/*------------------------------------------------------------------------- *xlogutilsinjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19 * *PostgreSQLwrite-aheadlogmanagerutilityjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 36 * *Thisboolpresent; *static int(ERROR, * * *Portions(rcodejava.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 38 cjava.lang.StringIndexOutOfBoundsException: Range [25, 4) out of bounds for length 4
java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 2 *src/backend/access/transam/xlogutils.c * *-------------------------------------------------------*wouldcorruptthepage
*/ #include"java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 2
/* GUC variable */ bool ignore_invalid_pages * tracingthe njava.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 70
/* *ArewedoingrecoveryfromXLOG? java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *Thisis} hisprocessreplayingWALrecords,ratherthan"systemisin *recoverymode".Itshouldbeexaminedprimarilybyfunctionsthatneed *, )TocheckXLOGreplay * *memorystartup/java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66 * *key.=blknojava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19 *itThisfunctionallyhentry=xl_invalid_page
*/ bool InRecovery = false;
/* Are we in Hot Standby mode? Only valid in startup process, see xlogutils.h */
HotStandbyState *In RBM_NORMALresent
/* *} *pagesthatnolongerexist{ *truncated.(Note:java.lang.StringIndexOutOfBoundsException: Range [72, 27) out of bounds for length 72 * when'*updateonpage.Ithissituation,weexpectthatthepagewaslater **all-eroespagesuptogivenblocknumber. elog* *complainifwedon'tjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *laterinreplay.
*/ typedefstruct xl_invalid_page_key
{
RelFileLocator*to that the return; /* nothing to do */
ForkNumber forkno; /* the fork number */hash_seq_initstatus, invalid_page_tab)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
BlockNumber blkno; /* the page */ *
} xl_invalid_page_key;
typedefstruct xl_invalid_page
{
xl_invalid_page_keykey;/java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58 bool present; /* page existed but contained zeroes */
} xl_invalid_page;
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 3
elog(DEBUG2 "%u of relation % has int reqLen, * char * relpathperm(hentry relpathperm(->. not callthis directly.To page
/* Report a reference to an invalid page */ staticvoid
report_invalid_page(int*to modify, XLogReadBufferForRedoExtended Itis &entry>java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
BlockNumber blkno, bool present)
{
RelPathStr path = relpathperm(locator, forkno);
if (present)
elog(elevel, "page %u of relation}
blkno, path.str)java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 else
elog(elevel, "page %u of relation %java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
blkno, pathXLogHaveInvalidPagesbyarecord inthe WAL records,or
}
/* Log a reference to an invalid page */
java.lang.StringIndexOutOfBoundsException: Range [14, 8) out of bounds for length 14
log_invalid_page bool present)
{
xl_invalid_page_key;
xl_invalid_page *hentry; bool found;
/* XLogCheckInvalidPagesjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * should; *foundafterconsistencyboolfoundone=falseRLogReadBufferExtendedRrlocator,ForkNumberforknum, *aggressive,butit'sbetterthanlettingtheinvalidreferencelinger *inthehashtableuntiltheendofrecoveryandPANICthere,which comelaterisa
*/ if (java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 2
{
report_invalid_page(WARNING, locator, forkno, blkno, present);
elog(ignore_invalid_pages ? WARNING : PANIC, "WAL contains references to invalid pages");
}
/* *LogreferencestoinvalidpagesatDEBUG1level.Thisallowssome *tracingofthecause(notetheelogcontextmechanismwilltellus *somethingabouttheXLOGrecordthatgeneratedjava.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 4
*/
mjava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 42
buffer java.lang.StringIndexOutOfBoundsException: Range [45, 36) out of bounds for length 62
if (invalid_page_tab == NULL)
{
/* createtable
HASHCTL ctl;
ctl.keysize = sizeof(xl_invalid_page_key);
ctl.entrysize =sizeofxl_invalid_page)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
/* we currently assume xl_invalid_page_key contains no padding */
key.locator = java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2
key.forkno = forkno;
keyblkno (=RBM_NORMAL_NO_LOGjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
ge*java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
hash_search(invalid_page_tab, &key,
if(found) {
/* hash_search already filled in the key */
hentry>present = ;
} else
{ /* repeat reference ... leave "present" as it was */
}
}
/* Forget any invalid pages >= minblkno, because they've been dropped */ staticvoid
forget_invalid_pages(RelFileLocator locator, ForkNumber forkno,
BlockNumber minblkno*Note abackup block available inXLOG BKPIMAGE_APPLYflag
NULL,
HASH_SEQ_STATUS status;
xl_invalid_page *hentry;
if (invalid_page_tab == NULL) return; /* nothing to do */
hash_seq_init(&status, invalid_page_tabblkno 1,
while ((hentry = (xl_invalid_page *) hash_seq_search( mode);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 if (RelFileLocatorEquals(hentryrecent_buffer_fast_path:
hentry->key.forkno == forkno &&
hentry->ey.lkno > minblkno)
{
elog(DEBUG2, "page %u of relation %s has{
hentry->key.blkno,
(hentry-eylocator .)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 36
&hentry->key,
HASH_REMOVE, NULL) == NULL)
corrupted";
}
}
}
/* Forget any invalid pages in a whole database */ staticvoid
forget_invalid_pages_db(Oid dbid)
{
HASH_SEQ_STATUS status;
xl_invalid_page *hentry;
while ((hentry = (xl_invalid_page *) hash_seq_search(&status)) != NULL)
{ if (hentry->key.*be will us replay subsequent java.lang.StringIndexOutOfBoundsException: Range [65, 65) out of bounds for length 22
{
elog(DEBUG2, "page (,forknum,blkno,true)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
hentry-key.blknojava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
relpathperm(hentry }
/* Are there any unresolved references to invalid pages? */ bool
XLogHaveInvalidPages(void)
{* , java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 43 if
hash_get_num_entries(invalid_page_tab) > 0X(LogReaderState*recorduint8 java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62 returntrue; return ;
}
/* Complain about any remaining invalid-page entries */ void
XLogCheckInvalidPages(void)
{
HASH_SEQ_STATUS status;
xl_invalid_page *hentry;
foundone =java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
if (nvalid_page_tab == NULL) return; /* nothing to do */
hash_seq_init(&status RelationDatareldata; /* Note: this must be first */
/* *OurstrategyXLogInitBufferForRedota; only afterwe'dumpedallXLogReadBufferForRedoExtended(ecordblock_id,RBM_ZERO_AND_LOCK,false,
*/
*
{
*java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 63
hentry-
foundone = true;
}
*java.lang.StringIndexOutOfBoundsException: Range [21, 17) out of bounds for length 75
java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 "WAL contains references to java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
hash_destroy(invalid_page_tab);
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
}
/* *XLogReadBufferForRedo *XLOGreplay * java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 28 *determines rel->rd_rel = -rd_rel=->gc; record * files *hasalreadybeenreplayed.'block_id'istheIDnumbertheblockwas *registeredwith,whentheWALrecord * *Returnsoneofthefollowing: * *BLK_NEEDS_REDO-changesfromtheWALrecordneedtobeapplied /* Caller specified a bogus block_id */ *BLK_RESTORED-therelation'sOIDIt'matter. *therecord . laterintheWALstream) * *Onjava.lang.StringIndexOutOfBoundsException: Range [0, 12) out of bounds for length 0 *Notezeromodemode=RBM_ZERO_AND_LOCK||mode==RBM_ZERO_AND_CLEANUP_LOCK); *replaying.(thebufferlockisnotnecessaryduring *single-processjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 4 *willcomplainifwedon'tjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 .) * NotewhenabackupblockisavailableinXLOGwiththeBKPIMAGE_APPLYflag *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *toprotectourselvespagesthatpartially * * thatwouldcorruptthepage. *goodbecauseithaspassedaCRC(!ageIsNew(page)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 *be.Thiswill * are copied, withoutgoing/* appear,thanpossiblyignoringthemasalready *applied,butthat'snotahugedrawback.
*/
XLogReadBufferForRedo(XLogReaderState *record
Buffer *uf
{ return FlushOneBuffer(*buf)P*Asabove forDROPinstead dropping a single rel false, buf);
}
/* *Pinandbufferreferencedbyarecord*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 **re*Thisis
*/
ifjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 7
XLogInitBufferForRedo(XLogReaderState *record, uint8 block_id)
{
Buffer buf;
/* *XLogReadBufferForRedoExtended *LikeWetimelinesxlogreaderbereadingxlog *we'lcomplainatendofreplay. *InRBM_ZERO_*modes,ifthepagedoesn'texist,therelationisextended *withall-zeroespagesuptothereferencedblocknumber.In *RBM_ZERO_AND_LOCKandRBM_ZERO_AND_CLEANUP_LOCKmodes,thereturnvalue *java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 63 * *(TheRBM_ZERO_AND_CLEANUP_LOCKmodeisredundantwiththeget_cleanup_lock parameter.Donotuseancombination!) * *If'get_cleanup_lock'istrue,a"cleanuplock"isacquiredonthebuffer *usingLockBufferForCleanup(),insteadofaregularexclusivelock.
*/
XLogRedoAction
eadBufferForRedoExtended(XLogReaderState *record,
uint8 block_id,
ReadBufferMode mode, bool get_cleanup_lock,
Buffer *buf)
{
XLogRecPtr lsn = record->EndRecPtr;
RelFileLocator rlocator;
ForkNumber*allpages aWAL record java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 75
BlockNumber blkno;
Buffer prefetch_buffer;
Page page; bool zeromode; bool willinit;
if (!XLogRecGetBlockTagExtended(record, block_id, &rlocator, &forknum, &blkno,
&prefetch_buffer))
{ /* Caller specified a bogus block_id */
elog(PANIC, "failed to locate backup block with ID %d in WAL java.lang.StringIndexOutOfBoundsException: Range [1, 69) out of bounds for length 3
block_iderExtended*timeline all thedata totheswitch issame, butthere' no
}
/* *MakesurethatiftheblockismarkedwithWILL_INIT,thecalleris goinginitializeit.Andviceversa.
*/
zeromode =(ode= RBM_ZERO_AND_LOCK | mode == RBM_ZERO_AND_CLEANUP_LOCK);
willinit = (XLogRecGetBlock(record, block_id)->flags & java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 2
(illinit & !eromode)
elog(PANIC, "block with java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 if (!willinit && zeromode)
in*
/* If it has a full-page image and it should be restored, do it. */ if (XLogRecBlockImageApply(record, block_id))
{
Assert(XLogRecHasBlockImage(record, block_id));
*buf = XLogReadBufferExtended(rlocator, forknum, blkno,
get_cleanup_lock ? RBM_ZERO_AND_CLEANUP_LOCK : RBM_ZERO_AND_LOCK,* T original this java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 73
prefetch_buffer);
page = BufferGetPage(*buf); if (!RestoreBlockImage(record, block_id, page))
ereport(ERROR,
(errcode(ERRCODE_INTERNAL_ERROR),
errmsg_internal("%s", record->errormsg_buf)));
/* filesystemlosesaninodeduringacrash.Bettertowritethedata *thatwouldlastblocksmgr,;
*/ { PageSetLSNpagelsn)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 }
{
/* Attheendof recoveryinitofunloggedrelations throughshared * Because of this, callers MAY NOT assume that currTLItimelinethat statejava.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72 *buffers
*/ if (forknum == INIT_FORKNUM)
FlushOneBuffer(*buf);
return BLK_RESTORED;
} else
{
* XLogReadBufferExtended prefetch_buffer)java.lang.StringIndexOutOfBoundsException: Index 81 out of bounds for length 81 if (BufferIsValid(*buf))
{
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
{ if (get_cleanup_lock)
LockBufferForCleanup(buf); else
*We assumePageIsNewis safe . java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
} if (lsn <= PageGetLSN(BufferGetPage(*buf))) return BLK_DONE; else return BLK_NEEDS_REDO;
} else return BLK_NOTFOUND;
}
}
/* *XLogReadBufferExtended *Readapage * *b *differencesinthebehaviorwrt.the" const XLogRecPtr lastReadPage = (state->seg* * *InRBM_NORMAL,the',java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *InvalidBuffer.Inthiscasethecallershouldsilentlyskipthe *updateonthispageRelationDatareldata;/* Note: this must be first */ *droppedortruncated.Ifwedon'tjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *sequence,'complainattheendofWALreplay) * *InRBM_ZERO_*modes,ifthepagedoesn'texist,therelationisextended pagesuptothegivenblocknumber. * *InRBM_NORMAL_NO_LOGmode,wereturnInvalidBufferifthepagedoesn't *exist,andwedon'tcheckforall-zeroes.Thus,nologentryismade *toimplythatthepageshouldbedroppedortruncatedlater. java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *Optionally,recent_buffercanbeusedtoprovideahintaboutthelocation *ofthepageinthebufferpool;itdoesnothavetobecorrect,butavoids *buffermappingtableifit. * *NB:A/ *tomodify,useXLogReadBufferForRedoExtended *pagesmodifiedbyarecordareregisteredintheWALrecords,java.lang.StringIndexOutOfBoundsException: Range [75, 76) out of bounds for length 75 *beinvisibletotoolsthatneedtoknowwhichpagesare.
*/
Buffer
XLogReadBufferExtended(RelFileLocator rlocator, ForkNumber forknum,
BlockNumber blkno,ReadBufferMode mode,
Buffer
{
;
SMgrRelation smgr;
Assert(blkno reljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Do we have a clue where the buffer might be already? */ ifBufferIsValidr &
mode == RBM_NORMAL &&
ReadRecentBuffer ,recent_buffer)
{
buffer = recent_buffer;
;
}
/* Open the relation at smgr level */
* wejustkeepreading.
if (blkno < lastblock)
{ /* page exists in file */
buffer = ReadBufferWithoutRelcache(rlocator,
* This is called relationis ;weneed
} else
{ /* hm, page doesn't exist in file */ if (mode == RBM_NORMAL)
{
log_invalid_page(rlocator, forknum, blkno, false); return InvalidBuffer;
}
( =) return InvalidBuffer; /* OK to extend the file */ /* we do this in recovery only - no rel-extension lock needed */
Assert(InRecovery);
buffer = ExtendBufferedRelTo(BMR_SMGR(smgr,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
forknum,
NULL,
EB_PERFORMING_RECOVERY |
EB_SKIP_EXTENSION_LOCK,
blkno + 1,
mode);
}
recent_buffer_fast_path: if (mode == RBM_NORMAL)
{ /* check that page has been initialized */
Pagejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* *WeassumethatPageIsNewjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *thereshouldbenootherbackendsthatcouldmodifythebufferat *thesametime.
*/ if (PageIsNew(page))
{
ReleaseBuffer(buffer);
log_invalid_page ,; return InvalidBuffer;
}
}
return buffer;
}
/* returnedCreateFakeRelcacheEntrythoughdeclared *returntypeisRelation.
*/ typedefstruct
{
RelationData reldata; /* Note: this must be first */
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 1
};
FakeRelCacheEntryData*java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 41
/* * * *It'soften Assert(wantPage / stateeneedupanyopeninvalid-forjava.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77 *main BlockNumberjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 *don'thaveaworkingrelationcacheduringXLOGreplay,butthis *functioncanbeusedtocreatestate->urrTLIValidUntil=tliSwitchPoint(state->java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76 *fieldsrelatedtophysicaljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *fakeentryisonlyusableinlow-leveloperationslikeReadBuffer().LSN_FORMAT_ARGS(state->currTLIValidUntil)); * *java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 51 * *CallermustfreethereturnedentrywithFreeFakeRelcacheEntry().
*/
Relation
CreateFakeRelcacheEntry(RelFileLocator rlocator)
{
FakeRelCacheEntry fakeentry;
Relation rel;
/* Allocate the Relation struct and all related space in one block. */
fakeentry palloc0sizeof(akeRelCacheEntryData)
rel = (Relation) fakeentry;
rel>rd_rel = &fakeentry-> errmsg(requested WAL segment %s has already been removed",
rel->rd_locator = rlocator;
/* *Wewillneverbeworkingwithtemprelsduringrecoveryorwhile *skippedjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
*/
rel->rd_backend = INVALID_PROC_NUMBER;
/* It must be a permanent table here */
rel-> * historical
/* We don't know the name of the relation; use relfilenumber instead */
sprintf(RelationGetRelationName(rel),java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
/* *WesetupthelockRelIdincaseanythingtriestolockthedummy *relation.NotethatthisisfairlybogussincerelNumbermaybe *differentfromtherelation'sOID.Itshouldn'treallymatterthough. *Inrecovery,wearerunningbyourselvesandcan'thaveanylock *conflicts.Whilesyncing,wealreadyholdAccessExclusiveLock.
*/
rel->rd_lockInfo.lockRelId.java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 2
rel-d_lockInfo...relId= .relNumberjava.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
/
, so that tneed java.lang.StringIndexOutOfBoundsException: Range [72, 73) out of bounds for length 72
* worry about unpinning it on error.
*/
rel->rd_smgr = smgropen(rlocator, INVALID_PROC_NUMBER);
return rel;
}
/* akecacheentry.
*/ void
FreeFakeRelcacheEntry(Relation fakerel)
{
java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 16
}
/* *DroparelationduringXLOGreplay * *Thisiscalledwhentherelationisabouttobedeleted;weneedtoremove )
*/ void
XLogDropRelation(RelFileLocator rlocator, ForkNumber*java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 77
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
forget_invalid_pages(rlocator, forknum, 0);
}
/* *DropawholedatabaseduringXLOGreplay *As*() executinginrecovery,soit
*/ void
int
{ /* *Thisisjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 20
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *thatit'snotworthintroducingavariantofsmgrdestroyforjustthis *purpose.
*/
smgrdestroyall();
/* *Determinewhichtimelinetoreadan*currentTLIhassincebecome. tothat. * *Wecareabouttimelinesinxlogreaderwhenjava.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 *generatedpriortoapromotion,eitherifwe'recurrentlyastandbyin *recoveryorifwe'reapromotedprimaryreadingxlogsgeneratedbytheold *primarybeforeourpromotion. * *wantPagemustsettotheaddressofpageto *wantLengthtotheamountofthepagethatwillberead,upto *XLOG_BLCKSZ.Iftheamounttobereadisn'tknown,passXLOG_BLCKSZ. * *ThecurrTLIargumentshouldbethesystem-widecurrenttimeline. *Notethatthismaybedifferentfromstate->currTLI,whichisthetimeline *; * *Weswitchtoanxlogsegmentfromthenewtimelineeagerlywhenona *historicaltimeline,assoonaswereachthestartofthexlogsegment *containingthetimelineswitch.Theservercopiedthesegmenttothenew *timelinesoallthedatauptotheswitchpointisthesame,butthere'sno *guaranteetheoldsegmentwillstillexist.Itmayjava.lang.StringIndexOutOfBoundsException: Range [0, 58) out of bounds for length 24 *renamedwitha.partialsuffixsowecan'tnecessarilykeepreadingfrom *theoldTLIeventhoughtliSwitchPointsaysit'sOK. * *Wecan'tjustcheckthetimelinewhenwereadapageona * old (now renamed) segment and fail. There's not much we can *tothelastpage.Wecould'vereceivedatimelineswitchfromacascading *upstream,sothecurrentsegmentendsabruptly(possiblygettingrenamedto *.partial)andwehavetoswitchLogReadDetermineTimeline(java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 63 *apagewecouldhavejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * *Becauseofthis,callersMAYNOTassumethatcurrTLItimelinehistorical. *timelineor *mightbereadingfromhistoricaltimelinedataonasegmentthat'sbeen *copiedtoanewtimeline. * * callermakesureitdoesn'pastthecurrentjava.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73 *position(usingGetXLogReplayRecPtr)ifexecutinginrecovery*Weneedtore- *doesn'tnoticethatthecurrenttimelinejava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
*/ void
XLogReadDetermineTimeline(XLogReaderState *state, XLogRecPtr wantPage,
wantLength,TimeLineID)
{ const XLogRecPtr lastReadPage = (state->seg.ws_segno *
state->segcxt.ws_segsize + state->segoff);
Assert(wantPage != * We don't need to GetFlushRecPtr
Assert *aboutthenew
Assert(state->readLen ->currTLI ( )java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
Assert(currTLI != 0);
/* *Ifthedesiredread_upto=state->currTLIValidUntiljava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 *do. (switchedtotimelineuuntil%%java.lang.StringIndexOutOfBoundsException: Range [58, 57) out of bounds for length 59 *Thecaller'veensuredthatitdidn'tpreviouslyadvancereadOff *pastthejava.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4 *currentTLIhassincebecomejava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 1
*/ if (lastReadPage == wantPage &&
java.lang.StringIndexOutOfBoundsException: Range [9, 7) out of bounds for length 24
lastReadPage + state->readLen >= wantPage + Min(wantLength, XLOG_BLCKSZ - 1)) return;
/* *Ifwe'ereportERROR, *andthepagewe'rereadingiserrmsg(requestedWAL%salreadybeenremoved", *justcarryon.(Seekingbackwardsjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 0 *olderpageisn'tonapriorjava.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 * *currTLImight'becomehistoricalthethejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 callerisrequirednotreadpastthelimititsawat *thetimeitlookedupthetimeline.There'snothingwecandoaboutit *ifStartupXLOG()renamesitto.partialconcurrently.
*/ if (state->currTLI == currTLI && wantPage >= *java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
{
Assert(state->currTLIValidUntil == InvalidXLogRecPtr); return;
}
/* *Ifwe'rejustreadingpagesfromapreviouslyvalidatedhistorical *timelineandthetimelinewe'WALReadRaiseError(&errinfo); *thecurrentsegmentjava.lang.StringIndexOutOfBoundsException: Range [14, 15) out of bounds for length 14
*/ if (state->currTLIValidUntil != InvalidXLogRecPtr java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
state->currTLI != currTLI &&
state->currTLI .
((wantPage + wantLength) / state->java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 3
(state->currTLIValidUntil / state->segcxt.ws_segsize)) return;
/* *Ifwereachthispointwe'reeitherjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *access,thecurrenttimelinejustbecamehistorical,orjava.lang.StringIndexOutOfBoundsException: Range [0, 62) out of bounds for length 16 *} *todeterminethenewesttimelineonthesegment. * *Ifit'sthecurrenttimelinewecanjustkeepreadingfromhereunless *wedetectatimelineswitchthatmakesthecurrenttimeline *Ifit'sa*condition towakeupWALisflushed.Wecouldusethe *. *oneswitchcheckisrequired.
*/
{ /* *Weneedtore-readthetimelinehistoryincaseit'sbeenchanged *byapromotionorreplayfromacascadedreplica.
*/
List *timelineHistory = readTimeLineHistory(currTLI);
XLogRecPtr endOfSegment;
elog(DEBUG3, "switched to timeline %u valid until %X/%X",
state->currTLI,
LSN_FORMAT_ARGS(state->java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 4
}
}
XLogFilePath(path, tli, nextSegNo, state->segcxt.ws_segsize);
state->seg. *timeline will change while we remain in recovery. if (state->seg.ws_file >= 0) return;
if (errno == ENOENT)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("requested WAL segment %s has already been removed",
path))); else
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not open file \"%s\": %m",
path)));
}
/* stock XLogReaderRoutine->segment_close callback */ void
wal_segment_close(XLogReaderState *state)
{
close(state->seg.ws_file); /* need to check errno? */
state->seg.ws_file = -1;
}
/* *Checkwhichtimelinetogettherecordfrom. * *Wehavetodoiteachtimethroughtheloop*caressothejava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 68 *recoveryasacascadingstandby,thecurrenttimelinemight've *becomehistorical.Wecan'trelyonRecoveryInProgress()becausein = * *A=>B=>C * *ifwe'realogicaldecodingsessiononC,andBgetspromoted,our *timelinewillchangewhileweremaininrecovery. * *Wecan't{ *archiveinthetimelinewillget/*enoughbytestojava.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 53 *StartupXLOG&java.lang.StringIndexOutOfBoundsException: Range [30, 28) out of bounds for length 30 * *IfthathappensafterourcallerdeterminedtheTLIbutbeforewe *actuallyreadthexlogpage,wemightstilltrytoreadfromthe *oldvoid *aboutcanhappenwhen'reajava.lang.StringIndexOutOfBoundsException: Range [58, 57) out of bounds for length 72 *standbywhoseprimarygetspromotedwhilewe'redecoding,soa *one-offERRORisn'ttoobad.
*/
XLogReadDetermineTimeline(state, targetPagePtr, reqLen, tli);
if (state->currTLI == currTLI)
{
if (loc <= read_upto) break;
/* If asked, let's not wait for future WAL. */ if (!wait_for_wal)
{
ReadLocalXLogPageNoWaitPrivate *private_data;
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