* Version $Id$
*/
/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+ Copyright (C) 2001-2004 Kern Sibbald and John Walker
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
* MEDIA_DBR mr (zeroed out)
* create -- whether or not to create a new volume
*/
-int find_next_volume_for_append(JCR *jcr, MEDIA_DBR *mr, int create)
+int find_next_volume_for_append(JCR *jcr, MEDIA_DBR *mr, bool create)
{
- int ok, retry = 0;
+ int retry = 0;
+ bool ok;
+ bool InChanger;
mr->PoolId = jcr->PoolId;
bstrncpy(mr->MediaType, jcr->store->media_type, sizeof(mr->MediaType));
Dmsg2(120, "CatReq FindMedia: Id=%d, MediaType=%s\n", mr->PoolId, mr->MediaType);
+ /*
+ * If we are using an Autochanger, restrict Volume
+ * search to the Autochanger on the first pass
+ */
+ InChanger = jcr->store->autochanger;
/*
* Find the Next Volume for Append
*/
db_lock(jcr->db);
for ( ;; ) {
- strcpy(mr->VolStatus, "Append"); /* want only appendable volumes */
- ok = db_find_next_volume(jcr, jcr->db, 1, mr);
+ bstrncpy(mr->VolStatus, "Append", sizeof(mr->VolStatus)); /* want only appendable volumes */
+ /*
+ * 1. Look for volume with "Append" status.
+ */
+ ok = db_find_next_volume(jcr, jcr->db, 1, InChanger, mr);
Dmsg2(100, "catreq after find_next_vol ok=%d FW=%d\n", ok, mr->FirstWritten);
if (!ok) {
- /* Well, try finding recycled volumes */
- ok = find_recycled_volume(jcr, mr);
+ /*
+ * 2. Try finding a recycled volume
+ */
+ ok = find_recycled_volume(jcr, InChanger, mr);
Dmsg2(100, "find_recycled_volume %d FW=%d\n", ok, mr->FirstWritten);
if (!ok) {
- prune_volumes(jcr);
- ok = recycle_oldest_purged_volume(jcr, mr);
- Dmsg2(200, "find_recycled_volume2 %d FW=%d\n", ok, mr->FirstWritten);
- if (!ok && create) {
- /* See if we can create a new Volume */
- ok = newVolume(jcr, mr);
+ /*
+ * 3. Try recycling any purged volume
+ */
+ ok = recycle_oldest_purged_volume(jcr, InChanger, mr);
+ if (!ok) {
+ /*
+ * 4. Try pruning Volumes
+ */
+ prune_volumes(jcr);
+ ok = recycle_oldest_purged_volume(jcr, InChanger, mr);
+ if (InChanger) {
+ InChanger = false;
+ if (!ok) {
+ continue; /* retry again accepting any volume */
+ }
+ }
+ Dmsg2(200, "find_recycled_volume2 %d FW=%d\n", ok, mr->FirstWritten);
+ if (!ok && create) {
+ /*
+ * 5. Try "creating" a new Volume
+ */
+ ok = newVolume(jcr, mr);
+ }
}
}
+ /*
+ * Look at more drastic ways to find an Appendable Volume
+ */
if (!ok && (jcr->pool->purge_oldest_volume ||
jcr->pool->recycle_oldest_volume)) {
Dmsg2(200, "No next volume found. PurgeOldest=%d\n RecyleOldest=%d",
jcr->pool->purge_oldest_volume, jcr->pool->recycle_oldest_volume);
/* Find oldest volume to recycle */
- ok = db_find_next_volume(jcr, jcr->db, -1, mr);
+ ok = db_find_next_volume(jcr, jcr->db, -1, InChanger, mr);
Dmsg1(400, "Find oldest=%d\n", ok);
if (ok) {
UAContext *ua;
Dmsg0(400, "Try purge.\n");
- /* Try to purge oldest volume */
+ /*
+ * 5. Try to purging oldest volume only if not UA calling us.
+ */
ua = new_ua_context(jcr);
- if (jcr->pool->purge_oldest_volume) {
+ if (jcr->pool->purge_oldest_volume && create) {
Jmsg(jcr, M_INFO, 0, _("Purging oldest volume \"%s\"\n"), mr->VolumeName);
ok = purge_jobs_from_volume(ua, mr);
- } else {
+ /*
+ * 5. or try recycling the oldest volume
+ */
+ } else if (jcr->pool->recycle_oldest_volume) {
Jmsg(jcr, M_INFO, 0, _("Pruning oldest volume \"%s\"\n"), mr->VolumeName);
ok = prune_volume(ua, mr);
}
}
}
}
- /* Check if use duration applies, then if it has expired */
Dmsg2(100, "VolJobs=%d FirstWritten=%d\n", mr->VolJobs, mr->FirstWritten);
- if (ok && mr->VolJobs > 0 && mr->VolUseDuration > 0 &&
- strcmp(mr->VolStatus, "Append") == 0) {
- utime_t now = time(NULL);
- if (mr->VolUseDuration <= (now - mr->FirstWritten)) {
- ok = FALSE;
- Dmsg4(100, "Duration=%d now=%d start=%d now-start=%d\n",
- (int)mr->VolUseDuration, (int)now, (int)mr->FirstWritten,
- (int)(now-mr->FirstWritten));
- Jmsg(jcr, M_INFO, 0, _("Max configured use duration exceeded. "
- "Marking Volume \"%s\" as Used.\n"), mr->VolumeName);
- strcpy(mr->VolStatus, "Used"); /* yes, mark as used */
- if (!db_update_media_record(jcr, jcr->db, mr)) {
- Jmsg(jcr, M_ERROR, 0, _("Catalog error updating volume \"%s\". ERR=%s"),
- mr->VolumeName, db_strerror(jcr->db));
- }
+ if (ok) {
+ /* If we can use the volume, check if it is expired */
+ if (has_volume_expired(jcr, mr)) {
if (retry++ < 200) { /* sanity check */
continue; /* try again from the top */
} else {
db_unlock(jcr->db);
return ok;
}
+
+/*
+ * Check if any time limits or use limits have expired
+ * if so, set the VolStatus appropriately.
+ */
+bool has_volume_expired(JCR *jcr, MEDIA_DBR *mr)
+{
+ bool expired = false;
+ /*
+ * Check limits and expirations if "Append" and it has been used
+ * i.e. mr->VolJobs > 0
+ *
+ */
+ if (strcmp(mr->VolStatus, "Append") == 0 && mr->VolJobs > 0) {
+ /* First handle Max Volume Bytes */
+ if ((mr->MaxVolBytes > 0 && mr->VolBytes >= mr->MaxVolBytes)) {
+ Jmsg(jcr, M_INFO, 0, _("Max Volume bytes exceeded. "
+ "Marking Volume \"%s\" as Full.\n"), mr->VolumeName);
+ bstrncpy(mr->VolStatus, "Full", sizeof(mr->VolStatus));
+ expired = true;
+
+ /* Now see if Volume should only be used once */
+ } else if (mr->VolBytes > 0 && jcr->pool->use_volume_once) {
+ Jmsg(jcr, M_INFO, 0, _("Volume used once. "
+ "Marking Volume \"%s\" as Used.\n"), mr->VolumeName);
+ bstrncpy(mr->VolStatus, "Used", sizeof(mr->VolStatus));
+ expired = true;
+
+ /* Now see if Max Jobs written to volume */
+ } else if (mr->MaxVolJobs > 0 && mr->MaxVolJobs <= mr->VolJobs) {
+ Jmsg(jcr, M_INFO, 0, _("Max Volume jobs exceeded. "
+ "Marking Volume \"%s\" as Used.\n"), mr->VolumeName);
+ bstrncpy(mr->VolStatus, "Used", sizeof(mr->VolStatus));
+ expired = true;
+
+ /* Now see if Max Files written to volume */
+ } else if (mr->MaxVolFiles > 0 && mr->MaxVolFiles <= mr->VolFiles) {
+ Jmsg(jcr, M_INFO, 0, _("Max Volume files exceeded. "
+ "Marking Volume \"%s\" as Used.\n"), mr->VolumeName);
+ bstrncpy(mr->VolStatus, "Used", sizeof(mr->VolStatus));
+ expired = true;
+
+ /* Finally, check Use duration expiration */
+ } else if (mr->VolUseDuration > 0) {
+ utime_t now = time(NULL);
+ /* See if Vol Use has expired */
+ if (mr->VolUseDuration <= (now - mr->FirstWritten)) {
+ Jmsg(jcr, M_INFO, 0, _("Max configured use duration exceeded. "
+ "Marking Volume \"%s\" as Used.\n"), mr->VolumeName);
+ bstrncpy(mr->VolStatus, "Used", sizeof(mr->VolStatus));
+ expired = true;
+ }
+ }
+ }
+ if (expired) {
+ /* Need to update media */
+ if (!db_update_media_record(jcr, jcr->db, mr)) {
+ Jmsg(jcr, M_ERROR, 0, _("Catalog error updating volume \"%s\". ERR=%s"),
+ mr->VolumeName, db_strerror(jcr->db));
+ }
+ }
+ return expired;
+}
+
+/*
+ * Try hard to recycle the current volume
+ *
+ * Returns: on failure - reason = NULL
+ * on success - reason - pointer to reason
+ */
+void check_if_volume_valid_or_recyclable(JCR *jcr, MEDIA_DBR *mr, const char **reason)
+{
+ int ok;
+
+ *reason = NULL;
+
+ /* Check if a duration or limit has expired */
+ if (has_volume_expired(jcr, mr)) {
+ *reason = "volume has expired";
+ /* Keep going because we may be able to recycle volume */
+ }
+
+ /*
+ * Now see if we can use the volume as is
+ */
+ if (strcmp(mr->VolStatus, "Append") == 0 ||
+ strcmp(mr->VolStatus, "Recycle") == 0) {
+ *reason = NULL;
+ return;
+ }
+
+ /*
+ * Check if the Volume is already marked for recycling
+ */
+ if (strcmp(mr->VolStatus, "Purged") == 0) {
+ if (recycle_volume(jcr, mr)) {
+ Jmsg(jcr, M_INFO, 0, "Recycled current volume \"%s\"\n", mr->VolumeName);
+ *reason = NULL;
+ return;
+ } else {
+ /* In principle this shouldn't happen */
+ *reason = "and recycling of current volume failed";
+ return;
+ }
+ }
+
+ /* At this point, the volume is not valid for writing */
+ *reason = "but should be Append, Purged or Recycle";
+
+ /*
+ * What we're trying to do here is see if the current volume is
+ * "recyclable" - ie. if we prune all expired jobs off it, is
+ * it now possible to reuse it for the job that it is currently
+ * needed for?
+ */
+ if ((mr->LastWritten + mr->VolRetention) < (utime_t)time(NULL)
+ && mr->Recycle && jcr->pool->recycle_current_volume
+ && (strcmp(mr->VolStatus, "Full") == 0 ||
+ strcmp(mr->VolStatus, "Used") == 0)) {
+ /*
+ * Attempt prune of current volume to see if we can
+ * recycle it for use.
+ */
+ UAContext *ua;
+
+ ua = new_ua_context(jcr);
+ ok = prune_volume(ua, mr);
+ free_ua_context(ua);
+
+ if (ok) {
+ /* If fully purged, recycle current volume */
+ if (recycle_volume(jcr, mr)) {
+ Jmsg(jcr, M_INFO, 0, "Recycled current volume \"%s\"\n", mr->VolumeName);
+ *reason = NULL;
+ } else {
+ *reason = "but should be Append, Purged or Recycle (recycling of the "
+ "current volume failed)";
+ }
+ } else {
+ *reason = "but should be Append, Purged or Recycle (cannot automatically "
+ "recycle current volume, as it still contains unpruned data)";
+ }
+ }
+}
projects / bacula / bacula / blobdiff