How big is it? Maybe i can have it anyway? I pulled two ancient ultrasparcs out of my closet to try to debug your issue, but unfortunately they are a pita to work with (dead nvram battery on both, zeroed mac address, etc.) Id still love to get to the bottom of this. On Aug 22, 2014 3:59 PM, <tony.apo...@iqor.com> wrote:
> Hi Adrien, > It's a bunch of garbled binary data, basically a dump of the process image. > Tony > > > On Thursday, August 21, 2014 6:36:12 PM UTC-4, Adrien Grand wrote: >> >> Hi Tony, >> >> Do you have more information in the core dump file? (cf. the "Core dump >> written" line that you pasted) >> >> >> On Thu, Aug 21, 2014 at 7:53 PM, <tony....@iqor.com> wrote: >> >>> Hello, >>> I installed ES 1.3.2 on a spare Solaris 11/ T4-4 SPARC server to scale >>> out of small x86 machine. I get a similar exception running ES with >>> JAVA_OPTS=-d64. When Logstash 1.4.1 sends the first message I get the >>> error below on the ES process: >>> >>> >>> # >>> # A fatal error has been detected by the Java Runtime Environment: >>> # >>> # SIGBUS (0xa) at pc=0xffffffff7a9a3d8c, pid=14473, tid=209 >>> # >>> # JRE version: 7.0_25-b15 >>> # Java VM: Java HotSpot(TM) 64-Bit Server VM (23.25-b01 mixed mode >>> solaris-sparc compressed oops) >>> # Problematic frame: >>> # V [libjvm.so+0xba3d8c] Unsafe_GetInt+0x158 >>> # >>> # Core dump written. Default location: >>> /export/home/elasticsearch/elasticsearch-1.3.2/core >>> or core.14473 >>> # >>> # If you would like to submit a bug report, please visit: >>> # http://bugreport.sun.com/bugreport/crash.jsp >>> # >>> >>> --------------- T H R E A D --------------- >>> >>> Current thread (0x0000000107078000): JavaThread >>> "elasticsearch[KYLIE1][http_server_worker][T#17]{New I/O worker #147}" >>> daemon [_thread_in_vm, id=209, stack(0xffffffff5b800000, >>> 0xffffffff5b840000)] >>> >>> siginfo:si_signo=SIGBUS: si_errno=0, si_code=1 (BUS_ADRALN), >>> si_addr=0x0000000709cc09e7 >>> >>> >>> I can run ES using 32bit java but have to shrink ES_HEAPS_SIZE more than >>> I want to. Any assistance would be appreciated. >>> >>> Regards, >>> Tony >>> >>> >>> On Tuesday, July 22, 2014 5:43:28 AM UTC-4, David Roberts wrote: >>>> >>>> Hello, >>>> >>>> After upgrading from Elasticsearch 1.0.1 to 1.2.2 I'm getting JVM core >>>> dumps on Solaris 10 on SPARC. >>>> >>>> # A fatal error has been detected by the Java Runtime Environment: >>>> # >>>> # SIGBUS (0xa) at pc=0xffffffff7e452d78, pid=15483, tid=263 >>>> # >>>> # JRE version: Java(TM) SE Runtime Environment (7.0_55-b13) (build >>>> 1.7.0_55-b13) >>>> # Java VM: Java HotSpot(TM) 64-Bit Server VM (24.55-b03 mixed mode >>>> solaris-sparc compressed oops) >>>> # Problematic frame: >>>> # V [libjvm.so+0xc52d78] Unsafe_GetLong+0x158 >>>> >>>> I'm pretty sure the problem here is that Elasticsearch is making >>>> increasing use of "unsafe" functions in Java, presumably to speed things >>>> up, and some CPUs are more picky than others about memory alignment. In >>>> particular, x86 will tolerate misaligned memory access whereas SPARC won't. >>>> >>>> Somebody has tried to report this to Oracle in the past and >>>> (understandably) Oracle has said that if you're going to use unsafe >>>> functions you need to understand what you're doing: >>>> http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8021574 >>>> >>>> A quick grep through the code of the two versions of Elasticsearch >>>> shows that the new use of "unsafe" memory access functions is in the >>>> BytesReference, MurmurHash3 and HyperLogLogPlusPlus classes: >>>> >>>> bash-3.2$ git checkout v1.0.1 >>>> Checking out files: 100% (2904/2904), done. >>>> >>>> bash-3.2$ find . -name '*.java' | xargs grep UnsafeUtils >>>> ./src/main/java/org/elasticsearch/common/util/UnsafeUtils.java:public >>>> enum UnsafeUtils { >>>> ./src/main/java/org/elasticsearch/search/aggregations/bucket/ >>>> BytesRefHash.java: if (id == -1L || UnsafeUtils.equals(key, >>>> get(id, spare))) { >>>> ./src/main/java/org/elasticsearch/search/aggregations/bucket/ >>>> BytesRefHash.java: } else if (UnsafeUtils.equals(key, >>>> get(curId, spare))) { >>>> ./src/test/java/org/elasticsearch/benchmark/common/util/Byte >>>> sRefComparisonsBenchmark.java:import org.elasticsearch.common.util. >>>> UnsafeUtils; >>>> ./src/test/java/org/elasticsearch/benchmark/common/util/Byte >>>> sRefComparisonsBenchmark.java: return >>>> UnsafeUtils.equals(b1, b2); >>>> >>>> bash-3.2$ git checkout v1.2.2 >>>> Checking out files: 100% (2220/2220), done. >>>> >>>> bash-3.2$ find . -name '*.java' | xargs grep UnsafeUtils >>>> ./src/main/java/org/elasticsearch/common/bytes/BytesReference.java:import >>>> org.elasticsearch.common.util.UnsafeUtils; >>>> ./src/main/java/org/elasticsearch/common/bytes/BytesReferenc >>>> e.java: return UnsafeUtils.equals(a.array(), >>>> a.arrayOffset(), b.array(), b.arrayOffset(), a.length()); >>>> ./src/main/java/org/elasticsearch/common/hash/MurmurHash3.java:import >>>> org.elasticsearch.common.util.UnsafeUtils; >>>> ./src/main/java/org/elasticsearch/common/hash/MurmurHash3.java: >>>> return UnsafeUtils.readLongLE(key, blockOffset); >>>> ./src/main/java/org/elasticsearch/common/hash/MurmurHash3. >>>> java: long k1 = UnsafeUtils.readLongLE(key, i); >>>> ./src/main/java/org/elasticsearch/common/hash/MurmurHash3. >>>> java: long k2 = UnsafeUtils.readLongLE(key, i + 8); >>>> ./src/main/java/org/elasticsearch/common/util/BytesRefHash.java: >>>> if (id == -1L || UnsafeUtils.equals(key, get(id, spare))) { >>>> ./src/main/java/org/elasticsearch/common/util/BytesRefHash.java: >>>> } else if (UnsafeUtils.equals(key, get(curId, spare))) { >>>> ./src/main/java/org/elasticsearch/common/util/UnsafeUtils.java:public >>>> enum UnsafeUtils { >>>> ./src/main/java/org/elasticsearch/search/aggregations/metrics/ >>>> cardinality/HyperLogLogPlusPlus.java:import >>>> org.elasticsearch.common.util.UnsafeUtils; >>>> ./src/main/java/org/elasticsearch/search/aggregations/metrics/ >>>> cardinality/HyperLogLogPlusPlus.java: return >>>> UnsafeUtils.readIntLE(readSpare.bytes, readSpare.offset); >>>> ./src/test/java/org/elasticsearch/benchmark/common/util/Byte >>>> sRefComparisonsBenchmark.java:import org.elasticsearch.common.util. >>>> UnsafeUtils; >>>> ./src/test/java/org/elasticsearch/benchmark/common/util/Byte >>>> sRefComparisonsBenchmark.java: return >>>> UnsafeUtils.equals(b1, b2); >>>> >>>> Presumably one of these three new uses is what is causing the JVM >>>> SIGBUS error I'm seeing. >>>> >>>> A quick look at the MurmurHash3 class shows that the hash128 method >>>> accepts an arbitrary offset and passes it to an unsafe function with no >>>> check that it's a multiple of 8: >>>> >>>> public static Hash128 hash128(byte[] key, int offset, int length, >>>> long seed, Hash128 hash) { >>>> long h1 = seed; >>>> long h2 = seed; >>>> >>>> if (length >= 16) { >>>> >>>> final int len16 = length & 0xFFFFFFF0; // higher multiple >>>> of 16 that is lower than or equal to length >>>> final int end = offset + len16; >>>> for (int i = offset; i < end; i += 16) { >>>> long k1 = UnsafeUtils.readLongLE(key, i); >>>> long k2 = UnsafeUtils.readLongLE(key, i + 8); >>>> >>>> This is a recipe for generating JVM core dumps on architectures such as >>>> SPARC, Itanium and PowerPC that don't support unaligned 64 bit memory >>>> access. >>>> >>>> Does Elasticsearch have any policy for support of hardware other than >>>> x86? If not, I don't think many people would care but you really ought to >>>> clearly say so on your platform support page. If you do intend to support >>>> non-x86 architectures then you need to be much more careful about the use >>>> of unsafe memory accesses. >>>> >>>> Regards, >>>> >>>> David >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "elasticsearch" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to elasticsearc...@googlegroups.com. >>> To view this discussion on the web visit https://groups.google.com/d/ >>> msgid/elasticsearch/eb7f4c23-b63e-4c2e-87c3-029fc58449fc% >>> 40googlegroups.com >>> <https://groups.google.com/d/msgid/elasticsearch/eb7f4c23-b63e-4c2e-87c3-029fc58449fc%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> Adrien Grand >> > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to elasticsearch+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/12aa33de-ccc7-485a-8c52-562f3e91a535%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/12aa33de-ccc7-485a-8c52-562f3e91a535%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. 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