107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
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/****************************************************************
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* *
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* Copyright 2006, 2010 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_string.h"
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#include "gtm_stdio.h"
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#if !defined(__MVS__) && !defined(VMS)
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#include <sys/param.h>
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#endif
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#include <sys/time.h>
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#include "gtm_inet.h"
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#include <errno.h>
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#ifdef VMS
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#include <descrip.h> /* Required for gtmsource.h */
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#endif
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#include "error.h"
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#include "gdsroot.h"
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#include "gdsblk.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsbt.h"
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#include "gdsfhead.h"
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#include "filestruct.h"
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#include "repl_msg.h"
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#include "gtmsource.h"
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#include "repl_dbg.h"
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#include "repl_shutdcode.h"
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#include "repl_sem.h"
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#include "util.h"
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#include "repl_log.h"
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#include "is_proc_alive.h"
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GBLREF jnlpool_addrs jnlpool;
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GBLREF gtmsource_options_t gtmsource_options;
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GBLREF boolean_t holds_sem[NUM_SEM_SETS][NUM_SRC_SEMS];
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int gtmsource_showbacklog(void)
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{
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seq_num seq_num, jnl_seqno, read_jnl_seqno;
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gtmsource_local_ptr_t gtmsourcelocal_ptr;
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int4 index;
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boolean_t srv_alive;
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uint4 gtmsource_pid;
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error_def(ERR_SRCSRVNOTEXIST);
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assert(holds_sem[SOURCE][JNL_POOL_ACCESS_SEM]);
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jnl_seqno = jnlpool.jnlpool_ctl->jnl_seqno;
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if (NULL != jnlpool.gtmsource_local) /* Show backlog for a specific source server */
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gtmsourcelocal_ptr = jnlpool.gtmsource_local;
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else
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gtmsourcelocal_ptr = &jnlpool.gtmsource_local_array[0];
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for (index = 0; index < NUM_GTMSRC_LCL; index++, gtmsourcelocal_ptr++)
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{
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if ('\0' == gtmsourcelocal_ptr->secondary_instname[0])
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{
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assert(NULL == jnlpool.gtmsource_local);
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continue;
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}
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/* If SHOWBACKLOG on a specific secondary instance is requested, print the backlog information irrespective
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* of whether a source server for that instance is alive or not. For SHOWBACKLOG on ALL secondary instances
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* print backlog information only for those instances that have an active or passive source server alive.
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*/
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gtmsource_pid = gtmsourcelocal_ptr->gtmsource_pid;
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if ((NULL == jnlpool.gtmsource_local) && (0 == gtmsource_pid))
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continue;
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repl_log(stderr, TRUE, TRUE,
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"Initiating SHOWBACKLOG operation on source server pid [%d] for secondary instance [%s]\n",
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gtmsource_pid, gtmsourcelocal_ptr->secondary_instname);
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read_jnl_seqno = gtmsourcelocal_ptr->read_jnl_seqno;
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/* jnl_seqno >= read_jnl_seqno is the most common case; see gtmsource_readpool() for when the rare case can occur */
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seq_num = (jnl_seqno >= read_jnl_seqno) ? jnl_seqno - read_jnl_seqno : 0;
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util_out_print("!@UQ : backlog number of transactions written to journal pool and "
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"yet to be sent by the source server", TRUE, &seq_num);
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seq_num = jnl_seqno;
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if (0 != seq_num)
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seq_num--;
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util_out_print("!@UQ : sequence number of last transaction written to journal pool", TRUE, &seq_num);
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seq_num = read_jnl_seqno;
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if (0 != seq_num)
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seq_num--;
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util_out_print("!@UQ : sequence number of last transaction sent by source server", TRUE, &seq_num);
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srv_alive = (0 == gtmsource_pid) ? FALSE : is_proc_alive(gtmsource_pid, 0);
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if (!srv_alive)
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gtm_putmsg(VARLSTCNT(4) MAKE_MSG_WARNING(ERR_SRCSRVNOTEXIST), 2,
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LEN_AND_STR(gtmsourcelocal_ptr->secondary_instname));
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else if (gtmsourcelocal_ptr->mode == GTMSOURCE_MODE_PASSIVE)
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util_out_print("WARNING - Source Server is in passive mode, transactions are not being replicated", TRUE);
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if (NULL != jnlpool.gtmsource_local)
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break;
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}
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return (NORMAL_SHUTDOWN);
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}
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