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Posted to issues@trafficserver.apache.org by shinrich <gi...@git.apache.org> on 2016/10/14 15:40:58 UTC

[GitHub] trafficserver pull request #1111: TS-4972: Configure collapsed_forwarding pl...

GitHub user shinrich opened a pull request:

    https://github.com/apache/trafficserver/pull/1111

    TS-4972: Configure collapsed_forwarding plugin as global or remap.

    Add the ability to configure collapsed_forwarding plugin globally.  Original version can only be configured per remap.
    
    Also cleaned up a memory leak in the event of failed transaction.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/shinrich/trafficserver ts-4972

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/trafficserver/pull/1111.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1111
    
----
commit 0bebc97d000e09058d4c8c28c085145c694c1973
Author: Susan Hinrichs <sh...@ieee.org>
Date:   2016-10-14T15:38:12Z

    TS-4972: Configure collapsed_forwarding plugin as global or remap.

----


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[GitHub] trafficserver pull request #1111: TS-4972: Configure collapsed_forwarding pl...

Posted by shinrich <gi...@git.apache.org>.
Github user shinrich closed the pull request at:

    https://github.com/apache/trafficserver/pull/1111


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[GitHub] trafficserver pull request #1111: TS-4972: Configure collapsed_forwarding pl...

Posted by shinrich <gi...@git.apache.org>.
Github user shinrich commented on a diff in the pull request:

    https://github.com/apache/trafficserver/pull/1111#discussion_r83475325
  
    --- Diff: plugins/experimental/collapsed_forwarding/collapsed_forwarding.cc ---
    @@ -265,49 +307,69 @@ collapsed_cont(TSCont contp, TSEvent event, void *edata)
       return TS_SUCCESS;
     }
     
    -TSReturnCode
    -TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    -{
    -  TSDebug(DEBUG_TAG, "plugin is succesfully initialized");
    -  return TS_SUCCESS;
    -}
    -
    -TSReturnCode
    -TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +void
    +process_args(int argc, const char **argv)
     {
       // basic argv processing..
    -  for (int i = 2; i < argc; ++i) {
    +  for (int i = 1; i < argc; ++i) {
         if (strncmp(argv[i], "--delay=", 8) == 0) {
           OPEN_WRITE_FAIL_REQ_DELAY_TIMEOUT = atoi((char *)(argv[i] + 8));
         } else if (strncmp(argv[i], "--retries=", 10) == 0) {
           OPEN_WRITE_FAIL_MAX_REQ_DELAY_RETRIES = atoi((char *)(argv[i] + 10));
         }
       }
    -
    -  return TS_SUCCESS;
     }
     
    -TSRemapStatus
    -TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
    +/*
    + * Initialize globally
    + */
    +void
    +TSPluginInit(int argc, const char *argv[])
     {
    +  TSPluginRegistrationInfo info;
    +
    +  info.plugin_name   = (char *)DEBUG_TAG;
    +  info.vendor_name   = (char *)"Apache Software Foundation";
    +  info.support_email = (char *)"dev@trafficserver.apache.org";
    +
    +  if (TS_SUCCESS != TSPluginRegister(&info)) {
    +    TSError("[%s] Plugin registration failed.", DEBUG_TAG);
    +  }
    +
    +  process_args(argc, argv);
    +
       TSCont cont = TSContCreate(collapsed_cont, TSMutexCreate());
     
    -  RequestData *req_data = new RequestData();
    +  TSDebug(DEBUG_TAG, "Global Initialized");
    +  // Set up the per transaction state in the READ_REQUEST event
    +  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
     
    -  req_data->txnp     = rh;
    -  req_data->wl_retry = 0;
    +  global_init = true;
    +}
     
    -  int url_len = 0;
    -  char *url   = TSHttpTxnEffectiveUrlStringGet(rh, &url_len);
    -  req_data->req_url.assign(url, url_len);
    +TSReturnCode
    +TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    +{
    +  if (global_init) {
    +    TSError("Cannot initialize %s as both global and remap plugin", DEBUG_TAG);
    +    return TS_ERROR;
    +  } else {
    +    TSDebug(DEBUG_TAG, "plugin is succesfully initialized for remap");
    +    return TS_SUCCESS;
    +  }
    +}
     
    -  TSfree(url);
    -  TSContDataSet(cont, req_data);
    +TSReturnCode
    +TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +{
    +  process_args(argc, const_cast<const char **>(argv + 1));
    --- End diff --
    
    Good point.  I'll check out that case.


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[GitHub] trafficserver pull request #1111: TS-4972: Configure collapsed_forwarding pl...

Posted by SolidWallOfCode <gi...@git.apache.org>.
Github user SolidWallOfCode commented on a diff in the pull request:

    https://github.com/apache/trafficserver/pull/1111#discussion_r83473939
  
    --- Diff: plugins/experimental/collapsed_forwarding/collapsed_forwarding.cc ---
    @@ -265,49 +307,69 @@ collapsed_cont(TSCont contp, TSEvent event, void *edata)
       return TS_SUCCESS;
     }
     
    -TSReturnCode
    -TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    -{
    -  TSDebug(DEBUG_TAG, "plugin is succesfully initialized");
    -  return TS_SUCCESS;
    -}
    -
    -TSReturnCode
    -TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +void
    +process_args(int argc, const char **argv)
     {
       // basic argv processing..
    -  for (int i = 2; i < argc; ++i) {
    +  for (int i = 1; i < argc; ++i) {
         if (strncmp(argv[i], "--delay=", 8) == 0) {
           OPEN_WRITE_FAIL_REQ_DELAY_TIMEOUT = atoi((char *)(argv[i] + 8));
         } else if (strncmp(argv[i], "--retries=", 10) == 0) {
           OPEN_WRITE_FAIL_MAX_REQ_DELAY_RETRIES = atoi((char *)(argv[i] + 10));
         }
       }
    -
    -  return TS_SUCCESS;
     }
     
    -TSRemapStatus
    -TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
    +/*
    + * Initialize globally
    + */
    +void
    +TSPluginInit(int argc, const char *argv[])
     {
    +  TSPluginRegistrationInfo info;
    +
    +  info.plugin_name   = (char *)DEBUG_TAG;
    +  info.vendor_name   = (char *)"Apache Software Foundation";
    +  info.support_email = (char *)"dev@trafficserver.apache.org";
    +
    +  if (TS_SUCCESS != TSPluginRegister(&info)) {
    +    TSError("[%s] Plugin registration failed.", DEBUG_TAG);
    +  }
    +
    +  process_args(argc, argv);
    +
       TSCont cont = TSContCreate(collapsed_cont, TSMutexCreate());
     
    -  RequestData *req_data = new RequestData();
    +  TSDebug(DEBUG_TAG, "Global Initialized");
    +  // Set up the per transaction state in the READ_REQUEST event
    +  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
     
    -  req_data->txnp     = rh;
    -  req_data->wl_retry = 0;
    +  global_init = true;
    --- End diff --
    
    I wondered about that. But I would be concerned about the plugin firing twice for the same transaction. Not to mention, what's the point of a remap rule if it's already enabled for every transaction?


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[GitHub] trafficserver issue #1111: TS-4972: Configure collapsed_forwarding plugin as...

Posted by atsci <gi...@git.apache.org>.
Github user atsci commented on the issue:

    https://github.com/apache/trafficserver/pull/1111
  
    FreeBSD build *successful*! See https://ci.trafficserver.apache.org/job/Github-FreeBSD/1014/ for details.
     



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[GitHub] trafficserver pull request #1111: TS-4972: Configure collapsed_forwarding pl...

Posted by shinrich <gi...@git.apache.org>.
Github user shinrich commented on a diff in the pull request:

    https://github.com/apache/trafficserver/pull/1111#discussion_r83489086
  
    --- Diff: plugins/experimental/collapsed_forwarding/collapsed_forwarding.cc ---
    @@ -265,49 +307,69 @@ collapsed_cont(TSCont contp, TSEvent event, void *edata)
       return TS_SUCCESS;
     }
     
    -TSReturnCode
    -TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    -{
    -  TSDebug(DEBUG_TAG, "plugin is succesfully initialized");
    -  return TS_SUCCESS;
    -}
    -
    -TSReturnCode
    -TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +void
    +process_args(int argc, const char **argv)
     {
       // basic argv processing..
    -  for (int i = 2; i < argc; ++i) {
    +  for (int i = 1; i < argc; ++i) {
         if (strncmp(argv[i], "--delay=", 8) == 0) {
           OPEN_WRITE_FAIL_REQ_DELAY_TIMEOUT = atoi((char *)(argv[i] + 8));
         } else if (strncmp(argv[i], "--retries=", 10) == 0) {
           OPEN_WRITE_FAIL_MAX_REQ_DELAY_RETRIES = atoi((char *)(argv[i] + 10));
         }
       }
    -
    -  return TS_SUCCESS;
     }
     
    -TSRemapStatus
    -TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
    +/*
    + * Initialize globally
    + */
    +void
    +TSPluginInit(int argc, const char *argv[])
     {
    +  TSPluginRegistrationInfo info;
    +
    +  info.plugin_name   = (char *)DEBUG_TAG;
    +  info.vendor_name   = (char *)"Apache Software Foundation";
    +  info.support_email = (char *)"dev@trafficserver.apache.org";
    +
    +  if (TS_SUCCESS != TSPluginRegister(&info)) {
    +    TSError("[%s] Plugin registration failed.", DEBUG_TAG);
    +  }
    +
    +  process_args(argc, argv);
    +
       TSCont cont = TSContCreate(collapsed_cont, TSMutexCreate());
     
    -  RequestData *req_data = new RequestData();
    +  TSDebug(DEBUG_TAG, "Global Initialized");
    +  // Set up the per transaction state in the READ_REQUEST event
    +  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
     
    -  req_data->txnp     = rh;
    -  req_data->wl_retry = 0;
    +  global_init = true;
    +}
     
    -  int url_len = 0;
    -  char *url   = TSHttpTxnEffectiveUrlStringGet(rh, &url_len);
    -  req_data->req_url.assign(url, url_len);
    +TSReturnCode
    +TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    +{
    +  if (global_init) {
    +    TSError("Cannot initialize %s as both global and remap plugin", DEBUG_TAG);
    +    return TS_ERROR;
    +  } else {
    +    TSDebug(DEBUG_TAG, "plugin is succesfully initialized for remap");
    +    return TS_SUCCESS;
    +  }
    +}
     
    -  TSfree(url);
    -  TSContDataSet(cont, req_data);
    +TSReturnCode
    +TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +{
    +  process_args(argc, const_cast<const char **>(argv + 1));
    --- End diff --
    
    Updated new version that decrements argc appropriately.  Verified that it is correct in the remap case.


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[GitHub] trafficserver pull request #1111: TS-4972: Configure collapsed_forwarding pl...

Posted by jpeach <gi...@git.apache.org>.
Github user jpeach commented on a diff in the pull request:

    https://github.com/apache/trafficserver/pull/1111#discussion_r83462452
  
    --- Diff: plugins/experimental/collapsed_forwarding/collapsed_forwarding.cc ---
    @@ -265,49 +307,69 @@ collapsed_cont(TSCont contp, TSEvent event, void *edata)
       return TS_SUCCESS;
     }
     
    -TSReturnCode
    -TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    -{
    -  TSDebug(DEBUG_TAG, "plugin is succesfully initialized");
    -  return TS_SUCCESS;
    -}
    -
    -TSReturnCode
    -TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +void
    +process_args(int argc, const char **argv)
     {
       // basic argv processing..
    -  for (int i = 2; i < argc; ++i) {
    +  for (int i = 1; i < argc; ++i) {
         if (strncmp(argv[i], "--delay=", 8) == 0) {
           OPEN_WRITE_FAIL_REQ_DELAY_TIMEOUT = atoi((char *)(argv[i] + 8));
         } else if (strncmp(argv[i], "--retries=", 10) == 0) {
           OPEN_WRITE_FAIL_MAX_REQ_DELAY_RETRIES = atoi((char *)(argv[i] + 10));
         }
       }
    -
    -  return TS_SUCCESS;
     }
     
    -TSRemapStatus
    -TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
    +/*
    + * Initialize globally
    + */
    +void
    +TSPluginInit(int argc, const char *argv[])
     {
    +  TSPluginRegistrationInfo info;
    +
    +  info.plugin_name   = (char *)DEBUG_TAG;
    +  info.vendor_name   = (char *)"Apache Software Foundation";
    +  info.support_email = (char *)"dev@trafficserver.apache.org";
    +
    +  if (TS_SUCCESS != TSPluginRegister(&info)) {
    +    TSError("[%s] Plugin registration failed.", DEBUG_TAG);
    +  }
    +
    +  process_args(argc, argv);
    +
       TSCont cont = TSContCreate(collapsed_cont, TSMutexCreate());
     
    -  RequestData *req_data = new RequestData();
    +  TSDebug(DEBUG_TAG, "Global Initialized");
    +  // Set up the per transaction state in the READ_REQUEST event
    +  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
     
    -  req_data->txnp     = rh;
    -  req_data->wl_retry = 0;
    +  global_init = true;
    --- End diff --
    
    It seems like the only reason I can't have this as a global and a transaction plugin is the config is in globals. What do you think about moving that into an instance config for the remap case?


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[GitHub] trafficserver issue #1111: TS-4972: Configure collapsed_forwarding plugin as...

Posted by atsci <gi...@git.apache.org>.
Github user atsci commented on the issue:

    https://github.com/apache/trafficserver/pull/1111
  
    Linux build *successful*! See https://ci.trafficserver.apache.org/job/Github-Linux/906/ for details.
     



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enabled and wishes so, or if the feature is enabled but not working, please
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[GitHub] trafficserver pull request #1111: TS-4972: Configure collapsed_forwarding pl...

Posted by jpeach <gi...@git.apache.org>.
Github user jpeach commented on a diff in the pull request:

    https://github.com/apache/trafficserver/pull/1111#discussion_r83461915
  
    --- Diff: plugins/experimental/collapsed_forwarding/collapsed_forwarding.cc ---
    @@ -265,49 +307,69 @@ collapsed_cont(TSCont contp, TSEvent event, void *edata)
       return TS_SUCCESS;
     }
     
    -TSReturnCode
    -TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    -{
    -  TSDebug(DEBUG_TAG, "plugin is succesfully initialized");
    -  return TS_SUCCESS;
    -}
    -
    -TSReturnCode
    -TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +void
    +process_args(int argc, const char **argv)
     {
       // basic argv processing..
    -  for (int i = 2; i < argc; ++i) {
    +  for (int i = 1; i < argc; ++i) {
         if (strncmp(argv[i], "--delay=", 8) == 0) {
           OPEN_WRITE_FAIL_REQ_DELAY_TIMEOUT = atoi((char *)(argv[i] + 8));
         } else if (strncmp(argv[i], "--retries=", 10) == 0) {
           OPEN_WRITE_FAIL_MAX_REQ_DELAY_RETRIES = atoi((char *)(argv[i] + 10));
         }
       }
    -
    -  return TS_SUCCESS;
     }
     
    -TSRemapStatus
    -TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
    +/*
    + * Initialize globally
    + */
    +void
    +TSPluginInit(int argc, const char *argv[])
     {
    +  TSPluginRegistrationInfo info;
    +
    +  info.plugin_name   = (char *)DEBUG_TAG;
    +  info.vendor_name   = (char *)"Apache Software Foundation";
    +  info.support_email = (char *)"dev@trafficserver.apache.org";
    +
    +  if (TS_SUCCESS != TSPluginRegister(&info)) {
    +    TSError("[%s] Plugin registration failed.", DEBUG_TAG);
    +  }
    +
    +  process_args(argc, argv);
    +
       TSCont cont = TSContCreate(collapsed_cont, TSMutexCreate());
     
    -  RequestData *req_data = new RequestData();
    +  TSDebug(DEBUG_TAG, "Global Initialized");
    +  // Set up the per transaction state in the READ_REQUEST event
    +  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
     
    -  req_data->txnp     = rh;
    -  req_data->wl_retry = 0;
    +  global_init = true;
    +}
     
    -  int url_len = 0;
    -  char *url   = TSHttpTxnEffectiveUrlStringGet(rh, &url_len);
    -  req_data->req_url.assign(url, url_len);
    +TSReturnCode
    +TSRemapInit(TSRemapInterface * /* api_info */, char * /* errbuf */, int /* errbuf_size */)
    +{
    +  if (global_init) {
    +    TSError("Cannot initialize %s as both global and remap plugin", DEBUG_TAG);
    +    return TS_ERROR;
    +  } else {
    +    TSDebug(DEBUG_TAG, "plugin is succesfully initialized for remap");
    +    return TS_SUCCESS;
    +  }
    +}
     
    -  TSfree(url);
    -  TSContDataSet(cont, req_data);
    +TSReturnCode
    +TSRemapNewInstance(int argc, char *argv[], void ** /* ih */, char * /* errbuf */, int /* errbuf_size */)
    +{
    +  process_args(argc, const_cast<const char **>(argv + 1));
    --- End diff --
    
    Don't you also need to adjust ``argc``?


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[GitHub] trafficserver issue #1111: TS-4972: Configure collapsed_forwarding plugin as...

Posted by atsci <gi...@git.apache.org>.
Github user atsci commented on the issue:

    https://github.com/apache/trafficserver/pull/1111
  
    FreeBSD build *successful*! See https://ci.trafficserver.apache.org/job/Github-FreeBSD/1011/ for details.
     



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enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
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---

[GitHub] trafficserver issue #1111: TS-4972: Configure collapsed_forwarding plugin as...

Posted by SolidWallOfCode <gi...@git.apache.org>.
Github user SolidWallOfCode commented on the issue:

    https://github.com/apache/trafficserver/pull/1111
  
    Seems fine.


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[GitHub] trafficserver issue #1111: TS-4972: Configure collapsed_forwarding plugin as...

Posted by atsci <gi...@git.apache.org>.
Github user atsci commented on the issue:

    https://github.com/apache/trafficserver/pull/1111
  
    Linux build *successful*! See https://ci.trafficserver.apache.org/job/Github-Linux/903/ for details.
     



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