[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12846624#action_12846624
]
Hudson commented on ZOOKEEPER-591:
--
Integrated in ZooKeeper-trunk #755 (See
[http://hudson.zones.apache.org/hudson/job/ZooKeeper-trunk/755/])
. The C Client cannot exit properly in some situation
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch,
> ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, ZOOKEEPER-591_1.patch,
> ZOOKEEPER-591_1.patch, ZOOKEEPER-591_1.patch, ZOOKEEPER-591_2.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
--
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[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12846607#action_12846607
]
Hadoop QA commented on ZOOKEEPER-591:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12439082/ZOOKEEPER-591_2.patch
against trunk revision 924147.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no tests are needed for this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/30/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/30/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/30/console
This message is automatically generated.
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch,
> ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, ZOOKEEPER-591_1.patch,
> ZOOKEEPER-591_1.patch, ZOOKEEPER-591_1.patch, ZOOKEEPER-591_2.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12846376#action_12846376
]
Hudson commented on ZOOKEEPER-591:
--
Integrated in ZooKeeper-trunk #754 (See
[http://hudson.zones.apache.org/hudson/job/ZooKeeper-trunk/754/])
. The C Client cannot exit properly in some situation (mahadev)
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch,
> ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, ZOOKEEPER-591_1.patch,
> ZOOKEEPER-591_1.patch, ZOOKEEPER-591_1.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
--
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[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12846324#action_12846324
]
Hadoop QA commented on ZOOKEEPER-591:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12438988/ZOOKEEPER-591_1.patch
against trunk revision 924065.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 5 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/29/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/29/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/29/console
This message is automatically generated.
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch,
> ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, ZOOKEEPER-591_1.patch,
> ZOOKEEPER-591_1.patch, ZOOKEEPER-591_1.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844391#action_12844391
]
Qian Ye commented on ZOOKEEPER-591:
---
This patch works for me, thx mahadev
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch,
> ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
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[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844263#action_12844263
]
Hadoop QA commented on ZOOKEEPER-591:
-
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12438547/ZOOKEEPER-591.patch
against trunk revision 921853.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 5 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/13/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/13/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/13/console
This message is automatically generated.
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch,
> ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_ha
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844245#action_12844245
]
Hadoop QA commented on ZOOKEEPER-591:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12438540/ZOOKEEPER-591.patch
against trunk revision 921853.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no tests are needed for this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/12/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/12/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/12/console
This message is automatically generated.
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch,
> ZOOKEEPER-591.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844181#action_12844181
]
Mahadev konar commented on ZOOKEEPER-591:
-
i think we can am working on including it as soon as we figure out the
fix.
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
--
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[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844179#action_12844179
]
Patrick Hunt commented on ZOOKEEPER-591:
This test case from qian, we plan to add this to the c unit tests right?
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch, zootest.c
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
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[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844113#action_12844113
]
Mahadev konar commented on ZOOKEEPER-591:
-
Qian,
I can reproduce this as well on trunk. Yes, my patch does not fix the bug. I
am still working on it.
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
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[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12843870#action_12843870
]
Qian Ye commented on ZOOKEEPER-591:
---
The process still hang there, Mahadev.
(gdb) info thread
2 Thread 1094719840 (LWP 31877) 0x00302b8089aa in
pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/tls/libpthread.so.0
1 Thread 182894113888 (LWP 31875) 0x00302b806ffb in pthread_join () from
/lib64/tls/libpthread.so.0
(gdb) thread 1
[Switching to thread 1 (Thread 182894113888 (LWP 31875))]#0 0x00302b806ffb
in pthread_join () from /lib64/tls/libpthread.so.0
(gdb) bt
#0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
#1 0x0040de5b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:218
#2 0x004060da in zookeeper_close (zh=0x515b60) at src/zookeeper.c:2109
#3 0x0040220b in main ()
(gdb) thread 2
[Switching to thread 2 (Thread 1094719840 (LWP 31877))]#0 0x00302b8089aa
in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/tls/libpthread.so.0
(gdb) bt
#0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/tls/libpthread.so.0
#1 0x0040d8ab in wait_sync_completion (sc=0x5167f0) at
src/mt_adaptor.c:82
#2 0x004082e9 in zoo_wget_children (zh=0x515b60, path=0x40ebe0
"/mytest", watcher=0x401fd8 , watcherCtx=Variable
"watcherCtx" is not available.
)
at src/zookeeper.c:2889
#3 0x00402037 in default_zoo_watcher ()
#4 0x0040d684 in deliverWatchers (zh=0x515b60, type=4, state=3,
path=0x515100 "/mytest", list=0x2a95700b08) at src/zk_hashtable.c:271
#5 0x00403771 in process_completions (zh=0x515b60) at
src/zookeeper.c:1623
#6 0x0040e1d5 in do_completion (v=Variable "v" is not available.
) at src/mt_adaptor.c:332
#7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
#8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
#9 0x in ?? ()
I patched the patch to the c client source code version 3.2.2, not the working
copy, I think this won't make any difference, right?
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12843789#action_12843789
]
Hadoop QA commented on ZOOKEEPER-591:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12438438/ZOOKEEPER-591.patch
against trunk revision 921509.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no tests are needed for this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/11/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/11/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/11/console
This message is automatically generated.
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Blocker
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch, ZOOKEEPER-591.patch
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/myt
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12843443#action_12843443
]
Qian Ye commented on ZOOKEEPER-591:
---
Hi Mahadev, the patch doesn't work :-(, the deadlock still exist.
(gdb) info thread
2 Thread 1094719840 (LWP 13889) 0x00302b8089aa in
pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/tls/libpthread.so.0
1 Thread 182894113888 (LWP 13887) 0x00302b806ffb in pthread_join () from
/lib64/tls/libpthread.so.0
(gdb) thread 1
[Switching to thread 1 (Thread 182894113888 (LWP 13887))]#0 0x00302b806ffb
in pthread_join ()
from /lib64/tls/libpthread.so.0
(gdb) bt
#0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
#1 0x0040de2b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:218
#2 0x004060aa in zookeeper_close (zh=0x515b60) at src/zookeeper.c:2086
#3 0x0040220b in main ()
(gdb) thread 2
[Switching to thread 2 (Thread 1094719840 (LWP 13889))]#0 0x00302b8089aa
in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/tls/libpthread.so.0
(gdb) bt
#0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/tls/libpthread.so.0
#1 0x0040d87b in wait_sync_completion (sc=0x517850) at
src/mt_adaptor.c:82
#2 0x004082b9 in zoo_wget_children (zh=0x515b60, path=0x40eba0
"/mytest",
watcher=0x401fd8 , watcherCtx=Variable "watcherCtx" is
not available.
) at src/zookeeper.c:2866
#3 0x00402037 in default_zoo_watcher ()
#4 0x0040d654 in deliverWatchers (zh=0x515b60, type=4, state=3,
path=0x516920 "/mytest",
list=0x5177d8) at src/zk_hashtable.c:271
#5 0x00403871 in process_completions (zh=0x515b60) at
src/zookeeper.c:1620
#6 0x0040e1a5 in do_completion (v=Variable "v" is not available.
) at src/mt_adaptor.c:332
#7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
#8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
#9 0x in ?? ()
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Critical
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089a
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12843394#action_12843394
]
Hadoop QA commented on ZOOKEEPER-591:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12438345/ZOOKEEPER-591.patch
against trunk revision 921117.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no tests are needed for this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
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Findbugs warnings:
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Console output:
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> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Mahadev konar
>Priority: Critical
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-591.patch
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at
[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841941#action_12841941
]
Mahadev konar commented on ZOOKEEPER-591:
-
ben, did you get a chance to take a look at it ?
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>Assignee: Benjamin Reed
>Priority: Critical
> Fix For: 3.3.0
>
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
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[jira] Commented: (ZOOKEEPER-591) The C Client cannot exit properly in some situation
[
https://issues.apache.org/jira/browse/ZOOKEEPER-591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12801661#action_12801661
]
Qian Ye commented on ZOOKEEPER-591:
---
The reason of the deadlock is that the io thread didn't check whether there is
some sync commands still in processing, before it returned. I think some kind
of pending sync commands and thread mutex should be added to make sure the
zookeeper handler can be closed properly. Has anyone have a look at this bug
yet?
> The C Client cannot exit properly in some situation
> ---
>
> Key: ZOOKEEPER-591
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-591
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
>Affects Versions: 3.2.1
> Environment: Linux db-passport-test05.vm 2.6.9_5-4-0-5 #1 SMP Tue Apr
> 14 15:56:24 CST 2009 x86_64 x86_64 x86_64 GNU/Linux
>Reporter: Qian Ye
>
> The following code produce a situation, where the C Client can not exit
> properly,
> #include "include/zookeeper.h"
> void default_zoo_watcher(zhandle_t *zzh, int type, int state, const char
> *path, void* context){
> int zrc = 0;
> struct String_vector str_vec = {0, NULL};
> printf("in the default_zoo_watcher\n");
> zrc = zoo_wget_children(zzh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> return;
> }
> int main()
> {
> int zrc = 0;
> int buff_len = 10;
> char buff[10] = "hello";
> char path[512];
> struct Stat stat;
> struct String_vector str_vec = {0, NULL};
> zhandle_t *zh = zookeeper_init("10.81.20.62:2181", NULL, 3, 0, 0, 0);
> zrc = zoo_create(zh, "/mytest", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0, path,
> 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_create(zh, "/mytest/test1", buff, 10, &ZOO_OPEN_ACL_UNSAFE, 0,
> path, 512);
> printf("zoo_create, error: %d\n", zrc);
> zrc = zoo_wget_children(zh, "/mytest", default_zoo_watcher, NULL,
> &str_vec);
> printf("zoo_wget_children, error: %d\n", zrc);
> zrc = zoo_delete(zh, "/mytest/test1", -1);
> printf("zoo_delete, error: %d\n", zrc);
> zookeeper_close(zh);
> return 0;
> }
> running this code can cause the program hang at zookeeper_close(zh);(line
> 38). using gdb to attach the process, I found that the main thread is waiting
> for do_completion thread to finish,
> (gdb) bt
> #0 0x00302b806ffb in pthread_join () from /lib64/tls/libpthread.so.0
> #1 0x0040de3b in adaptor_finish (zh=0x515b60) at src/mt_adaptor.c:219
> #2 0x004060ba in zookeeper_close (zh=0x515b60) at
> src/zookeeper.c:2100
> #3 0x0040220b in main ()
> and the thread which handle the zoo_wget_children(in the default_zoo_watcher)
> is waiting for sc->cond.
> (gdb) thread 2
> [Switching to thread 2 (Thread 1094719840 (LWP 25093))]#0 0x00302b8089aa
> in pthread_cond_wait@@GLIBC_2.3.2 ()
>from /lib64/tls/libpthread.so.0
> (gdb) bt
> #0 0x00302b8089aa in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/tls/libpthread.so.0
> #1 0x0040d88b in wait_sync_completion (sc=0x5167f0) at
> src/mt_adaptor.c:82
> #2 0x004082c9 in zoo_wget_children (zh=0x515b60, path=0x40ebc0
> "/mytest", watcher=0x401fd8 , watcherCtx=Variable
> "watcherCtx" is not available.)
> at src/zookeeper.c:2884
> #3 0x00402037 in default_zoo_watcher ()
> #4 0x0040d664 in deliverWatchers (zh=0x515b60, type=4, state=3,
> path=0x515100 "/mytest", list=0x5177d8) at src/zk_hashtable.c:274
> #5 0x00403861 in process_completions (zh=0x515b60) at
> src/zookeeper.c:1631
> #6 0x0040e1b5 in do_completion (v=Variable "v" is not available.) at
> src/mt_adaptor.c:333
> #7 0x00302b80610a in start_thread () from /lib64/tls/libpthread.so.0
> #8 0x00302afc6003 in clone () from /lib64/tls/libc.so.6
> #9 0x in ?? ()
> here, a deadlock presents.
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