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/*-
* Public Domain 2014-2016 MongoDB, Inc.
* Public Domain 2008-2014 WiredTiger, Inc.
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "format.h"
/*
* compaction --
* Periodically do a compaction operation.
*/
void *
compact(void *arg)
{
WT_CONNECTION *conn;
WT_SESSION *session;
u_int period;
int ret;
(void)(arg);
/* Compaction isn't supported for all data sources. */
if (DATASOURCE("helium") || DATASOURCE("kvsbdb"))
return (NULL);
/* Open a session. */
conn = g.wts_conn;
if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
die(ret, "connection.open_session");
/*
* Perform compaction at somewhere under 15 seconds (so we get at
* least one done), and then at 23 second intervals.
*/
for (period = mmrand(NULL, 1, 15);; period = 23) {
/* Sleep for short periods so we don't make the run wait. */
while (period > 0 && !g.workers_finished) {
--period;
sleep(1);
}
if (g.workers_finished)
break;
if ((ret = session->compact(
session, g.uri, NULL)) != 0 && ret != WT_ROLLBACK)
die(ret, "session.compact");
}
if ((ret = session->close(session, NULL)) != 0)
die(ret, "session.close");
return (NULL);
}
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