Hi:
For some reason. Every request Url have been modified before my ATS accept. eg:
www.example.com -> www.example.com&xxid=1. So i have a plug-in running on my
ATS to strip out this modified parameter, back to normal URL.
I did a stress test for ATS over night, i have a script to continue request
modified URL. i got this error message from my traffic.out log file.
[May 3 13:12:41.267] Server {1085303664} NOTE: OpenReadHead failed for
cachekey C0EE02F9 : vector inconsistency with 2736
[May 3 13:12:43.635] Server {1086356336} NOTE: OpenReadHead failed for
cachekey B23FE0E6 : vector inconsistency with 3864
[May 3 13:12:46.764] Server {1084250992} NOTE: OpenReadHead failed for
cachekey 23299E8B : vector inconsistency with 2872
[May 3 13:12:48.697] Server {1084250992} NOTE: OpenReadHead failed for
cachekey 487830EF : vector inconsistency with 2840
[May 3 13:13:03.815] Server {1086356336} NOTE: OpenReadHead failed for
cachekey 74893488 : vector inconsistency with 2888
[May 3 13:13:11.034] Server {1086356336} NOTE: OpenReadHead failed for
cachekey AD80A11B : vector inconsistency with 2768
[May 3 13:14:42.328] Server {1085303664} NOTE: OpenReadHead failed for
cachekey 33AABFC5 : vector inconsistency with 2840
I don't know what's reason caused this error. This is core part of my plug-in
down below:
const char *RGWIDName = "xxid";
static void handle_read_request(TSHttpTxn txnp, TSCont contp) {
TSMBuffer bufp;
TSMLoc hdr_loc;
int tmp_len;
int tmp_len1;
char *modified;
char *modifiedURL;
char *query;
const char *methodGet;
if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
TSError("couldn't retrieve client request header\n");
goto done;
}
/**strip out only work on get and head method*/
methodGet = TSHttpHdrMethodGet(bufp, hdr_loc, &tmp_len1);
if (methodGet == TS_HTTP_METHOD_GET || methodGet == TS_HTTP_METHOD_HEAD) {
modifiedURL = TSHttpTxnEffectiveUrlStringGet(txnp, &tmp_len);
modified = strstr(modifiedURL, RGWIDName);
if (modified != NULL) {
if (allLog)
TSTextLogObjectWrite(
allLog,
(char*) "[handle_read_request] Modified url
RGWValue is %s",
modified);
else
TSError("[handle_read_request] Error write into log");
/**set orginal url into header*/
int orginalURLLength = strlen(modifiedURL) - strlen(modified) - 1;
char orginalURL[orginalURLLength];
strncpy(orginalURL, modifiedURL, orginalURLLength);
char *start = orginalURL, *end = orginalURL + orginalURLLength;
TSMBuffer urlBuf = TSMBufferCreate();
TSMLoc urlLoc;
TSUrlCreate(urlBuf, &urlLoc);
if (TSUrlParse(urlBuf, urlLoc, (const char **) &start, end)
!= TS_PARSE_DONE) {
TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
TSUrlDestroy(urlBuf, urlLoc);
TSHandleMLocRelease(urlBuf, NULL, urlLoc);
TSError("[all-plugin<handle_read_request>] Can't not parse
URL");
goto done;
}
if (TSHttpHdrUrlSet(bufp, hdr_loc, urlLoc) == TS_ERROR) {
TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
TSUrlDestroy(urlBuf, urlLoc);
TSHandleMLocRelease(urlBuf, TS_NULL_MLOC, urlLoc);
TSError("[all-plugin<handle_read_request>] Can't not set URL");
goto done;
}
TSUrlDestroy(urlBuf, urlLoc);
TSHandleMLocRelease(urlBuf, TS_NULL_MLOC, urlLoc);
TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
goto done;
} else {
if (allLog)
TSTextLogObjectWrite(allLog,
(char*) "[handle_read_request] Normal url");
else
TSError("[handle_read_request] Error write into log");
}
TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
goto done;
}
TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
done: TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
}
I would like to know it's my plug-in problem or TS bug cuased this error?
Any Suggestion?
Thanks
PS: My ATS version is 2.1.7
