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https://issues.apache.org/jira/browse/HDFS-10193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208515#comment-15208515
]
Hadoop QA commented on HDFS-10193:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 19s
{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s
{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s
{color} | {color:red} The patch doesn't appear to include any new or modified
tests. Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m
11s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 27s
{color} | {color:green} trunk passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 25s
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 20s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
17s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
13s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 22s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 16s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
12s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 54s
{color} | {color:green} hadoop-hdfs-native-client in the patch passed with JDK
v1.8.0_74. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 45s
{color} | {color:green} hadoop-hdfs-native-client in the patch passed with JDK
v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
24s {color} | {color:green} Patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 16m 29s {color}
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:fbe3e86 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12794847/HDFS-10193.001.patch |
| JIRA Issue | HDFS-10193 |
| Optional Tests | asflicense compile cc mvnsite javac unit |
| uname | Linux 69f9b7add17c 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed
Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / 368c773 |
| Default Java | 1.7.0_95 |
| Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_74
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| JDK v1.7.0_95 Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/14908/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-native-client U:
hadoop-hdfs-project/hadoop-hdfs-native-client |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/14908/console |
| Powered by | Apache Yetus 0.2.0 http://yetus.apache.org |
This message was automatically generated.
> fuse_dfs segfaults if uid cannot be resolved to a username
> ----------------------------------------------------------
>
> Key: HDFS-10193
> URL: https://issues.apache.org/jira/browse/HDFS-10193
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fuse-dfs
> Affects Versions: 2.0.0-alpha, 2.6.0
> Environment: Confirmed with Cloudera
> hadoop-hdfs-fuse-2.6.0+cdh5.5.0+921-1.cdh5.5.0.p0.15.el6.x86_64 on CentOS 6
> Reporter: John Thiltges
> Attachments: HDFS-10193.001.patch
>
>
> When a user does an 'ls' on a HDFS FUSE mount, dfs_getattr() is called and
> fuse_dfs attempts to resolve the user's uid into a username string with
> getUsername(). If this lookup is unsuccessful, getUsername() returns NULL
> leading to a segfault in hdfsConnCompare().
> Sites storing NSS info in a remote database (such as LDAP) will occasionally
> have NSS failures if there are connectivity or daemon issues. Running
> processes accessing the HDFS mount during this time may cause the fuse_dfs
> process to crash, disabling the mount.
> To reproduce the issue:
> 1) Add a new local user
> 2) su to the new user
> 3) As root, edit /etc/passwd, changing the new user's uid number
> 4) As the new user, do an ls on an HDFS FUSE mount. This should cause a
> segfault.
> Backtrace from fuse_dfs segfault
> (hadoop-hdfs-fuse-2.0.0+545-1.cdh4.1.1.p0.21.osg33.el6.x86_64)
> {noformat}
> #0 0x0000003f43c32625 in raise (sig=<value optimized out>) at
> ../nptl/sysdeps/unix/sysv/linux/raise.c:64
> #1 0x0000003f43c33e05 in abort () at abort.c:92
> #2 0x0000003f46beb785 in os::abort (dump_core=true) at
> /usr/src/debug/java-1.7.0-openjdk/openjdk/hotspot/src/os/linux/vm/os_linux.cpp:1640
> #3 0x0000003f46d5f03f in VMError::report_and_die (this=0x7ffa3cdf86f0) at
> /usr/src/debug/java-1.7.0-openjdk/openjdk/hotspot/src/share/vm/utilities/vmError.cpp:1075
> #4 0x0000003f46d5f70b in crash_handler (sig=11, info=0x7ffa3cdf88b0,
> ucVoid=0x7ffa3cdf8780) at
> /usr/src/debug/java-1.7.0-openjdk/openjdk/hotspot/src/os/linux/vm/vmError_linux.cpp:106
> #5 <signal handler called>
> #6 os::is_first_C_frame (fr=<value optimized out>) at
> /usr/src/debug/java-1.7.0-openjdk/openjdk/hotspot/src/share/vm/runtime/os.cpp:1025
> #7 0x0000003f46d5e071 in VMError::report (this=0x7ffa3cdf9560,
> st=0x7ffa3cdf93e0) at
> /usr/src/debug/java-1.7.0-openjdk/openjdk/hotspot/src/share/vm/utilities/vmError.cpp:617
> #8 0x0000003f46d5ebad in VMError::report_and_die (this=0x7ffa3cdf9560) at
> /usr/src/debug/java-1.7.0-openjdk/openjdk/hotspot/src/share/vm/utilities/vmError.cpp:1009
> #9 0x0000003f46bf0322 in JVM_handle_linux_signal (sig=11,
> info=0x7ffa3cdf9730, ucVoid=0x7ffa3cdf9600, abort_if_unrecognized=1021285600)
> at
> /usr/src/debug/java-1.7.0-openjdk/openjdk/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp:531
> #10 <signal handler called>
> #11 __strcmp_sse42 () at ../sysdeps/x86_64/multiarch/strcmp.S:259
> #12 0x0000000000403d3d in hdfsConnCompare (head=<value optimized out>,
> elm=<value optimized out>) at
> /usr/src/debug/hadoop-2.0.0-cdh4.1.1/src/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_connect.c:204
> #13 hdfsConnTree_RB_FIND (head=<value optimized out>, elm=<value optimized
> out>) at
> /usr/src/debug/hadoop-2.0.0-cdh4.1.1/src/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_connect.c:81
> #14 0x0000000000404245 in hdfsConnFind (usrname=0x0, ctx=0x7ff95013b800,
> out=0x7ffa3cdf9c60) at
> /usr/src/debug/hadoop-2.0.0-cdh4.1.1/src/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_connect.c:220
> #15 fuseConnect (usrname=0x0, ctx=0x7ff95013b800, out=0x7ffa3cdf9c60) at
> /usr/src/debug/hadoop-2.0.0-cdh4.1.1/src/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_connect.c:517
> #16 0x0000000000404337 in fuseConnectAsThreadUid (conn=0x7ffa3cdf9c60) at
> /usr/src/debug/hadoop-2.0.0-cdh4.1.1/src/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_connect.c:544
> #17 0x0000000000404c55 in dfs_getattr (path=0x7ff950150de0 "/user/users01",
> st=0x7ffa3cdf9d20) at
> /usr/src/debug/hadoop-2.0.0-cdh4.1.1/src/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_impls_getattr.c:37
> #18 0x0000003f47c0b353 in lookup_path (f=0x15e39f0, nodeid=22546,
> name=0x7ff9602d0058 "users01", path=<value optimized out>, e=0x7ffa3cdf9d10,
> fi=<value optimized out>) at fuse.c:1824
> #19 0x0000003f47c0d865 in fuse_lib_lookup (req=0x7ff950003fe0, parent=22546,
> name=0x7ff9602d0058 "users01") at fuse.c:2017
> #20 0x0000003f47c120ef in fuse_do_work (data=0x7ff9600e3f30) at
> fuse_loop_mt.c:107
> #21 0x0000003f44407aa1 in start_thread (arg=0x7ffa3cdfa700) at
> pthread_create.c:301
> #22 0x0000003f43ce893d in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:115
> {noformat}
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