char)*p))
p++;
int len_p = strlen(p) + 1;
char *temp = (char *)pg_malloc_zero(len_p * sizeof(char));
nRet = snprintf_s(temp, len_p + 1, len_p, "%s,", p);
securec_check_ss_c(nRet, temp, "\0");
if (strstr(nodenameList, p) == NULL) {
if (strstr(nodenameList, temp) == NULL) {
goto failed;
}
vptr = strtok_r(NULL, delims, &vouter_ptr);
}
len = strlen(nodenameList);
GS_FREE(s);
nRet = snprintf_s(nodenameList, len + 1, len, "%s", q);
securec_check_ss_c(nRet, nodenameList, "\0");
} else if ('\0' == nodenameList[0]) {
(void)write_stderr("ERROR: There is no standby node name. Please make sure the value of "
"synchronous_standby_names is correct.\n");
@ -2062,10 +2036,17 @@ char* get_AZ_value(const char* value, const char* data_dir)
}
// ANY/FIRST X + nodenameList + () + '' + \0
len = strlen(preStr) + 5 + strlen(nodenameList);
if (atoi(level) >= 1) {
len = strlen(preStr) + 6 + strlen(nodenameList);
result = (char*)pg_malloc_zero(len * sizeof(char));
nRet = snprintf_s(result, len, len - 1, "'%s(%s)'", preStr, nodenameList);
nRet = snprintf_s(result, len, len - 1, "'%s%s(%s)'", preStr, level, nodenameList);
securec_check_ss_c(nRet, "\0", "\0");
} else {
len = 3 + strlen(nodenameList);
result = (char*)pg_malloc_zero(len * sizeof(char));
nRet = snprintf_s(result, len, len - 1, "'%s'", nodenameList);
securec_check_ss_c(nRet, "\0", "\0");
}
GS_FREE(nodenameList);
return result;