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fix dblink info core

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obdev 2023-03-02 16:57:37 +00:00 committed by ob-robot
parent c2fea4f4d0
commit 08a372ab33
1 changed files with 18 additions and 6 deletions
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24
src/sql/dblink/ob_dblink_utils.cpp
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@ -489,19 +489,26 @@ int ObDblinkCtxInSession::get_reverse_link(ObReverseLink *&reverse_dblink)
} else if (OB_FAIL(session_info_->get_sys_variable(share::SYS_VAR__SET_REVERSE_DBLINK_INFOS, value))) {
LOG_WARN("failed to get SYS_VAR_SET_REVERSE_DBLINK_INFOS", K(value), K(ret));
} else if (NULL == reverse_dblink_ || 0 != last_reverse_info_values_.compare(value)) {
if (!value.empty()){
if (!value.empty()){ // get a new valid REVERSE_DBLINK_INFOS, need create or update ObReverseLink
void *ptr = NULL;
void *last_new_value_ptr = NULL;
int64_t last_new_value_length = value.length();
if (OB_ISNULL(ptr = arena_alloc_.alloc(sizeof(ObReverseLink)))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("failed to alloc memory", K(ret));
LOG_WARN("failed to alloc memory", K(ret), K(sizeof(ObReverseLink)));
} else if (OB_ISNULL(last_new_value_ptr = arena_alloc_.alloc(last_new_value_length))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("failed to alloc memory", K(ret), K(last_new_value_length));
} else {
MEMCPY(last_new_value_ptr, value.ptr(), last_new_value_length);
last_reverse_info_values_.assign((char *)last_new_value_ptr, last_new_value_length);
reverse_dblink_ = new(ptr) ObReverseLink(arena_alloc_);
char *new_buff = NULL;
int64_t new_size = 0;
int64_t pos = 0;
LOG_DEBUG("get SYS_VAR_SET_REVERSE_DBLINK_INFOS", K(value));
if (OB_FAIL(ObHexUtilsBase::unhex(value, arena_alloc_, new_buff, new_size))) {
LOG_WARN("failed to unhex", K(value), K(new_size), K(ret));
LOG_DEBUG("get SYS_VAR_SET_REVERSE_DBLINK_INFOS", K(last_reverse_info_values_));
if (OB_FAIL(ObHexUtilsBase::unhex(last_reverse_info_values_, arena_alloc_, new_buff, new_size))) {
LOG_WARN("failed to unhex", K(last_reverse_info_values_), K(new_size), K(ret));
} else if (OB_FAIL(reverse_dblink_->deserialize(new_buff, new_size, pos))) {
LOG_WARN("failed to deserialize reverse_dblink_", K(new_size), K(ret));
} else {
@ -509,11 +516,16 @@ int ObDblinkCtxInSession::get_reverse_link(ObReverseLink *&reverse_dblink)
LOG_DEBUG("succ to get reverse link from seesion", K(session_info_->get_sessid()), K(*reverse_dblink), KP(reverse_dblink));
}
}
} else if (OB_ISNULL(reverse_dblink_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected NULL ptr", K(ret));
} else {
reverse_dblink = reverse_dblink_;
LOG_DEBUG("succ to get reverse link from seesion", K(session_info_->get_sessid()), K(*reverse_dblink), KP(reverse_dblink));
}
} else {
reverse_dblink = reverse_dblink_;
LOG_DEBUG("succ to get reverse link from seesion", K(session_info_->get_sessid()), K(*reverse_dblink), KP(reverse_dblink));
}
last_reverse_info_values_.assign(value.ptr(), value.length());
return ret;
}