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From Ole Kværnø (JIRA) <j...@apache.org>
Subject [jira] Commented: (LUCENE-552) NPE during mergeSegments
Date Thu, 27 Apr 2006 06:58:06 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-552?page=comments#action_12376656 ] 

Ole Kværnø commented on LUCENE-552:
-----------------------------------

Occured once more.  Further log details (SRC = rev 396455)
     ...
     [java] [GC 537735K->471821K(769088K), 0.0765670 secs]
     [java] [GC 541005K->475102K(769088K), 0.0767420 secs]
     [java] [GC 544286K->478897K(769088K), 0.0757440 secs]
     [java] [GC 548081K->485157K(769088K), 0.1270930 secs]
     [java] merging segments _17q8 (1 docs) _17q9 (1 docs) _17qa (1 docs) _17qb (1 docs) _17qc
(1 docs) _17qd (1 docs) _17qe (1 docs) _17qf (1 docs) _17qg (1 docs) _17qh (1 docs) _17qi
(1 docs) _17qj (1 docs) _17qk (1 docs) _17ql (1 docs) _17qm (1 docs) _17qn (1 docs) _17qo
(1 docs) _17qp (1 docs) _17qq (1 docs) _17qr (1 docs) _17qs (1 docs) _17qt (1 docs) _17qu
(1 docs) _17qv (1 docs) _17qw (1 docs) _17qx (1 docs) _17qy (1 docs) _17qz (1 docs) _17r0
(1 docs) _17r1 (1 docs) _17r2 (1 docs) _17r3 (1 docs) _17r4 (1 docs) _17r5 (1 docs) _17r6
(1 docs) _17r7 (1 docs) _17r8 (1 docs) _17r9 (1 docs) _17ra (1 docs) _17rb (1 docs) _17rc
(1 docs) _17rd (1 docs) _17re (1 docs) _17rf (1 docs) _17rg (1 docs) _17rh (1 docs) _17ri
(1 docs) _17rj (1 docs) _17rk (1 docs) _17rl (1 docs) _17rm (1 docs) _17rn (1 docs) _17ro
(1 docs) _17rp (1 docs) _17rq (1 docs) _17rr (1 docs) _17rs (1 docs) _17rt (1 docs) _17ru
(1 docs) _17rv (1 docs) _17rw (1 docs) _17rx (1 docs) _17ry (1 docs) _17rz (1 docs) _17s0
(1 docs) _17s1 (1 docs) _17s2 (1 docs) _17s3 (1 docs) _17s4 (1 docs) _17s5 (1 docs) _17s6
(1 docs) _17s7 (1 docs) _17s8 (1 docs) _17s9 (1 docs) _17sa (1 docs) _17sb (1 docs) _17sc
(1 docs) _17sd (1 docs) _17se (1 docs) _17sf (1 docs) _17sg (1 docs) _17sh (1 docs) _17si
(1 docs) _17sj (1 docs) _17sk (1 docs) _17sl (1 docs) _17sm (1 docs) _17sn (1 docs) _17so
(1 docs) _17sp (1 docs) _17sq (1 docs) _17sr (1 docs) _17ss (1 docs) _17st (1 docs) _17su
(1 docs) _17sv (1 docs) _17sw (1 docs) _17sx (1 docs) _17sy (1 docs) _17sz (1 docs) _17t0
(1 docs) _17t1 (1 docs) _17t2 (1 docs) _17t3 (1 docs) _17t4 (1 docs) _17t5 (1 docs) _17t6
(1 docs) _17t7 (1 docs) _17t8 (1 docs) _17t9 (1 docs) _17ta (1 docs) _17tb (1 docs) _17tc
(1 docs) _17td (1 docs) _17te (1 docs) _17tf (1 docs) _17tg (1 docs) _17th (1 docs) _17ti
(1 docs) _17tj (1 docs) _17tk (1 docs) _17tl (1 docs) _17tm (1 docs) _17tn (1 docs) _17to
(1 docs) _17tp (1 docs) _17tq (1 docs) _17tr (1 docs) _17ts (1 docs) _17tt (1 docs) _17tu
(1 docs) _17tv (1 docs) _17tw (1 docs) _17tx (1 docs) _17ty (1 docs) _17tz (1 docs) _17u0
(1 docs) _17u1 (1 docs) _17u2 (1 docs) _17u3 (1 docs) _17u4 (1 docs) _17u5 (1 docs) _17u6
(1 docs) _17u7 (1 docs) _17u8 (1 docs) _17u9 (1 docs) _17ua (1 docs) _17ub (1 docs) _17uc
(1 docs) _17ud (1 docs) _17ue (1 docs) _17uf (1 docs) _17ug (1 docs) _17uh (1 docs) _17ui
(1 docs) _17uj (1 docs) _17uk (1 docs) _17ul (1 docs) _17um (1 docs) _17un (1 docs) _17uo
(1 docs) _17up (1 docs) _17uq (1 docs) _17ur (1 docs) _17us (1 docs) _17ut (1 docs) _17uu
(1 docs) _17uv (1 docs) _17uw (1 docs) _17ux (1 docs) _17uy (1 docs) _17uz (1 docs) _17v0
(1 docs) _17v1 (1 docs) _17v2 (1 docs) _17v3 (1 docs) _17v4 (1 docs) _17v5 (1 docs) _17v6
(1 docs) _17v7 (1 docs) _17v8 (1 docs) _17v9 (1 docs) _17va (1 docs) _17vb (1 docs) _17vc
(1 docs) _17vd (1 docs) _17ve (1 docs) _17vf (1 docs) _17vg (1 docs) _17vh (1 docs) _17vi
(1 docs) _17vj (1 docs) _17vk (1 docs) _17vl (1 docs) _17vm (1 docs) _17vn (1 docs) _17vo
(1 docs) _17vp (1 docs) _17vq (1 docs) _17vr (1 docs) _17vs (1 docs) _17vt (1 docs) _17vu
(1 docs) _17vv (1 docs) _17vw (1 docs) _17vx (1 docs) _17vy (1 docs) _17vz (1 docs) _17w0
(1 docs) _17w1 (1 docs) _17w2 (1 docs) _17w3 (1 docs) _17w4 (1 docs) _17w5 (1 docs) _17w6
(1 docs) _17w7 (1 docs) _17w8 (1 docs) _17w9 (1 docs) _17wa (1 docs) _17wb (1 docs) _17wc
(1 docs) _17wd (1 docs) _17we (1 docs) _17wf (1 docs) _17wg (1 docs) _17wh (1 docs) _17wi
(1 docs) _17wj (1 docs) _17wk (1 docs) _17wl (1 docs) _17wm (1 docs) _17wn (1 docs) _17wo
(1 docs) _17wp (1 docs) _17wq (1 docs) _17wr (1 docs) _17ws (1 docs) _17wt (1 docs) _17wu
(1 docs) _17wv (1 docs) _17ww (1 docs) _17wx (1 docs) _17wy (1 docs) _17wz (1 docs) _17x0
(1 docs) _17x1 (1 docs) _17x2 (1 docs) _17x3 (1 docs) _17x4 (1 docs) _17x5 (1 docs) _17x6
(1 docs) _17x7 (1 docs) _17x8 (1 docs) _17x9 (1 docs) _17xa (1 docs) _17xb (1 docs) _17xc
(1 docs) _17xd (1 docs) _17xe (1 docs) _17xf (1 docs) _17xg (1 docs) _17xh (1 docs) _17xi
(1 docs) _17xj (1 docs) _17xk (1 docs) _17xl (1 docs) _17xm (1 docs) _17xn (1 docs) _17xo
(1 docs) _17xp (1 docs) _17xq (1 docs) _17xr (1 docs) _17xs (1 docs) _17xt (1 docs) _17xu
(1 docs) _17xv (1 docs) _17xw (1 docs) _17xx (1 docs) _17xy (1 docs) _17xz (1 docs) _17y0
(1 docs) _17y1 (1 docs) _17y2 (1 docs) _17y3 (1 docs) _17y4 (1 docs) _17y5 (1 docs) _17y6
(1 docs) _17y7 (1 docs) _17y8 (1 docs) _17y9 (1 docs) _17ya (1 docs) _17yb (1 docs) _17yc
(1 docs) _17yd (1 docs) _17ye (1 docs) _17yf (1 docs) _17yg (1 docs) _17yh (1 docs) _17yi
(1 docs) _17yj (1 docs) _17yk (1 docs) _17yl (1 docs) _17ym (1 docs) _17yn (1 docs) _17yo
(1 docs) _17yp (1 docs) _17yq (1 docs) _17yr (1 docs) _17ys (1 docs) _17yt (1 docs) _17yu
(1 docs) _17yv (1 docs) _17yw (1 docs) _17yx (1 docs) _17yy (1 docs) _17yz (1 docs) _17z0
(1 docs) _17z1 (1 docs) _17z2 (1 docs) _17z3 (1 docs) _17z4 (1 docs) _17z5 (1 docs) _17z6
(1 docs) _17z7 (1 docs) _17z8 (1 docs) _17z9 (1 docs) _17za (1 docs) _17zb (1 docs) _17zc
(1 docs) _17zd (1 docs) _17ze (1 docs) _17zf (1 docs) _17zg (1 docs) _17zh (1 docs) _17zi
(1 docs) _17zj (1 docs) _17zk (1 docs) _17zl (1 docs) _17zm (1 docs) _17zn (1 docs) _17zo
(1 docs) _17zp (1 docs) _17zq (1 docs) _17zr (1 docs) _17zs (1 docs) _17zt (1 docs) _17zu
(1 docs) _17zv (1 docs) _17zw (1 docs) _17zx (1 docs) _17zy (1 docs) _17zz (1 docs) _1800
(1 docs) _1801 (1 docs) _1802 (1 docs) _1803 (1 docs) _1804 (1 docs) _1805 (1 docs) _1806
(1 docs) _1807 (1 docs) _1808 (1 docs) _1809 (1 docs) _180a (1 docs) _180b (1 docs) _180c
(1 docs) _180d (1 docs) _180e (1 docs) _180f (1 docs) _180g (1 docs) _180h (1 docs) _180i
(1 docs) _180j (1 docs) _180k (1 docs) _180l (1 docs) _180m (1 docs) _180n (1 docs) _180o
(1 docs) _180p (1 docs) _180q (1 docs) _180r (1 docs) _180s (1 docs) _180t (1 docs) _180u
(1 docs) _180v (1 docs) _180w (1 docs) _180x (1 docs) _180y (1 docs) _180z (1 docs) _1810
(1 docs) _1811 (1 docs) _1812 (1 docs) _1813 (1 docs) _1814 (1 docs) _1815 (1 docs) _1816
(1 docs) _1817 (1 docs) _1818 (1 docs) _1819 (1 docs) _181a (1 docs) _181b (1 docs) _181c
(1 docs) _181d (1 docs) _181e (1 docs) _181f (1 docs) _181g (1 docs) _181h (1 docs) _181i
(1 docs) _181j (1 docs) _181k (1 docs) _181l (1 docs) _181m (1 docs) _181n (1 docs) _181o
(1 docs) _181p (1 docs) _181q (1 docs) _181r (1 docs) _181s (1 docs) _181t (1 docs) _181u
(1 docs) _181v (1 docs) _181w (1 docs) _181x (1 docs) _181y (1 docs) _181z (1 docs) _1820
(1 docs) _1821 (1 docs) _1822 (1 docs) _1823 (1 docs) _1824 (1 docs) _1825 (1 docs) _1826
(1 docs) _1827 (1 docs) _1828 (1 docs) _1829 (1 docs) _182a (1 docs) _182b (1 docs) _182c
(1 docs) _182d (1 docs) _182e (1 docs) _182f (1 docs) _182g (1 docs) _182h (1 docs) _182i
(1 docs) _182j (1 docs) _182k (1 docs) _182l (1 docs) _182m (1 docs) _182n (1 docs) _182o
(1 docs) _182p (1 docs) _182q (1 docs) _182r (1 docs) _182s (1 docs) _182t (1 docs) _182u
(1 docs) _182v (1 docs) _182w (1 docs) _182x (1 docs) _182y (1 docs) _182z (1 docs) _1830
(1 docs) _1831 (1 docs) _1832 (1 docs) _1833 (1 docs) _1834 (1 docs) _1835 (1 docs) _1836
(1 docs) _1837 (1 docs) _1838 (1 docs) _1839 (1 docs) _183a (1 docs) _183b (1 docs) _183c
(1 docs) _183d (1 docs) _183e (1 docs) _183f (1 docs) _183g (1 docs) _183h (1 docs) _183i
(1 docs) _183j (1 docs) _183k (1 docs) _183l (1 docs) _183m (1 docs) _183n (1 docs) _183o
(1 docs) _183p (1 docs) _183q (1 docs) _183r (1 docs) _183s (1 docs) _183t (1 docs) _183u
(1 docs) _183v (1 docs) _183w (1 docs) _183x (1 docs) _183y (1 docs) _183z (1 docs) _1840
(1 docs) _1841 (1 docs) _1842 (1 docs) _1843 (1 docs) into _1844 (500 docs)
     [java] Exception in thread "Thread-4" java.lang.NullPointerException
     [java]     at org.apache.lucene.store.RAMDirectory.fileExists(RAMDirectory.java:110)
     [java]     at org.apache.lucene.index.SegmentReader.files(SegmentReader.java:253)
     [java]     at org.apache.lucene.index.IndexWriter.deleteSegments(IndexWriter.java:764)
     [java]     at org.apache.lucene.index.IndexWriter.access$200(IndexWriter.java:59)
     [java]     at org.apache.lucene.index.IndexWriter$4.doBody(IndexWriter.java:725)
     [java]     at org.apache.lucene.store.Lock$With.run(Lock.java:99)
     [java]     at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:722)
     [java]     at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:684)
     [java]     at org.apache.lucene.index.IndexWriter.flushRamSegments(IndexWriter.java:654)
     [java]     at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:402)
     [java]     at com.magentanews.index.IndexManager.insertDocuments(IndexManager.java:194)
     [java]     at com.magentanews.index.SplitIndexManager.insertDocuments(SplitIndexManager.java:151)
     [java]     at com.magentanews.index.LuceneFeeder.insertDocuments(LuceneFeeder.java:259)
     [java]     at com.magentanews.index.IndexerApplication.insertDocuments(IndexerApplication.java:293)
     [java]     at com.magentanews.index.IndexerApplication.run(IndexerApplication.java:182)


> NPE during mergeSegments
> ------------------------
>
>          Key: LUCENE-552
>          URL: http://issues.apache.org/jira/browse/LUCENE-552
>      Project: Lucene - Java
>         Type: Bug

>   Components: Index
>     Versions: 2.0
>  Environment: 2.0-rc1-dev
>     Reporter: Ole Kværnø

>
> The JVM stops with a NPE after running for about 6-8 hours, indexing about 500.000 articles.
> After a restart of the JVM, the problematic merge seems to complete OK.
> Exception in thread "Thread-4" java.lang.NullPointerException
> at org.apache.lucene.store.RAMInputStream.<init>(RAMInputStream.java:32)
> at org.apache.lucene.store.RAMDirectory.openInput(RAMDirectory.java:171)
> at org.apache.lucene.index.SegmentReader.initialize(SegmentReader.java:155)
> at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:129)
> at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:110)
> at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:700)
> at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:684)
> at org.apache.lucene.index.IndexWriter.flushRamSegments(IndexWriter.java:654)
> at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:402)
> at com.magentanews.index.IndexManager.insertDocuments(IndexManager.java:190)
> at com.magentanews.index.SplitIndexManager.insertDocuments(SplitIndexManager.java:152)
> at com.magentanews.index.LuceneFeeder.insertDocuments(LuceneFeeder.java:234)
> at com.magentanews.index.IndexerApplication.insertDocuments(IndexerApplication.java:255)
> at com.magentanews.index.IndexerApplication.run(IndexerApplication.java:160)

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