[TBASE-1123]

src/client/src/tscSystem.c

@@ -83,6 +83,8 @@ void taos_init_imp() {
     tscTrace("Local IP address is:%s", tsLocalIp);
   }
 
+  taosSetCoreDump();
+
 #ifdef CLUSTER
   tscMgmtIpList.numOfIps = 2;
   strcpy(tscMgmtIpList.ipstr[0], tsMasterIp);

src/os/linux/inc/os.h

@@ -214,6 +214,9 @@ bool taosSkipSocketCheck();
 
 int64_t str2int64(char *str);
 
+void taosSetCoreDump();
+
+
 #define BUILDIN_CLZL(val) __builtin_clzl(val)
 #define BUILDIN_CLZ(val) __builtin_clz(val)
 #define BUILDIN_CTZL(val) __builtin_ctzl(val)

src/os/linux/src/tsystem.c

@@ -25,6 +25,14 @@
 #include <sys/types.h>
 #include <sys/utsname.h>
 #include <unistd.h>
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#include <sys/syscall.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/sysctl.h>
 
 #include "tglobalcfg.h"
 #include "tlog.h"
@@ -577,3 +585,119 @@ void taosKillSystem() {
   pPrint("taosd will shut down soon");
   kill(tsProcId, 2);
 }
+
+
+int _sysctl(struct __sysctl_args *args );
+void taosSetCoreDump() {
+  // 1. set ulimit -c unlimited
+  struct rlimit rlim;
+  struct rlimit rlim_new;
+  if (getrlimit(RLIMIT_CORE, &rlim) == 0) {
+    pPrint("the old unlimited para: rlim_cur=%d, rlim_max=%d", rlim.rlim_cur, rlim.rlim_max);
+    rlim_new.rlim_cur = RLIM_INFINITY;
+    rlim_new.rlim_max = RLIM_INFINITY;
+    if (setrlimit(RLIMIT_CORE, &rlim_new) != 0) {
+      pPrint("set unlimited fail, error: %s", strerror(errno));
+      rlim_new.rlim_cur = rlim.rlim_max;
+      rlim_new.rlim_max = rlim.rlim_max;
+      (void)setrlimit(RLIMIT_CORE, &rlim_new);
+    }
+  }
+
+  if (getrlimit(RLIMIT_CORE, &rlim) == 0) {
+    pPrint("the new unlimited para: rlim_cur=%d, rlim_max=%d", rlim.rlim_cur, rlim.rlim_max);
+  }
+
+  // 2. set the path for saving core file
+  struct __sysctl_args args;
+  int     old_usespid;
+  size_t  old_len;
+  int     new_usespid = 1;
+  size_t  new_len     = sizeof(new_usespid);
+  
+  int name[] = {CTL_KERN, KERN_CORE_USES_PID};
+  
+  memset(&args, 0, sizeof(struct __sysctl_args));
+  args.name    = name;
+  args.nlen    = sizeof(name)/sizeof(name[0]);
+  args.oldval  = &old_usespid;
+  args.oldlenp = &old_len;
+  args.newval  = &new_usespid;
+  args.newlen  = new_len;
+  
+  old_len = sizeof(old_usespid);
+  
+  if (syscall(SYS__sysctl, &args) == -1) {
+      pPrint("_sysctl(kern_core_uses_pid) fail!");
+  }
+  
+  pPrint("The old core_uses_pid[%d]: %d", old_len, old_usespid);
+    
+  memset(&args, 0, sizeof(struct __sysctl_args));
+  args.name    = name;
+  args.nlen    = sizeof(name)/sizeof(name[0]);
+  args.oldval  = &old_usespid;
+  args.oldlenp = &old_len;
+  
+  old_len = sizeof(old_usespid);
+  
+  if (syscall(SYS__sysctl, &args) == -1) {
+      pPrint("_sysctl(kern_core_uses_pid) fail!");
+  }
+  
+  pPrint("The new core_uses_pid[%d]: %d", old_len, old_usespid);
+  
+#if 0
+  // 3. set the path for saving core file
+  int status; 
+  char coredump_dir[32] = "/var/log/taosdump";
+  if (opendir(coredump_dir) == NULL) {
+    status = mkdir(coredump_dir, S_IRWXU | S_IRWXG | S_IRWXO); 
+    if (status) {
+      pPrint("mkdir fail, error: %s\n", strerror(errno));
+    }
+  }
+
+  // 4. set kernel.core_pattern
+   struct __sysctl_args args;
+   char    old_corefile[128];
+   size_t  old_len;
+   char    new_corefile[128] = "/var/log/taosdump/core-%e-%p";
+   size_t  new_len = sizeof(new_corefile);
+   
+   int name[] = {CTL_KERN, KERN_CORE_PATTERN};
+
+   memset(&args, 0, sizeof(struct __sysctl_args));
+   args.name    = name;
+   args.nlen    = sizeof(name)/sizeof(name[0]);
+   args.oldval  = old_corefile;
+   args.oldlenp = &old_len;
+   args.newval  = new_corefile;
+   args.newlen  = new_len;
+
+   old_len = sizeof(old_corefile);
+
+   if (syscall(SYS__sysctl, &args) == -1) {
+       pPrint("_sysctl(kern_core_pattern) fail!");
+   }
+   
+   pPrint("The old kern_core_pattern: %*s\n", old_len, old_corefile);
+
+
+   memset(&args, 0, sizeof(struct __sysctl_args));
+   args.name    = name;
+   args.nlen    = sizeof(name)/sizeof(name[0]);
+   args.oldval  = old_corefile;
+   args.oldlenp = &old_len;
+   
+   old_len = sizeof(old_corefile);
+
+   if (syscall(SYS__sysctl, &args) == -1) {
+       pPrint("_sysctl(kern_core_pattern) fail!");
+   }
+   
+   pPrint("The new kern_core_pattern: %*s\n", old_len, old_corefile);
+#endif
+  
+}
+

src/system/detail/src/dnodeSystem.c

@@ -143,6 +143,8 @@ int dnodeInitSystem() {
   tsPrintGlobalConfig();
   dPrint("Server IP address is:%s", tsInternalIp);
 
+  taosSetCoreDump();
+
   signal(SIGPIPE, SIG_IGN);
 
   dnodeInitModules();