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Fix for MXS-335

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Response handling as aborted if there is not enough data.
This commit is contained in:
Johan Wikman
2015-08-27 12:51:25 +03:00
parent 45227c8875
commit b6f5108d29
1 changed files with 15 additions and 2 deletions
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17
server/modules/protocol/mysql_backend.c
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@ -551,6 +551,18 @@ static int gw_read_backend_event(DCB *dcb) {
rc = 0; rc = 0;
goto return_rc; goto return_rc;
} }
if (!read_buffer) {
LOGIF(LM, (skygw_log_write_flush(
LOGFILE_MESSAGE,
"%lu [gw_read_backend_event] "
"Read buffer unexpectedly null, even though response "
"not marked as complete. User: %s",
pthread_self(),
current_session->user)));
rc = 0;
goto return_rc;
}
} }
/** /**
* Check that session is operable, and that client DCB is * Check that session is operable, and that client DCB is
@ -1562,9 +1574,10 @@ static GWBUF* process_response_data (
* enough data to read the packet length. * enough data to read the packet length.
*/ */
init_response_status(readbuf, srvcmd, &npackets_left, &nbytes_left); init_response_status(readbuf, srvcmd, &npackets_left, &nbytes_left);
initial_packets = npackets_left;
initial_bytes = nbytes_left;
} }
initial_packets = npackets_left;
initial_bytes = nbytes_left;
} }
/** Only session commands with responses should be processed */ /** Only session commands with responses should be processed */
ss_dassert(npackets_left > 0); ss_dassert(npackets_left > 0);